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    Ultra-narrow band blue emission of Eu2+ in halogenated (Alumino)borate systems based on high lattice symmetry / Y. Wei [et al.] // J. Am. Ceram. Soc. - 2019. - Vol. 102. - P. 2353– 2369, DOI 10.1111/jace.16127. - Cited References: 63. - This work was supported by the National Natural Science Foundation of China (Grant Nos. 51672259, 51672265, 21521092, 51750110511), Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences (Wuhan) (No. NGM2016KF002), the Ministry of Science and Technology of Taiwan (Contract No. MOST 104-2113-M-027-007-MY3), the Key Research Program of Frontier Sciences, CAS (Grant No. YZDY-SSW-JSC018), and projects for science and technology development plan of Jilin province (20170414003GH), the Program for Jiangmen Innovative Reasearch Team (No.[2017]385),major program of basic research and applied research of Guangdong Province (2017KZDXM083) and the Russian Science Foundation (Grant No. 17-12-01047). . - ISSN 0002-7820
   Перевод заглавия: Ультра-узкое синее излучение Eu2 + в галогенированных (алюмо)боратных системах с высокой решеточной симметрией
Кл.слова (ненормированные):
blue emission -- high symmetry -- phosphors -- ultra-narrow band -- WLEDs
Аннотация: Phosphor materials with ultra‐high color purity are highly desired in backlit display and WLEDs. How to achieve high‐purity three‐primary emission in rare earth ions activated inorganic phosphors has become a hot topic. Herein, we reported ultra‐narrow band and highly efficient blue‐violet‐emitting Eu2+‐doped Ba2B5O9X (fwhm = 31 nm) and NaBa4(AlB4O9)2X3 (X = Cl, Br) (fwhm = 43 nm) phosphors with peak positions around 424‐437 nm. Especially, the color purity of Ba2B5O9Cl:Eu sample even exceeded 97%, its internal quantum efficiency could achieve 87%. The EXANES analysis revealed that the Eu mainly existed in the form of +2. According to the Rietveld structural refinement, extraordinarily narrow band emission should be attributed to the highly symmetric lattice structures with the flower‐like polyhedrons in the studied (alumino)borate matrix. Significantly, the color gamut of as‐prepared blue phosphor combined with the standard green and red phosphors was almost close to that of Rec. 2020 display standard. In addition, cation substitution strategy in NaBa4(AlxB5‐xO9)2Cl3 (x = 0‐4) and NaBa4(GayB5‐yO9)2Cl3 (y = 0‐3) samples successfully achieved spectra adjustment, and the underlying mechanism was proposed. All these results demonstrate that the as‐prepared phosphors could be superior blue‐emitting candidates for backlit display as well as WLEDs.

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Держатели документа:
Faculty of Materials Science and Chemistry, Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan, China
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Organic and Polymeric Materials, National Taipei University of Technology, Taipei, Taiwan
National Synchrotron Radiation Research Center, Hsinchu, Taiwan
School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong, China

Доп.точки доступа:
Wei, Y.; Qu, X.; Li, G.; Cheng, Z.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Lin, C. C.; Chan, T. -S.; Chang, C. -K.; Chuang, Y. -C.; Lin, J.
}
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Thermophysical study of structural phase transitions in Na0.95Li0.05NbO3 solid solution / M. V. Gorev [et al.] // Bull. Russ. Acad. Sci. Phys. - 2016. - Vol. 80, Is. 9. - P. 1046-1050, DOI 10.3103/S1062873816090148. - Cited References: 18. - This work was supported by Southern Federal University, project no. 213.01-2014/012-VG. . - ISSN 1062-8738
Кл.слова (ненормированные):
Niobium oxide -- Sodium -- Specific heat -- Temperature distribution -- Thermal expansion -- Ceramic samples -- Effect of heat treatments -- Possible mechanisms -- Sodium lithium niobate -- Structural distortions -- Structural phase transition -- Temperature dependence -- Temperature range -- Lithium
Аннотация: Temperature dependences of specific heat Cp(T) and coefficient of thermal expansion α(T) for Na0.95Li0.05NbO3 sodium-lithium niobate ceramic samples are investigated in the temperature range of 100–800 K. The Cp(T) and α(T) anomalies at T3 = 310 ± 3 K, T2 = 630 ± 8 K, and T1 = 710 ± 10 K are observed, which correspond to the sequence of phase transitions N ↔ Q ↔ S(R) ↔ T2(S). The effect of heat treatment of the samples on the sequence of structural distortions was established. It is demonstrated that annealing of the samples at 603 K leads to splitting of the anomaly corresponding to the phase transition Q → R/S in two anomalies. After sample heating to 800 K, the only anomaly is observed in both the Cp(T) and α(T) dependence. Possible mechanisms of the observed phenomena are discussed.

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Публикация на русском языке Теплофизические исследования структурных фазовых переходов в твердом растворе Na0.95Li0.05NbO3 [Текст] / М. В. Горев [и др.] // Изв. РАН. Сер. физич. - 2016. - Т. 80 № 9. - С. 1145-1149

Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Southern Federal University, Rostov-on-Don, Russian Federation

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Raevskaya, S. I.; Flerov, I. N.; Флёров, Игорь Николаевич; Malitskaya, M. A.; Raevskii, I. P.
}
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Thermal expansion, polarization and phase diagrams of Ba1-yBi2y/3Ti1-xZrxO3 and Ba1-yLayTi1-y/4O3 compounds / M. . Gorev [et al.] // J. Phys.: Condens. Matter. - 2009. - Vol. 21, Is. 7. - Ст. 75902. - P., DOI 10.1088/0953-8984/21/7/075902. - Cited References: 28. - This work was supported by the Russian Foundation for Basic Research ( project no. 07-02-00069) and the Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools ( project no. NSh-1011.2008.2). . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
HEAT-CAPACITY
   CERAMICS
   BA(TI1-XZRX)O-3
   FERROELECTRICS
   BEHAVIOR
   BATIO3
   BATI0.65ZR0.35O3
   CONDUCTIVITY
   PEROVSKITES
   CHEMISTRY
Кл.слова (ненормированные):
Barium -- Dielectric properties -- Lanthanum -- Phase diagrams -- Polarization -- Thermal stress -- Zirconium -- Ceramic compositions -- Root mean squares -- Temperature ranges -- Temperature-dependent measurements -- Thermal expansion co-efficient -- Thermal-expansion properties -- Thermal expansion
Аннотация: The thermal expansion properties of the ceramic compositions Ba1-yLayTi1-y/4O3 (y = 0.0, 0.026, 0.036, 0.054) and Ba1-yBi2y/3Ti1-xZrxO3 (y = 0.10; x = 0.0, 0.04, 0.05, 0.10, 0.15) were determined in the temperature range 120-700 K. We report the temperature- dependent measurements of the strain, thermal expansion coefficient and the magnitude of root mean square polarization. The results obtained are discussed together with the data on the structure and dielectric properties.

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Держатели документа:
[Gorev, Michail
Bondarev, Vitaly
Flerov, Igor] Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Gorev, Michail
Bondarev, Vitaly
Flerov, Igor] Siberian Fed Univ, Inst Engn Phys, Krasnoyarsk 660041, Russia
[Maglione, Mario
Simon, Annie] Univ Bordeaux 1, ICMCB CNRS, F-33608 Pessac, France
[Sciau, Philippe] Univ Toulouse, CEMES CNRS, F-31055 Toulouse, France
[Boulos, Madona
Guillemet-Fritsch, Sophie] Univ Toulouse, CIRIMAT CNRS UPS INPT, F-31062 Toulouse, France
ИФ СО РАН
L v Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Engineering Physics, Siberian Federal University, av. Svobodny 79, Krasnoyarsk, 660041, Russian Federation
ICMCB-CNRS, Universite de Bordeaux i, 87 avenue A Schweitzer, 33608 Pessac, France
CEMES-CNRS, Universite de Toulouse, 29 rue Jeanne Marvig, 31055 Toulouse, France
CIRIMAT CNRS/UPS/INPT, Universite de Toulouse, Batiment 2R1, 118 route de Narbonne, 31062 Toulouse, France

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Flerov, I. N.; Флёров, Игорь Николаевич; Maglione, M.; Simon, A.; Sciau, P.; Boulos, M.; Guillemet-Fritsch, S.; Russian Foundation for Basic Research [07-02-00069]; Council on Grants from the President of the Russian Federation for Support of Leading Scientific Schools [NSh-1011.2008.2]
}
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Temperature-dependent Raman spectroscopy, domain morphology and photoluminescence studies in lead-free BCZT ceramic / I. Coondoo, N. Panwar, S. Krylova [et al.] // Ceram. Int. - 2021. - Vol. 47, Is. 2. - P. 2828-2838, DOI 10.1016/j.ceramint.2020.09.137. - Cited References: 65. - I.C. would like to thank financial assistance by national funds (OE), through FCT – Fundação para a Ciência e a Tecnologia, I.P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19. This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020, financed by national funds through the Portuguese Foundation for Science and Technology / MCTES . The authors would also like to acknowledge the Ural Center for Shared Use “Modern nanotechnology”, Ural Federal University, Russia and the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center “Krasnoyarsk Science Center SB RAS”. The authors would like to thank Dr. E. Venkata Ramana, Department of Physics, University of Aveiro for the dielectric measurements. The work was supported by Government of the Russian Federation (Act 211, 440 Agreement 02.A03.21.0006) . - ISSN 0272-8842
Кл.слова (ненормированные):
Lead-free ceramics -- Raman spectroscopy -- Domain morphology -- Photoluminescence
Аннотация: Present work focuses on detailed temperature-dependent X-ray diffraction, Raman scattering, domain configuration, and photoluminescence (PL) studies in the (Ba0·85Ca0.15) (Zr0·10Ti0.90)O3 (BCZT) ceramics. The comprehensive Raman spectroscopy analysis in the present work not only validates the presence of the intermediate orthorhombic phase in BCZT, but also provides evidence of another transition: rhombohedral R3c phase to R3m at low temperature. Temperature behaviour of the lowest frequency transverse optical mode (soft E (TO) phonon) and hard modes was studied. Temperature dependence of peak positions, intensities, and linewidths of Raman phonon modes signalled the presence of phase transitions near −50 ± 5 °C, 0±5 °C, 35±5 °C and 110 ± 10 °C. Evolution of domain morphology occurring at phase transitions above room temperature was studied by piezoresponse force microscopy technique. Analysis of PL spectra revealed disorder/heterogeneity in the sample and indicated the existence of self-trapped excitons. PL spectra are composed of four distinct colour components (~2.55eV:blue, ~2.32eV:green, ~2.08eV:orange and ~1.78eV:red).

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Держатели документа:
Department of Physics & CICECO – Aveiro Institute of Materials, University of Aveiro, Aveiro, 3810-193, Portugal
Department of Physics, Central University of Rajasthan, BandarsindriRajasthan 305817, India
Laboratory of Molecular Spectroscopy, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk660036, Russian Federation
School of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg620026, Russian Federation
I3N-Aveiro, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal

Доп.точки доступа:
Coondoo, I.; Panwar, N.; Krylova, S. N.; Крылова, Светлана Николаевна; Krylov, A. S.; Крылов, Александр Сергеевич; Alikin, D.; Jakka, S. K.; Turygin, A.; Shur, V. Y.; Kholkin, A. L.
}
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    Systematic experimental investigation of filtration losses of drilling fluids containing silicon oxide nanoparticles / A. V. Minakov [et al.] // J. Nat. Gas Sci. Eng. - 2019. - Vol. 71. - Ст. 102984, DOI 10.1016/j.jngse.2019.102984. - Cited References: 28. - The research was performed with the financial support of the Russian Science Foundation under project No. 17-79-20218. . - ISSN 1875-5100
   Перевод заглавия: Систематическое экспериментальное исследование фильтрационных потерь буровых растворов, содержащих наночастицы оксида кремния
Кл.слова (ненормированные):
Drilling fluid -- Nanoparticles -- Microsuspension -- Filtration loss -- Permeability -- Porous medium -- Ceramic filter
Аннотация: This paper presents the results of silicon oxide nanoparticles-incorporated drilling fluid filtration through a porous medium with different permeability. A water-based clay suspension was used as a basic model for creating investigated fluid samples. AlN (aluminium nitride) particles were used as a dispersed phase. The concentration of microparticles varied from 0.5 to 4.00 wt%, while the microparticles size varied from 1 to 10 ?m. The concentration of SiO2 nanoparticles was changed within the range of 0.25 and 4.00 wt%, while the nanoparticles size varied from 5 to 100 nm. It was shown that filtration of drilling fluids with nanoparticles inclusions depends on their concentration, size and material, the concentration and size of microparticles and the pore sizes of ceramic filters. The addition of the nanoparticles leads to a significant reduction in filtration of a microsuspension and affects the structure and thickness of a cake formed on the surface of a filter. The main novelty of this work lies in the fact that the effect of the addition of nanoparticles on filtration losses depends on the ratio between nano and microparticles. It was shown that the positive effect of nanoparticle additives on filtration losses is determined not only by the properties of nanoparticles (size and concentration), but also by the properties of microparticles contained in the drilling fluid, as well as the characteristics of the rock (pore size). © 2019 Elsevier B.V.

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Держатели документа:
Siberian Federal University, 79 Svobodny Prospect, Krasnoyarsk, 660041, Russian Federation
Kutateladze Institute of Thermophysics, SB RAS, 1 Academica Lavrentyeva Prospect, Novosibirsk, 630090, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC Siberian Branch Russian Academy of Sciences, 50/38 Academgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Minakov, A. V.; Mikhienkova, E. I.; Voronenkova, Y. O.; Neverov, A. L.; Zeer, G. M.; Zharkov, S. M.; Жарков, Сергей Михайлович
}
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    Synthesis, crystal structure, and enhanced luminescence of garnet-type Ca3Ga2Ge3O12:Cr3+ by codoping Bi3+ / C. Y. Liu [et al.] // J. Am. Ceram. Soc. - 2015. - Vol. 98, Is. 6. - P. 1870-1876, DOI 10.1111/jace.13553. - Cited References:24. - This work was supported by the National Natural Science Foundations of China (grant nos. 51002146, 51272242), Natural Science Foundations of Beijing (2132050), the Program for New Century Excellent Talents in University of Ministry of Education of China (NCET-12-0950), Beijing Nova Program (Z131103000413047), Beijing Youth Excellent Talent Program (YETP0635), the Funds of the State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University (KF201306) and Fundamental Research Funds for the Central Universities (FRF-TP-14-005A1). . - ISSN 0002. - ISSN 1551-2916
   Перевод заглавия: Синтез, кристаллическая структура и улучшенная люминесценция граната Ca3Ga2Ge3O12:Cr3+ содопированного Bi3+

РУБ Materials Science, Ceramics
Рубрики:
LIGHT-EMITTING-DIODES
   INFRARED PERSISTENT LUMINESCENCE
   ENERGY-TRANSFER
   PHOSPHOR
   RED
   NANOPARTICLES
   EFFICIENCY
Аннотация: Garnet-type compound Ca3Ga2Ge3O12 and Cr3+-doped or Cr3+/Bi3+ codped Ca3Ga2Ge3O12 phosphors were prepared by a solid-state reaction. The crystal structure of Ca3Ga2Ge3O12 host was studied by X-ray diffraction (XRD) analysis and further determined by the Rietveld refinement. Near-infrared (NIR) photoluminescence (PL) and long-lasting phosphorescence (LLP) emission can be observed from the Cr3+-doped Ca3Ga2Ge3O12 sample, and the enhanced NIR PL emission intensity and LLP decay time can be realized in Cr3+/Bi3+ codped samples. The optimum concentration of Cr3+ in Ca3Ga2Ge3O12 phosphor was about 6 mol%, and optimum Bi3+ concentration induced the energy-transfer (ET) process between Bi3+ and Cr3+ ions was about 30 mol%. Under different excitation wavelength from 280 to 453 nm, all the samples exhibit a broadband emission peaking at 739 nm and the intensity of NIR emission increases owing to the ET behavior from Bi3+ to Cr3+ ions. The critical ET distance has been calculated by the concentration-quenching method. The thermally stable luminescence properties were also studied and the introduction of Bi3+ can also improve the thermal stability of the NIR emission.

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Держатели документа:
Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China.
China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China.
SB RAS, LV Kirensky Phys Inst, Lab Crystal Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Liu, Chengyin; Xia, Zhiguo; Molokeev, M. S.; Молокеев, Максим Сергеевич; Liu, Quanlin
}
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Synthesis and optical properties RE2O2S:Ln (RE = La, Y; Ln = Ce, Eu, Dy, Er) / E. I. Sal'nikova [et al.] // J. Solid State Chem. - 2019. - Vol. 279. - Ст. 120964, DOI 10.1016/j.jssc.2019.120964. - Cited References: 53 . - ISSN 0022-4596
Кл.слова (ненормированные):
Oxysulfides -- Sulfates -- Rare-earth -- Reduction -- Optical ceramic -- Luminescence
Аннотация: The phase formation sequence was studied in the preparation of solid solutions of RE2O2S: Ln’ (RE = La, Y; Ln’ = Ce, Eu, Dy, Er) by the reduction of the match co-precipitated sulfates, followed by sulfidization of the reduction products. For uniform distribution of cations in the matrix, a method of chemical homogenization was used, consisting in the preparation of an aqueous solution containing all the necessary cations and their subsequent precipitation in the form of sulfates. The use of sulfates as precursors facilitates the process of obtaining solid solutions of oxysulfides, since sulfates already contain SO4 2--ions. The phase and morphological certification of the obtained solid solutions was carried out. The study of steady state luminescent properties demonstrated characteristic bands which are assigned to 4f-4f and 5d-4f transition. The obtained results showed the possibility of applying the method to synthesize optical ceramics based on solid solutionsRE2O2S: Ln (RE = La, Y; Ln = Ce, Eu, Dy, Er).

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Держатели документа:
Department of Inorganic and Physical Chemistry, Tyumen State University, Tyumen, 625003, Russian Federation
Department of General Chemistry, Northern Trans-Ural Agricultural University, Tyumen, 625003, Russian Federation
Department of General and Special Chemistry, Industrial University of Tyumen, Tyumen, 625000, Russian Federation
Laboratory of Coherent Optics, Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Center for Optical and Laser Materials Research, St. Petersburg State University, St. Petersburg, 199034, Russian Federation
Department of Physics, Lappeenranta University of Technology LUT, Lappeenranta, 53850, Finland

Доп.точки доступа:
Sal'nikova, E. I.; Denisenko, Y.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Kolesnikov, I. E.; Lahderanta, E.; Andreev, P. O.; Azarapin, N. O.; Andreev, O. V.; Basova, S. A.; Matigorov, A. V.
}
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Superconductivity near liquid nitrogen temperature in the Sn-Ba-Sr-Y-Cu-O system / K. S. Aleksandrov [et al.] // Physica C-Superconductivity and its Applications. - 1989. - Vol. 161, Is. 4. - P. 493-496, DOI 10.1016/0921-4534(89)90087-7 . - ISSN 0921-4534
Кл.слова (ненормированные):
Ceramic Materials -- Tin Compounds -- Bulk Superconductivity -- High Temperature Superconductors -- Oxide Superconductors -- Tin Barium Strontium Yttrium Copper Oxide -- Superconducting Materials
Аннотация: A high-Tc phase was found in the Sn-Ba-Sr-Y-Cu-O system. DC susceptibility data of Sn2Ba2Sr0.5Y0.5Cu3Ox show a single transition to bulk superconductivity with an onset temperature of 86 K. В© 1989.

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Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Khrustalev, B. P.; Хрусталев, Борис Петрович; Krivomazov, S. N.; Петров, Михаил Иванович; Petrov, M. I.; Vasilyev, A. D.; Zwegintsev, S. A.
}
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Superconducting ceramic coating obtained by plasma spraying / K. S. Aleksandrov [et al.] // Zhurnal Tek. Fiz. - 1989. - Vol. 59, Is. 8. - P. 157-159. - Cited References: 3 . - ISSN 0044-4642

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Публикация на русском языке Сверхпроводящие керамические покрытия, полученные плазменным напылением [Текст] / К. С. Александров [и др.] // Журнал технической физики. - 1989. - Т. 59 Вып. 8. - С. 157-159

Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Zvegintsev, A. G.; Lepeshev, A. A.; Петров, Михаил Иванович; Petrov, M. I.; Khabarov, V. I.; Khrustalev, B. P.; Хрусталев, Борис Петрович
}
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10.

Study of dependence upon the magnetic field and transport current of the magnetoresistive effect in YBCO-based bulk composites / D. A. Balaev [et al.] // Supercond. Sci. Technol. - 2007. - Vol. 20, Is. 6. - P. 495-499, DOI 10.1088/0953-2048/20/6/002. - Cited References: 25 . - ISSN 0953-2048

РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
CERAMIC SUPERCONDUCTORS
   DISSIPATION
   TRANSITION
   SENSORS
   MOTION
   FILMS
Кл.слова (ненормированные):
Current voltage characteristics -- Lorentz force -- Magnetic field effects -- Magnetic flux -- Magnetic sensors -- Magnetoresistance -- Intergrain boundaries -- Magnetic field sensor devices -- Magnetoresistance curves -- Magnetoresistive properties -- Yttrium barium copper oxides
Аннотация: The magnetoresistive properties of bulk YBCO + CuO and YBCO + BaPb0.75Sn0.25O3 composites for different orientations of external magnetic field H and macroscopic transport current j have been measured. These composites exhibit large magnetoresistance in weak magnetic fields (< 100 Oe), which makes them promising candidates for practical application in magnetic field sensor devices. The difference between.( T) dependences, magnetoresistance curves R( H) and current - voltage characteristics measured for H parallel to j and H || j is observed indicating the presence of the Lorentz- force- dependent dissipation in the composites. Angular dependences of magnetoresistance R(theta) ( where theta = angle H, j) of the composites in weak magnetic fields are found to be proportional to sin(2)theta. This fact suggests that the flux flow in the intergrain boundaries is responsible for the large magnetoresistive effect observed in the composites.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Prus, A. G.; Shaykhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Petrov, M. I.; Петров, Михаил Иванович
}
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11.

Ovchinnikov, S. G.
Quasi-particle spectrum in copper oxides / S. G. Ovchinnikov, G. A. Petrakovsky // J. Supercond. - 1991. - Vol. 4, Is. 6. - P. 437-448, DOI 10.1007/BF00635862. - Cited References: 0 . - ISSN 0896-1107

РУБ Physics, Applied + Physics, Condensed Matter

Кл.слова (ненормированные):
ELECTRON CORRELATIONS -- ELECTRON ENERGY STRUCTURE -- COPPER OXIDE -- PHOTOEMISSION DATA -- copper oxide -- Electron correlations -- electron energy structure -- photoemission data -- Ceramic Materials -- Lanthanum Compounds -- Fermi Liquid -- Lanthanum Strontium Copper Oxides -- Oxide Superconductors -- Quasi Particles -- High Temperature Superconductors
Аннотация: The results of electronic structure calculations of the CuO2 layer, performed by the generalized tight-binding method, are presented. The strong electron correlations on both the Cu and O ions are included explicitly. The resulting quasiparticle band structure contains an insulator gap for undoped compounds like La2CuO4. The valence band consists of a large number of narrow Hubbard quasiparticle bands. The dispersion law of quasiparticles at the top of the valence band has a minimum at the GAMMA-point, indicating the existence of the multivalley Fermi surface in the doped La2-xSrxCuO4. The origin of the Fermi liquid behavior in the narrow quasiparticle bands is discussed.

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Держатели документа:
L. V. Kirensky Institute of Physics, Siberian Department of the USSR Academy of Sciences, Krasnoyarsk, 660036, Russia

Доп.точки доступа:
Petrakovsky, G. A.; Петраковский, Герман Антонович; Овчинников, Сергей Геннадьевич
}
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12.

    Preparation, structure, and up-conversion luminescence of Yb3+/Er3+ codoped SrIn2O4 phosphors / M. Guan [et al.] // J. Am. Ceram. Soc. - 2015. - Vol. 98, Is. 4. - P. 1182-1187, DOI 10.1111/jace.13415. - Cited References:26. - This present work was supported by the National Natural Science Foundations of China (grant no. 51202226), the Fundamental Research Funds for the Central Universities (grant nos. 292014125,2652013128, 2652013043), and the Research Fund for the Doctoral Program of Higher Education of China (grant no. 20130022110006). . - ISSN 0002. - ISSN 1551-2916
   Перевод заглавия: Синтез, структура и ап-конверсионная люминесценция SrIn2O4 допированного Yb3+/Er3+

РУБ Materials Science, Ceramics
Рубрики:
CORE-SHELL NANOPARTICLES
   DOPED CaIn2O4
   GREEN
   Er3+
   EMISSION
   GLASSES
Аннотация: SrIn2O4, which shows lower phonon energy than CaIn2O4, is not only a good photocatalyst but also can be an excellent up-conversion (UC) host to exhibits UC luminescence. In this work, Yb3+ and/or Er3+ doped SrIn2O4 phosphors were synthesized, and their UC luminescence properties were studied and compared with those in the CaIn2O4 host. The structure of SrIn2O4: 0.01Er3+ and SrIn2O4: 0.1Yb3+/0.01Er3+ samples were refined by the Rietveld method and found to that SrIn2O4: 0.1Yb3+/0.01Er3+ showed increasing unit cell parameters and cell volume, indicating In3+ sites were substituted successfully by Yb3+ and/or Er3+ ions. From the UC luminescence spectra and diffuse reflection spectra, Er3+-doped SrIn2O4 showed very weak luminescence due to ground state absorption of Er3+; Yb3+/Er3+ codoped SrIn2O4 presented strong green (550 nm) and red (663 nm) UC emissions which were assigned to energy transfer from Yb3+ transition 2F7/2→2F5/2 to the Er3+ transition 4S3/2 → 4I15/2 and 4F9/2 → 4I15/2. Comparing with CaIn2O4, Yb3+/Er3+ codoped SrIn2O4 showed obvious advantages with higher UC luminescent intensity. The pumping powers study showed that UC emissions in Yb3+/Er3+ codoped SrIn2O4 were attributed to energy transfer of Yb3+→Er3+ with a two-photon process. The possible UC luminescent mechanism of Yb3+/Er3+-doped SrIn2O4 was discussed.

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Держатели документа:
China Univ Geosci, Sch Mat Sci & Technol, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Natl Lab Mineral Mat, Beijing 100083, Peoples R China
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia
Univ Auckland, Dept Chem & Mat Engn, Auckland 1142, New Zealand

Доп.точки доступа:
Guan, Ming; Zheng, Hong; Mei, Lefu; Molokeev, M. S.; Молокеев, Максим Сергеевич; Xie, Jing; Yang, Tao; Wu, Xiaowen; Huang, Saifang; Huang, Zhaohui
}
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13.

Preparation, microstructure, magnetic and transport properties of bulk textured Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x) and Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x)+Agceramics / M. I. Petrov [et al.] // Supercond. Sci. Technol. - 2008. - Vol. 21, Is. 10. - Ст. 105019, DOI 10.1088/0953-2048/21/10/105019. - Cited References: 22. - This work is supported by program of RAS 'Quantum macrophysics' No. 3.4 and integration project of SB RAS No. 3.4 and in part by Krasnoyarsk Regional Scientific Foundation (KRSF), Grants 17G057, 18G148 and 18G011. DAB and AAD acknowledge the Russian Science Support Foundation. . - ISSN 0953-2048

РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
HIGH-TEMPERATURE SUPERCONDUCTORS
   CRITICAL-CURRENT DENSITY
   BI-2223 TAPES
   BI2223
   SILVER
   DISCS
   (BI
Кл.слова (ненормированные):
Building materials -- Calcium -- Copper -- Crystallites -- Diamagnetic materials -- Lead -- Lead alloys -- Magnetic anisotropy -- Magnetic properties -- Nanocrystalline alloys -- Silver -- Textures -- Transport properties -- Bi-2223 -- Bulk samples -- Degree of textures -- Diamagnetic responses -- Liquid mediums -- Magnetic and transport properties -- Magnetic measurements -- Room temperatures -- Ceramic materials
Аннотация: A new method of preparation of bulk textured Bi2223 ceramics and Bi2223 + Ag composites, based on room temperature pressing of foamed precursor (Bi2223, Bi2223 + Ag) in a liquid medium, is proposed. SEM and XRD data prove a high degree of texture of the bulk samples obtained. Magnetic measurements performed in directions H parallel to c-axis and H parallel to a-b-planes of Bi2223 crystallites demonstrates anisotropy of magnetization confirming the texture of the ceramics. The materials obtained possess large diamagnetic response in the direction H parallel to a-b-planes of Bi2223 crystallites at both 77.4 and 4.2 K.

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Держатели документа:
[Petrov, M. I.
Shaikhutdinov, K. A.
Balaev, D. A.
Dubrovskii, A. A.
Popkov, S. I.
Vasil'ev, A. D.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Belozerova, I. L.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk, Russia
[Mart'yanov, O. N.] Boreskov Inst Catalysis, Novosibirsk 630090, Russia
ИФ СО РАН
Kirensky Institute of Physics, 660036, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Boreskov Institute of Catalysis, 630090, Novosibirsk, Russian Federation

Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович; Belozerova, I. L.; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Balaev, D. A.; Балаев, Дмитрий Александрович; Dubrovskii, A. A.; Дубровский, Андрей Александрович; Popkov, S. I.; Попков, Сергей Иванович; Vasil'ev, A. D.; Васильев, Александр Дмитриевич; Mart'yanov, O. N.
}
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14.

Piezoelectric properties of glassceramic based on lithium tetraborate / A. M. Sysoev [et al.] // Ferroelectrics. - 1996. - Vol. 186, Is. 1. - P. 277-280, DOI 10.1080/00150199608218083. - Cited References: 4 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter

Кл.слова (ненормированные):
Ceramic materials -- Crystal growth -- Dielectric properties -- Electroacoustic transducers -- Glass -- Hydrophones -- Lithium compounds -- Single crystals -- Acoustoelectric transducer -- Glass ceramic -- Lithium tetraborate -- Microcomposite materials -- Piezoelectric materials
Аннотация: The preparation and study of a glassceramic based on lithium tetraborate was carried out. It was shown that due to favourable piezoelectric properties this material has good prospects for use as acoustoelectric transducer in devices such as hydrophones.

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Sysoev, A. M.; Сысоев, Анатолий Михайлович; Parshikov, S. A.; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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15.

    Phase transformation in Ca3(PO4)2:Eu2+ via the controlled quenching and increased Eu2+ content: Identification of new cyan-emitting α-Ca3(PO4)2:Eu2+ phosphor / H. Ji [et al.] // J. Am. Ceram. Soc. - 2015. - Vol. 98, Is. 10. - P. 3280-3284, DOI 10.1111/jace.13787. - Cited References: 23. - This work was partly supported by the National Natural Science Foundations of China (grant nos. 51272242, 51472222, 51511130035), the Research Fund for the Doctoral Program of Higher Education of China (grant no. 20130022110006), and the Russian Foundation for Basic Research (grant no. 15-52-53080 GFEN_a). VVA was partly supported by the Ministry of Education and Science of the Russian Federation. . - ISSN 0002-7820
   Перевод заглавия: Фазовый переход в Ca3(PO4)2:Eu2+ посредством контролируемой закалки и увеличения концентрации Eu2+: Идентификация нового голубого люминофора α-Ca3(PO4)2:Eu2+

РУБ Materials Science, Ceramics
Рубрики:
NEUTRON POWDER DIFFRACTION
   SOLID-SOLUTION PHOSPHORS
   CRYSTAL-STRUCTURE
   DIODES
   PHOTOLUMINESCENCE
   LUMINESCENCE
   TRANSITION
   ALPHA
Аннотация: A case of phosphor is reported where the cooling rate parameter significantly influences the luminescence property. By quenching the sample after the higherature solid-state reaction at 1250°C, we successfully prepared the Eu2+-doped α form Ca3(PO4)2 (α-TCP:Eu2+) as a new kind of bright cyan-emitting phosphor. The unusual emission color variation (from cyan to blue) depends on the cooling rate after sintering and Eu2+ doping level as it was observed in the TCP-based phosphors. By the Rietveld analysis, it is revealed that the cyan- and blue-emitting phosphors are two different TCP forms crystallizing in the monoclinic (space group P21/a, α-TCP) and the rhombohedral structure (space group R3c, β-TCP), respectively. Upon 365 nm UV light excitation, α-TCP:Eu2+ exhibits an asymmetric broad-band cyan emission peaking at 480 nm, while β-TCP:Eu2+ displays a relatively narrow-band blue emission peaking at 416 nm. The Eu2+-doping in Ca3(PO4)2 shifts the upper temperature limit of the stable structural range of β form from 1125°C to ≥1250°C. Moreover, the crystal structures of α/β-TCP:Eu2+ were compared in the aspects of compactness and cation site sets. The emission thermal stability of α/β-TCP:Eu2+ was comparatively characterized and the difference was related to the specific host structural features. © 2015 The American Ceramic Society.

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Держатели документа:
School of Materials Science and Technology, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, China University of Geosciences, Beijing, China
School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, Russian Federation
Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russian Federation
Functional Electronics Laboratory, Tomsk State University, Tomsk, Russian Federation
Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk, Russian Federation

Доп.точки доступа:
Ji, H.; Huang, Z.; Xia, Zhiguo; Molokeev, M. S.; Молокеев, Максим Сергеевич; Chen, M.; Atuchin, V. V.; Fang, M.; Liu, Y.; Wu, Xiaowen
}
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16.

Peculiarities of the resistive state of the (Y,Lu)1Ba2Cu3O7-δ superconducting ceramics / K. S. Aleksandrov [et al.] // Physica C. - 1988. - Vol. 156, Is. 2. - P. 249-250 . - ISSN 0921-4534
Кл.слова (ненормированные):
Ceramic Materials -- Oxides -- Current Voltage Characteristics -- Yttrium Barium Copper Oxides -- Superconducting Materials
Аннотация: The resistive state of the high-Tc superconducting ceramics (Y, Lu)1Ba2Cu3O7-δ has been investigated, a hysteresis instability has been discovered in the current-voltage characteristics (CVC) under a current density j ≈ 1.7 kA cm-2. © 1988.

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Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Vasilyev, A. D.; Васильев, Александр Дмитриевич; Zwegintsev, S. A.; Звегинцев, Сергей Анатольевич; Петров, Михаил Иванович; Petrov, M. I.; Khrustalev, B. P.; Хрусталев, Борис Петрович
}
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17.

Order–disorder transition in the Dy0.2Sr0.8CoO3-δ rare-earth cobalt oxide solid solutions: Structural and thermoelectric properties / Y. S. Orlov, V. A. Dudnikov, S. N. Vereshchagin [et al.] // J. Eur. Ceram. Soc. - 2020. - Vol. 40, Is. 15. - P. 5559-5565, DOI 10.1016/j.jeurceramsoc.2020.06.066. - Cited References: 29. - This study was supported by the Russian Science Foundation, project no. 19-72-00097 . - ISSN 0955-2219
Кл.слова (ненормированные):
Substituted rare-earth cobalt oxides -- Thermoelectric oxide materials -- Ordered and disordered states -- Phase transition
Аннотация: By the example of the Dy0.2Sr0.8CoO3-δ compound undergoing an order–disorder phase transition with increasing temperature, we demonstrate a significant dependence of the kinetic properties on the morphology of the internal spatially inhomogeneous structure, which forms in the sample depending on the rate of its transition from the high-temperature disordered cubic phase to the ground tetragonal ordered phase upon cooling. The results of transmission electron microscopy visualization of the spatially inhomogeneous state in the Dy0.2Sr0.8CoO3-δ ceramic samples are presented and compared with the X-ray diffraction data.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Lebedev Physical Institute, Moscow, 119991, Russian Federation

Доп.точки доступа:
Orlov, Yu. S.; Орлов, Юрий Сергеевич; Dudnikov, V. A.; Дудников, Вячеслав Анатольевич; Vereshchagin, S. N.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Gavrilkin, S. Y.; Tsvetkov, A. Y.
}
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18.

    Microwave sol–gel synthesis of CaGd2(MoO4)4:Er3+/Yb3+ phosphors and their upconversion photoluminescence properties / C. S. Lim [et al.] // J. Am. Ceram. Soc. - 2015. - Vol. 98, Is. 10. - P. 3223-3230, DOI 10.1111/jace.13739. - Cited References:69. - This study was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2014-046024). VVA and ASA are partially supported by the Ministry of Education and Science of the Russian Federation. . - ISSN 0002. - ISSN 1551-2916
   Перевод заглавия: Микроволновый золь-гель синтез люминофоров CaGd2(MoO4)4:Er3+/Yb3+ и их люминесцентные свойства с апконверсией

РУБ Materials Science, Ceramics
Рубрики:
RED-EMITTING PHOSPHORS
   VIBRATIONAL PROPERTIES
   LUMINESCENCE PROPERTIES
   WHITE LEDS
   SPECTROSCOPIC PROPERTIES
   HYDROTHERMAL SYNTHESIS
   CRYSTAL-STRUCTURE
   ROOM-TEMPERATURE
   ENERGY-TRANSFER
   SR
Аннотация: CaGd2(MoO4)4:Er3+/Yb3+ phosphors with the doping concentrations of Er3+ and Yb3+ (x = Er3+ + Yb3+, Er3+ = 0.05, 0.1, 0.2, and Yb3+ = 0.2, 0.45) have been successfully synthesized by the microwave sol–gel method, and the crystal structure refinement and upconversion photoluminescence properties have been investigated. The synthesized particles, being formed after heat-treatment at 900°C for 16 h, showed a well-crystallized morphology. Under the excitation at 980 nm, CaGd2(MoO4)4:Er3+/Yb3+ particles exhibited strong 525 and 550-nm emission bands in the green region and a weak 655-nm emission band in the red region. The Raman spectrum of undoped CaGd2(MoO4)4 revealed about 15 narrow lines. The strongest band observed at 903 cm−1 was assigned to the ν1 symmetric stretching vibration of MoO4 tetrahedrons. The spectra of the samples doped with Er and Yb obtained under 514.5 nm excitation were dominated by Er3+ luminescence preventing the recording Raman spectra of these samples. Concentration quenching of the erbium luminescence at 2H11/2→4I15/2 and 4S3/2→4I15/2 transitions in the CaGd2(MoO4)4:Er3+/Yb3+ crystal structure was established to be approximately at the 10 at.% doping level.

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Держатели документа:
Hanseo Univ, Dept Adv Mat Sci & Engn, Seosan 356706, South Korea.
SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia.
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia.
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia.
SB RAS, Kirensky Inst Phys, Lab Coherent Opt, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
SB RAS, Kirensky Inst Phys, Lab Mol Spect, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Lim, Chang Sung; Atuchin, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич
}
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19.

    Microstructure and phase composition of the two-phase ceramic synthesized from titanium oxide and zinc oxide / G. M. Zeer [et al.] // Sci. Sinter. - 2018. - Vol. 50, Is. 2. - P. 173-181, DOI 10.2298/SOS1802173Z. - Cited References: 22 . - ISSN 0350-820X
   Перевод заглавия: Микроструктура и фазовый состав двухфазной керамики, синтезированной из оксидов титана и цинка
Кл.слова (ненормированные):
Nanopowders -- Titanium oxide -- Zinc oxide -- Solid phase reaction -- Ceramic
Аннотация: We have made investigations of the phase formation and microstructure on the ceramics obtained from a starting nanopowder mixture with the weight ratio ZnO : TiO2 = 4 : 1. Ceramic is obtained at different sintering temperatures, namely, 948, 1223 and 1473 К. Using the characterization methods of electron microscopy, energy dispersive microanalysis and X-ray diffraction phase analysis it has been shown that the ceramics structure is consisted of two dispersed phases of Zn2TiO4 and ZnO with the grain sizes being in range 0,5-1 μm. It has been found also that, at ceramic`s sintering temperature of 1223 К, the solid phase interactions are completed with the structure ZnO : Zn2TiO4 ≈ 1 : 1,5 phase ratio.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, 660014, Russian Federation

Доп.точки доступа:
Zeer, G. M.; Zelenkova, E. G.; Nikolaeva, N. S.; Zharkov, S. M.; Жарков, Сергей Михайлович; Abkaryan, A. K.; Mikheev, A. A.
}
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20.

Magnetoresistive effect in bulk composites 1-2-3 YBCO+CuO and 1-2-3 YBCO+BaPb(1-x)SnxO(3) and their application as magnetic field sensors at 77 K / D. A. Balaev [et al.] // Supercond. Sci. Technol. - 2004. - Vol. 17, Is. 1. - P. 175-181, DOI 10.1088/0953-2048/17/1/031. - Cited References: 27 . - ISSN 0953-2048

РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
PHASE-SLIP
   SUPERCONDUCTOR
   TEMPERATURE
   YBA2CU3O7-DELTA
   TRANSITION
Кл.слова (ненормированные):
Ceramic materials -- Composite materials -- Critical current density (superconductivity) -- High temperature operations -- High temperature superconductors -- Lead compounds -- Magnetoresistance -- Sensors -- Yttrium barium copper oxides -- High temperature superconductor ceramics -- Magnetic field sensors -- Magnetoresistive effect -- Transport current density -- Oxide superconductors
Аннотация: We have studied the magnetoresistive effect in bulk 1-2-3 YBCO + CuO and 1-2-3 YBCO + BaPb1-xSnxO3 composites prepared using the fast backing technique. We have found that the composites exhibit large magnetoresistance in low magnetic fields (< 100 Oe) for a broad temperature range. We have studied the experimental dependences of resistivity versus magnetic field at various transport current densities. The high-T-C superconductor (HTSC) based composites exhibit a much higher sensitivity to weak magnetic fields at liquid nitrogen temperature, compared to that for pure HTSC ceramics. This effect is attractive for practical applications and the composite materials can be used as active elements in magnetic field sensor devices.

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LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
Kirensky Inst of Physics, 660036, Krasnoyarsk, Russian Federation
RSSAU, Krasnoyarsk 660014, Russian Federation

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Shaihutdinov, K. A.; Popkov, S. I.; Попков, Сергей Иванович; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Petrov, M. I.; Петров, Михаил Иванович
}
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