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Труды сотрудников ИФ СО РАН

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Reflection and refraction of bulk acoustic waves in piezoelectric crystals under the action of bias electric field and uniaxial pressure / S. I. Burkov [et al.] // Proceedings - IEEE Ultrasonics Symposium. - 2008. - Ст. 4803254. - P. 2161-2164, DOI 10.1109/ULTSYM.2008.0535 . - ISBN 1051-0117
Кл.слова (ненормированные):
Bias electric field -- Bulk elastic wave -- Mechanical stress -- Piezoelectric crystal -- Reflection -- Refraction -- Bias electric field -- Bulk acoustic waves -- Bulk elastic wave -- Mechanical stress -- Piezoelectric crystal -- Piezoelectric crystals -- Uniaxial pressures -- Acoustic wave reflection -- Acoustics -- Crystals -- Elastic waves -- Elasticity -- Electric field measurement -- Electric fields -- Piezoelectric materials -- Piezoelectric transducers -- Piezoelectricity -- Refraction -- Soil structure interactions -- Stresses
Аннотация: Main theory results concerned with bulk elastic wave reflection/refraction on the boundary between two piezoelectric crystals subjected to the action of bias electric field or mechanical stress have presented. Some calculations for LiNbO3 and Bi12GeO20 crystals have made. В©2008 IEEE.

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Burkov, S. I.; Sorokin, B. P.; Karpovich, A. A.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; IEEE International ultrasonics symposium(2008 ; Nov. ; 2-5 ; Beijing, China)
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Quantum stress in chaotic billiards / K. F. Berggren [et al.] // Phys. Rev. E. - 2008. - Vol. 77, Is. 6. - Ст. 66209, DOI 10.1103/PhysRevE.77.066209. - Cited References: 43 . - ISSN 1539-3755

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
MICROWAVE CAVITIES
   WAVE-FUNCTIONS
   STATISTICAL PROPERTIES
   SYSTEMS
   FIELDS
Кл.слова (ненормированные):
Computer networks -- Electric fields -- Electroacupuncture -- Electromagnetic field theory -- Electromagnetic fields -- Electromagnetism -- Function evaluation -- Functions -- Gaussian distribution -- Image segmentation -- Magnetism -- Mathematical models -- Microwaves -- Modal analysis -- Nematic liquid crystals -- Numerical analysis -- Random processes -- Stresses -- Tensors -- Trellis codes -- Two dimensional -- Wave functions -- Waves -- abiotic and biotic stress -- e ,2e theory -- p ,p ,t measurements -- American Physical Society (APS) -- Analytic expressions -- Current flowing -- Dinger equation -- Experimental studies -- Gaussian random fields -- net flows -- Plane waves -- Quantum billiards -- Quantum-mechanical (QM) -- Scattering wave functions -- Sinai billiard (SB) -- Statistical distributions -- Stress tensors -- Two-dimensional (2D) -- Chaotic systems
Аннотация: This paper reports on a joint theoretical and experimental study of the Pauli quantum-mechanical stress tensor T(alpha beta)(x,y) for open two-dimensional chaotic billiards. In the case of a finite current flow through the system the interior wave function is expressed as psi=u + iv. With the assumption that u and v are Gaussian random fields we derive analytic expressions for the statistical distributions for the quantum stress tensor components T(alpha beta). The Gaussian random field model is tested for a Sinai billiard with two opposite leads by analyzing the scattering wave functions obtained numerically from the corresponding Schrodinger equation. Two-dimensional quantum billiards may be emulated from planar microwave analogs. Hence we report on microwave measurements for an open two-dimensional cavity and how the quantum stress tensor analog is extracted from the recorded electric field. The agreement with the theoretical predictions for the distributions for T(alpha beta)(x,y) is quite satisfactory for small net currents. However, a distinct difference between experiments and theory is observed at higher net flow, which could be explained using a Gaussian random field, where the net current was taken into account by an additional plane wave with a preferential direction and amplitude.

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Держатели документа:
[Berggren, Karl-Fredrik
Sadreev, Almas F.] Linkoping Univ, IFM Theory & Modeling, S-58183 Linkoping, Sweden
[Maksimov, Dmitrii N.
Sadreev, Almas F.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Hoehmann, Ruven
Kuhl, Ulrich
Stoeckmann, Hans-Joergen] Univ Marburg, Fachbereich Phys, AG Quantenchaos, D-35032 Marburg, Germany
ИФ СО РАН
IFM-Theory and Modeling, Linkoping University, S-581 83 Linkoping, Sweden
L.V. Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation
AG Quantenchaos, Fachbereich Physik der Philipps-Universitat Marburg, Renthof 5, D-35032 Marburg, Germany

Доп.точки доступа:
Berggren, K. F.; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Hohmann, R.; Kuhl, U.; Stockmann, H. J.
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Belyaev, B. A.
Ferromagnetic resonance study of the effect of elastic stresses on the anisotropy of magnetic films / B. A. Belyaev, A. V. Izotov // Phys. Solid State. - 2007. - Vol. 49, Is. 9. - P. 1731-1739, DOI 10.1134/S106378340709020X. - Cited References: 16 . - ISSN 1063-7834

РУБ Physics, Condensed Matter

Аннотация: The distribution of the magnitude and direction of the uniaxial magnetic anisotropy field over the area of permalloy films obtained by thermal evaporation in vacuum was studied using a scanning ferromagnetic resonance spectrometer. The films were deposited on glass substrates subjected to bending stress in the presence of an in-plane static magnetic field. Depending on the character of the elastic-stress distribution over a local spot of a film, the uniaxial anisotropy induced by a magnetic field is either enhanced or completely compensated, which is accompanied by a significant change in the direction of the easy axis of magnetization. The observed effects are in good agreement with phenomenological calculations.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Izotov, A. V.; Изотов, Андрей Викторович; Беляев, Борис Афанасьевич
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Investigations of residual stresses in barium titanate pressed powder and their effects to the properties of the ferroelectric phase transition / I. V. Zaytseva [et al.] // Second International Workshop "Modern Nanotechnologie" (IWMN-2016) : abstact book / Урал. Фед. ун-т им. Первого Президента России Б. Н. Ельцина. - 2016. - Ст. O-22. - P. 47. - References: 3

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Доп.точки доступа:
Zaytseva, I. V.; Зайцева И. В.; Krylov, A. S.; Крылов, Александр Сергеевич; Pugachev, A. M.; Пугачев А. М.; Malinovsky, V. K.; Малиновский В. К.; "Modern Nanotechnologies", International Workshop(2 ; 2016 ; Aug. ; 27-29 ; Ekaterinburg); Уральский Федеральный университет им. Первого Президента России Б.Н. Ельцина
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Uniaxial mechanical stresses and their influence on the parameters of the ferroelectric phase transition in pressure-treated barium titanate / A. M. Pugachev [et al.] // Ferroelectrics. - 2017. - Vol. 508, Is. 1. - P. 161-166, DOI 10.1080/00150193.2017.1289769. - Cited References: 22 . - ISSN 0015-0193
Кл.слова (ненормированные):
BaTiO3 -- second harmonic generation -- residual mechanical stresses -- ferroelectric phase transition
Аннотация: The dependence of the E(TO) line in Raman spectrum of a BaTiO3 powder on applied uniaxial pressure up to 14 GPa are obtained and the values of residual mechanical stresses are evaluated. The second harmonic generation technique is used to obtain the width and temperature of the cubic-to-tetragonal phase transition in the powder treated by uniaxial pressures. The interrelations between the phase transition width, temperatures, and residual mechanical stresses are established. These interrelations differ from expectations based on known hydrostatic pressure-induced effects in BaTiO3.

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Держатели документа:
Institute of Automation and Electrometry RAS, Novosibirsk, Russian Federation
Novosibirsk State University, Novosibirsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
V. S. Sobolev Institute of Geology and Mineralogy RAS, Novosibirsk, Russian Federation

Доп.точки доступа:
Pugachev, A. M.; Zaytseva, I. V.; Krylov, A. S.; Крылов, Александр Сергеевич; Malinovsky, V. K.; Surovtsev, N. V.; Borzdov, Y. M.; Kovalevsky, V. I.
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Residual mechanical stresses in pressure treated BaTiO3 powder / I. V. Zaytseva [et al.] // Ceram. Int. - 2019. - Vol. 45, Is. 9. - P. 12455-12460, DOI 10.1016/j.ceramint.2019.03.179. - Cited References: 33. - The reported study was funded by RFBR according to the research projects No. 17-32-5009, 18-02-00399 and State assignment No AAAA-A17-117052410033-9. The experiments were performed in the multiple-access center "High-Resolution Spectroscopy of Gases and Condensed Matter" in IA&E SBRAS (Novosibirsk, Russia) and Center for Common Use of the Krasnoyarsk Scientific Center, SBRAS (Krasnoyarsk, Russia). . - ISSN 0272-8842. - ISSN 1873-3956

РУБ Materials Science, Ceramics
Рубрики:
DIELECTRIC-PROPERTIES
   PHASE-TRANSITION
   DIAMOND ANVILS
   RAMAN
Кл.слова (ненормированные):
Residual mechanical stress -- Raman spectroscopy -- High non-hydrostatic pressure -- Temperature treatment -- Residual pressure -- BaTiO3 ceramics
Аннотация: Here we present Raman spectroscopy approach to monitor the spatial distribution and the magnitude of the residual mechanical stresses in ceramic after non-hydrostatic pressure treatments. The residual pressure can be found from the E-phonon line shift (∼307 cm−1) in the Raman spectra. The relationship between the non-hydrostatic pressure (up to 11 GPa) and the shift of this line has been established. It is demonstrated that the change in the Raman line position (1332 cm−1) of the diamond anvil can be used for monitoring of applied non-hydrostatic pressures. A linear dependence of residual mechanical stresses on the applied pressures is found. Micro-Raman spectroscopy shows that the residual mechanical stresses are distributed fairly uniformly in the studied BaTiO3 samples at the micron scale. In the future, the proposed Raman technique can be used for monitoring the quality of produced BaTiO3 ceramics.

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Держатели документа:
RAS, Inst Automat & Electrometry SB, Novosibirsk 630090, Russia.
RAS, Kirensky Inst Phys Fed Res Ctr KSC SB, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Zaytseva, I. V.; Pugachev, A. M.; Okotrub, K. A.; Surovtsev, N. V.; Mikerin, S. L.; Krylov, A. S.; Крылов, Александр Сергеевич; RFBR [17-32-5009, 18-02-00399, AAAA-A17-117052410033-9]
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Low-temperature deformation and fracture of Cr-Mn-N stainless steel: Tensile and impact bending tests / N. Narkevich, I. Vlasov, M. Volochaev [et al.] // Metals. - 2023. - Vol. 13, Is. 1. - Ст. 95, DOI 10.3390/met13010095. - Cited References: 41. - The research was funded by RSF, project No. 22-29-00438. The low-temperature tensile tests were carried out in accordance with the state assignment for the ISPMS SB RAS, project No. FWRW-2021-0009 . - ISSN 2075-4701
Кл.слова (ненормированные):
high-nitrogen steel -- austenite -- tensile test -- impact bending test -- ductile-to-brittle transition -- internal stresses -- fracture
Аннотация: The paper presents the results of tensile and impact bending tests of 17%Cr-19%Mn-0.53%N high-nitrogen austenitic stainless steel in temperatures ranging from −196 to 20 °C. The steel microstructure and fracture surfaces were investigated using transmission and scanning electron microscopes, as well as X-ray diffraction analysis. The steel experiences a ductile-to-brittle transition (DBT); however, it possessed high tensile and impact strength characteristics, as well as the ductile fracture behavior at temperatures down to −114 °C. The correspondence between γ–ε microstructure and fracture surface morphologies was revealed after the tensile test at the temperature of −196 °C. In this case, the transgranular brittle and layered fracture surface was induced by ε-martensite formation. Under the impact bending test at −196 °C, the brittle intergranular fracture occurred at the elastic deflection stage without significant plastic strains, which preceded a failure due to the high internal stresses localized at the boundaries of the austenite grains. The stresses were induced by: (i) segregation of nitrogen atoms at the grain boundaries and in the near-boundary regions, (ii) quenching stresses, and (iii) reducing fcc lattice volume with the test temperature decrease and incorporation of nitrogen atoms into fcc austenite lattice. Anisotropy of residual stresses was revealed. This was manifested in the localization of elastic deformations of the fcc lattice and, consequently, the stress localization in <100>-oriented grains; this is suggested to be the reason of brittle cleavage fracture.

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Держатели документа:
Laboratory of Physical Mesomechanics of Materials and Non-Destructive Testing, Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055, Russian Federation
Kirensky Institute of Physics SB RAS, Krasnoyarsk, 660036, Russian Federation
Laboratory of Shape Memory Alloys, Institute of Strength Physics and Materials Science SB RAS, Tomsk, 634055, Russian Federation
School of Advanced Manufacturing Technologies, National Research Tomsk Polytechnic University, Tomsk, 634030, Russian Federation
Department of Mechanical and Aerospace Engineering, SAPIENZA-Universita Di Roma, Roma, 00184, Italy

Доп.точки доступа:
Narkevich, N.; Vlasov, I.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Gomorova, Y.; Mironov, Y.; Panin, S.; Berto, F.; Maksimov, P.; Deryugin, E.
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Описание изобретения к патенту 2808391


    Устройство для создания контролируемых упругих напряжений в тонкой пленке, осажденной на подложку / А. А. Горчаковский, С. Д. Крёков, П. Н. Соловьев [и др.]. - № 2023116957 ; Заявл. 28.06.2023 ; Опубл. 28.11.2023 // Изобретения. Полезные модели : офиц. бюл. Фед. службы по интеллектуал. собственности (Роспатент). - 2023. - № 34
   Перевод заглавия: Device for creating controlled elastic stresses in thin film deposited on substrate
Аннотация: Изобретение относится к измерительной технике, а более конкретно к области исследования влияния механических напряжений на физические свойства тонких пленок и предназначено для создания упругих деформаций в тонкой пленке, осажденной на подложку. Подложка уложена на поперечную опору на верхней части основания и зафиксирована при помощиклеянадвухплощадках,расположенных в сквозных вырезах в основании на разных продольных расстояниях от опоры и передвигающихся вниз под действием рычагов. Рычаги расположены на нижней стороне устройства и соединены с площадками посредством цилиндрических ступенчатых тяг. Положение рычагов регулируется размещенными в них установочными винтами. Техничесим результатом заявляемого изобретения является повышение площади фиксации подложки на устройстве, исключение необходимости изготовления подложек с концами клиновидной формы и снижение технической сложности устройства. 4 ил.

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Держатели документа:
Институт физики им. Л. В. Киренского СО РАН

Доп.точки доступа:
Горчаковский, Александр Антонович; Крёков, Сергей Дмитриевич; Соловьев, Платон Николаевич; Solovev, P. N.; Изотов, Андрей Викторович; Izotov, A. V.; Бурлаков, Илья Евгеньевич; Боев, Никита Михайлович; Boev, N. M.; Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук"; Федеральная служба по интеллектуальной собственности (Роспатент); Федеральный институт промышленной собственности
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