Труды сотрудников института физики

/ S. V. Rashchenko [et al.] // Int. Ecologite Conf. : Abstract Vol. - 2013. - P. 104
   Перевод заглавия: Ячейка с алмазными наковальнями в петрологии высоких давлений: изучение мтаморфных реакций in situ

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Доп.точки доступа:
Rashchenko, S. V.; Likhacheva, A. Y.; Лихачева, Анна Юрьевна; Krylov, A. S.; Крылов, Александр Сергеевич; Mikhno, A. O.; International Eclogite Conference (10 ; 2013 ; Sept. ; 2-10 ; Courmayeur, Italy)

/ A. Korets [et al.] // EPJ Appl. Phys. - 2012. - Vol. 57, Is. 3. - Ст. 30701, DOI 10.1051/epjap/2012110208. - Cited References: 15 . - ISSN 1286-0042РУБ Physics, Applied

Аннотация: A diamond-containing material (DCM) produced by detonation was mechanically milled using KM-1 and AGO-2S mills. Experimental spectra for infrared (IR) absorption, Raman scattering and X-ray diffraction patterns (XRD) were obtained for the treated DCM samples. We compared the Raman and IR spectra for the KM-1 milled samples and concluded that the surface of the DCM particles was not uniform. The mechanical force that resulted from milling with the AGO-2S destroyed the non-diamond part of the particles and initiated irreversible physical and chemical changes in them. The destruction of the diamond grains was the consequence of these irreversible changes. It follows from the experiments that the dipole momentum of the DCM particle was caused by the presence of polar fragments of molecules. The constant dipole momentum of the particles facilitated the aggregation. Based on this, we proposed a model of a structurally inhomogeneous DCM particle. В© 2012 EDP Sciences.

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Держатели документа:
Siberian Federal University, 26, Kirensky Str., Krasnoyarsk 660074, Russian Federation
Institute of Physics, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Chemistry and Chemical Technology, KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Korets, A.; Krylov, A. S.; Крылов, Александр Сергеевич; Mironov, E.; Rabchevskii, E.

[Текст] / А. Я. Корец [и др.] // Изв. Кабардино-балкарского гос. ун-та. - 2014. - Т. 4, Вып. 3. - С. 74-78
   Перевод заглавия: Research into influence of continual thermal treatment on the detonation diamond-containing material
Аннотация: С целью исследования изменений, происходящих в структуре частиц, полученных в высокоэнергетических условиях взрыва, была произведена термообработка образцов детонационного алмазосодержащего материала в интервале так называемого «кислородного окна» 430 °С. Продолжительность термообработки изменялась от 0,5 часа до 48 часов. Были проведены эксперименты и проанализированы результаты ИК-поглощения, комбинационного рассеяния света, рентгеновской дифракции и динамического рассеяния света термообработанных образцов.
Thermal treatment of detonation diamond-containing material in the interval of so-called «oxygen window» 430 C to investigate changes in the structure of the particles obtained under explosion conditions was performed. The duration of the thermal treatment varied from 0.5 to 48 hours. Infrared and Raman experiments and data of X-Ray diffraction and dynamic light scattering of the treatment samples were carried out.

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

Доп.точки доступа:
Корец, Анатолий Яковлевич; Королькова, И. В.; Крылов, Александр Сергеевич; Krylov, A. S.; Миронов, Е. В.; Рабчевский, Е. В.

/ Y. V. Bataleva [et al.] // Russ. Geol. Geophys. - 2015. - Vol. 56, Is. 1-2. - P. 143-154, DOI 10.1016/j.rgg.2015.01.008. - Cited References:68. - This work was supported by Integration project 31 from the Siberian Branch of the Russian Academy of Sciences and by grant 12-05-00740 from the Russian Foundation for Basic Research. . - ISSN 1068. - ISSN 1878-030X. - РУБ Geosciences, Multidisciplinary

Аннотация: Experimental modeling of the processes of formation of ferric carbonate-silicate melts through the carbonate-oxide-metal interaction is performed in the (Mg,Ca)CO3-SiO2-Al2O3-Fe0 system at 6.3 and 7.5 GPa and within 1150-1650 °C, using a multianvil high-pressure apparatus of “split-sphere” type (BARS). Two parallel reactions run in the subsolidus region (1150-1450 °C): decarbonation, producing pyrope-almandine (Fe# = 0.40-0.75) and CO2 fluid, and redox interaction between carbonate and Fe0, resulting in the crystallization of iron carbide in assemblage with magnesiowustite (Fe# = 0.75-0.85). It is shown that the reduction of carbonate or CO2 fluid by iron carbide and parallel redox interaction of magnesiowustite with CO2 produce graphite in assemblage with Fe3 + -containing magnesiowustite. In the temperature range of 1450-1650 °C, generation of carbonate-silicate melts coexisting with pyrope-almandine, magnesiowustite, magnetite, ferrospinel, and graphite takes place. The composition of the produced melts is as follows: SiO2 - 10-15 wt.%, X(FeO + Fe2O3) = 36-43 wt.%, and Fe3+/XFe - 0.18-0.23. These Fe3 + -enriched carbonate-silicate melts/fluids are saturated with carbon and are the medium of graphite crystallization. Oxide and silicate phases (almandine, ferrospinel, and magnetite) coexisting with graphite are also characterized by high Fe3+/XFe values. It has been established that Fe3 + -enriched carbonate-silicate melts can result from the interaction of Fe0-containing rocks with carbonated rocks. In the reduced mantle (with the presence of iron carbides or oxides), melts of this composition can be the source of carbon and the medium of graphite crystallization at once. After separation and ascent, these ferric carbonate-silicate melts can favor oxidizing metasomatism in the lithospheric mantle.

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Держатели документа:
Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, Novosibirsk 630090, Russia.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Novosibirsk State Univ, Novosibirsk 630090, Russia.

Доп.точки доступа:
Bataleva, Yu. V.; Palyanov, Yu. N.; Sokol, A. G.; Borzdov, Yu. M.; Bayukov, O. A.; Баюков, Олег Артемьевич; Siberian Branch of the Russian Academy of Sciences [31]; Russian Foundation for Basic Research [12-05-00740]

/ S. V. Goryainov [et al.] // J. Raman Spectrosc. - 2015. - Vol. 46, Is. 1. - P. 177-181, DOI 10.1002/jrs.4614. - Cited References:30. - This work was partly supported by the Russian Foundation for BasicResearch (grants N 14-05-00616 and 13-05-00185) and the Ministry ofEducation and Science of the Russian Federation. . - ISSN 0377. - ISSN 1097-4555
   Перевод заглавия: Исследование датолита CaBSiO4(ОН) при одновременно высоком давлении и высокой температуре методом спектроскопии комбинационного светаРУБ Spectroscopy

Аннотация: Using an in situ method of Raman spectroscopy and resistance-heated diamond anvil cell, the system datolite CaBSiO4(OH) – water has been investigated at simultaneously high pressure and temperature (up to Р ~5 GPa and Т ~250 °С). Two polymorphic transitions have been observed: (1) pressure-induced phase transition or the feature in pressure dependence of Raman band wavenumbers at P = 2 GPа and constant T = 22 °С and (2) heating-induced phase transition at T ~90 °С and P ~5 GPа. The number of Raman bands is retained at the first transition but changed at the second transition. The first transition is mainly distinguished by the changes in the slopes of pressure dependence of Raman peaks at 2 GPa. The second transition is characterized by several strong changes: the wavenumber jumps of major bands, the merging of strong doublets at 378 and 391 cm−1 (values for ambient conditions), the splitting of the intermediate-intensity band at 292 cm−1, and the transformation of some low-wavenumber bands at 160–190 cm−1. No spectral and visual signs of overhydration and amorphization have been observed. No noticeable dissolution of datolite in the water medium occurred at 5 GPa and 250 °С after 3 h, which corresponds to typical conditions of the ‘cold’ zones of slab subduction. Copyright © 2014 John Wiley & Sons, Ltd.

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Держатели документа:
VS Sobolev Inst Geol & Mineral SB RAS, Novosibirsk 630090, Russia.
LV Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia.
Univ Saskatchewan, Dept Geol Sci, Saskatoon, SK S7N 5E2, Canada.

Доп.точки доступа:
Goryainov, S. V.; Krylov, A. S.; Крылов, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич; Pan, Y.; Russian Foundation for Basic Research [N 14-05-00616, 13-05-00185]; Ministry of Education and Science of the Russian Federation

/ Y. V. Bataleva [et al.] // Dokl. Earth Sci. - 2015. - Vol. 463, Is. 1. - P. 707-711, DOI 10.1134/S1028334X15070077. - This study was supported by the Russian Foundation for Basic Research (project no. 14-05-31061) and by the Council for Grants and Support of the Leading Scientific Schools of the President of the Russian Federation (NSh 2024.2014.5). . - ISSN 1028-334XРУБ Geosciences, Multidisciplinary

Аннотация: Experimental studies were performed in the Fe3C–S system at P = 6.3 GPa, T = 900–1600°C, and t = 18–20 h. The study aimed to characterize the conditions of iron carbide stability in a reduced lithospheric mantle and to reveal the possibility of the formation of elemental carbon by the interaction of iron carbide and sulfur. It was found that the reaction at T 1200°C proceeds with the formation of a pyrrhotite–graphite assemblage by the following scheme: 2Fe3C + 3S2 → 6FeS + 2C0. The crystallization of graphite at T 1200°C is accompanied by the generation of sulfide and metal–sulfide melts and via 2Fe3C + 3S2 → 6[Fe–S(melt) + Fe–S–C(melt)] + 2C(graphite)0 reaction. Resulting from the carbon-generating reactions, not only graphite crystallized in sulfide or metal–sulfide melts, but the growth of diamond also takes place. The obtained data allow one to consider cohenite as a potential source of carbon in the processes of diamond and graphite crystallization under the conditions of a reduced lithospheric mantle. The interaction of iron carbide and sulfur under which carbon extraction proceeds may be one of possible processes of the global carbon cycle. © 2015, Pleiades Publishing, Ltd

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Держатели документа:
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
Novosibirsk State University, Novosibirsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bataleva, Yu. V.; Palyanov, Yu. N.; Borzdov, Yu. M.; Bayukov, O. A.; Баюков, Олег Артемьевич; Sobolev, N. V.; Russian Foundation for Basic Research [14-05-31061]; Council for Grants and Support of the Leading Scientific Schools of the President of the Russian Federation [NSh 2024.2014.5]

/ Y. V. Bataleva [et al.] // Lithos. - 2016. - Vol. 244. - P. 20-29, DOI 10.1016/j.lithos.2015.12.001. - Cited References: 68. - This work was supported by the Russian Science Foundation under grant no. 14-27-00054. The authors thank A. Moskalev for his assistance in the work preparation, A. Khokhryakov for useful suggestions throughout the study, and S. Ovchinnikov for his assistance in implementation of Mössbauer spectroscopy measurements. The authors thank editor M. Scambelluri, and two anonymous reviewers for their useful comments, which helped to profoundly improve the manuscript. . - ISSN 0024-4937РУБ Geochemistry & Geophysics + Mineralogy

Аннотация: Experimental simulation of the interaction of wüstite with a CO2-rich fluid and a carbonate-silicate melt was performed using a multianvil high-pressure split-sphere apparatus in the FeO-MgO-CaO-SiO2-Al2O3-CO2 system at a pressure of 6.3GPa and temperatures in the range of 1150°C-1650°C and with run time of 20h. At relatively low temperatures, decarbonation reactions occur in the system to form iron-rich garnet (Alm75Prp17Grs8), magnesiowüstite (Mg#≤0.13), and CO2-rich fluid. Under these conditions, magnesiowüstite was found to be capable of partial reducing CO2 to C0 that leads to the formation of Fe3+-bearing magnesiowüstite, crystallization of magnetite and metastable graphite, and initial growth of diamond seeds. At T≥1450°C, an iron-rich carbonate-silicate melt (FeO~56wt.%, SiO2~12wt.%) forms in the system. Interaction between (Fe,Mg)O, SiO2, fluid and melt leads to oxidation of magnesiowüstite and crystallization of fayalite-magnetite spinel solid solution (1450°C) as well as to complete dissolution of magnesiowüstite in the carbonate-silicate melt (1550°C-1650°C). In the presence of both carbonate-silicate melt and CO2-rich fluid, dissolution (oxidation) of diamond and metastable graphite was found to occur. The study results demonstrate that under pressures of the lithospheric mantle in the presence of a CO2-rich fluid, wüstite/magnesiowüstite is stable only at relatively low temperatures when it is in the absolute excess relative to CO2-rich fluid. In this case, the redox reactions, which produce metastable graphite and diamond with concomitant partial oxidation of wüstite to magnetite, occur. Wüstite is unstable under high concentrations of a CO2-rich fluid as well as in the presence of a carbonate-silicate melt: it is either completely oxidized or dissolves in the melt or fluid phase, leading to the formation of Fe2+- and Fe3+-enriched carbonate-silicate melts, which are potential metasomatic agents in the lithospheric mantle. © 2015 Elsevier B.V.

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Держатели документа:
Sobolev Institute of Geology and Mineralogy, Siberian Branch of Russian Academy of Sciences, Koptyug ave 3, Novosibirsk, Russian Federation
Novosibirsk State University, Pirogova str 2, Novosibirsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Akademgorodok 50, bld. 38, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bataleva, Yu. V.; Palyanov, Y .N.; Sokol, A. G.; Borzdov, Y. M.; Bayukov, O. A.; Баюков, Олег Артемьевич

/ Y. V. Bataleva [et al.] // Russ. Geol. Geophys. - 2016. - Vol. 57, Is. 1 : Tectonics, geodynamics, and petrology of earth’s lithosphere and mantle (to the 80th birthday of Academician Nikolai Leontievich Dobretsov). - P. 176-189, DOI 10.1016/j.rgg.2016.01.012. - Cited References:55. - This work was supported by the Russian Science Foundation under Grant No. 14-27-00054. . - ISSN 1068-7971. - ISSN 1878-030XРУБ Geosciences, Multidisciplinary

Аннотация: To estimate conditions for the stability of iron carbide under oxidation conditions and to assess the possibility of formation of elemental carbon by interaction between iron carbide and oxides, experimental modeling of redox interaction in the systems Fe3C-Fe2O3 and Fe3C-Fe2O3-MgO-SiO2 was carried out on a split-sphere high-pressure multianvil apparatus at 6.3 GPa and 900-1600 degrees C for 18-20 h. During carbide-oxide interaction in the system Fe3C-Fe2O3, graphite crystallizes in assemblage with Fe3+-containing wusite. Graphite forms from carbide carbon mainly by cohenite oxidation: Fe3C + 3Fe(2)O(3) -> 9FeO + C-0 and FeO + Fe3C -> (Fe2+, Fe3+)O + C-0. At above-solidus temperatures (>= 1400 degrees C), when metal-carbon melt is oxidized by wusite, graphite and diamond crystallize by the redox mechanism and form the Fe3+-containing wstite + graphite/diamond assemblage. Interaction in the system Fe3C-Fe2O3-MgO-SiO2 results in the formation of Fe3+-containing mannesiowusite-olivine-graphite assemblage. At >= 1500 degrees C, two melts with contrasting f(O2) values are generated: metal-carbon and silicate-oxide; their redox interaction leads to graphite crystallization and diamond growth. Under oxidation conditions, iron carbide is unstable in the presence of iron, silicon, and magnesium oxides, even at low temperatures. Iron carbide-oxide interaction at the mantle temperatures and pressures leads to the formation of elemental carbon; graphite is produced from carbide carbon mainly by redox reactions of cohenite (or metal-carbon melt) with Fe2O3 and FeO as well as by interaction between metal-carbon and silicate-oxide melts. The results obtained suggest that cohenite can be a potential source of carbon during graphite (diamond) formation in the lithospheric mantle and the interaction of iron carbide with iron, silicon, and magnesium oxides, during which carbon is extracted can be regarded as a process of the global carbon cycle. (C) 2016, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.

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Держатели документа:
Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, Pr Akad Koptyuga 3, Novosibirsk 630090, Russia.
Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia.
Russian Acad Sci, Siberian Branch, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Bataleva, Yu. V.; Palyanov, Yu. N.; Borzdov, Yu. M.; Bayukov, O. A.; Баюков, Олег Артемьевич; Sobolev, N. V.; Russian Science Foundation [14-27-00054]

/ Y. V. Bataleva [et al.] // Dokl. Earth Sci. - 2016. - Vol. 466, Is. 1. - P. 88-91, DOI 10.1134/S1028334X16010190. - Cited References: 15. - This study was supported by the Russian Science Foundation (project no. 14-27-00054). . - ISSN 1028-334XРУБ Geosciences, Multidisciplinary

Аннотация: Experimental studies of the Fe0–(Mg, Ca)CO3–S system were carried out during 18–20 h at 6.3 GPa, 900–1400°C. It is shown that the major processes resulting in the formation of free carbon include reduction of carbonates upon redox interaction with Fe0 (or Fe3C), extraction of carbon from iron carbide upon interaction with a sulfur melt/fluid, and reduction of the carbonate melt by Fe–S and Fe⎯S–C melts. Reconstruction of the processes of graphite formation indicates that carbonates and iron carbide may be potential sources of carbon under the conditions of subduction, and participation of the sulfur melt/fluid may result in the formation of mantle sulfides. © 2016, Pleiades Publishing, Ltd.

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Держатели документа:
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, pr. Akad. Koptyuga 3, Novosibirsk, Russian Federation
Novosibirsk State University, Novosibirsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, pr. Svobodny 79, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bataleva, Yu. V.; Palyanov, Y. N.; Borzdov, Y. M.; Bayukov, O. A.; Баюков, Олег Артемьевич; Sobolev, N. V.

/ A. . Korets, A. . Krylov, E. . Mironov // Eur. Phys. J. - Appl. Phys. - 2010. - Vol. 52, Is. 1. - P. 10901-10905, DOI 10.1051/epjap/2010126. - Cited References: 17 . - ISSN 1286-0042РУБ Physics, Applied

Аннотация: Diamond-containing material (DCM) synthesized by detonation was separated into fractions. Raman and infrared spectra and X-ray diffraction patterns of the individual fractions were measured. The particles of this material were characterized by the variable ratio of the diamond (sp(3)) and non-diamond components. The distribution of sp(3)-grains in the particles was of complicated character. The fine DCM particles contained an insignificant amount of diamond. The influence of density fluctuations on the DCM formation is discussed.

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Держатели документа:
[Korets, A.] Siberian Fed Univ, Krasnoyarsk 660074, Russia
[Krylov, A.] SB RAS, Inst Phys, Krasnoyarsk 660036, Russia
[Mironov, E.] Filial Irkutsk State Univ Railway Engn, Krasnoyarsk Inst Railway Transport, Krasnoyarsk 660028, Russia
ИФ СО РАН
Siberian Federal University, 26 Kirensky str., 660074 Krasnoyarsk, Russian Federation
Institute of Physics, SB RAS, 660036 Krasnoyarsk, Russian Federation
Krasnoyarsk Institute of Railway Transport, Filial of Irkutsk State University of Railway Engineering, 89, L. Ketskhoveli str., 660028 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Mironov, E.

/ A. Y. Korets, A. S. Krylov, E. V. Mironov // Russ. J. Phys. Chem. B. - 2010. - Vol. 4, Is. 5. - P. 793-796, DOI 10.1134/S1990793110050155. - Cited References: 10 . - ISSN 1990-7931РУБ Physics, Atomic, Molecular & Chemical

Аннотация: Raman backscattering spectra (RBS), infrared spectra, and X-ray diffraction intensity curves for various fractions of ultradispersed diamond-containing material (UDDCM) were recorded. The RBS and XRD curves obtained suggest that UDDCM is characterized by sharp variations in the ratio between the diamond and nondiamond components, a factor that makes it possible to consider this phase as an individual product and determines the scale of variations in the main characteristics. Fine UDDCM fractions contain only small amounts diamond-like (sp(3) carbon) grains, if any. One possible reason for changes in the ratio between the phases is density fluctuations under nonequilibrium conditions of synthesis.

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Держатели документа:
[Korets, A. Ya.] Siberian Fed Univ, Krasnoyarsk, Russia
[Krylov, A. S.] Russian Acad Sci, Kirenskii Inst Phys, Siberian Div, Krasnoyarsk, Russia
[Mironov, E. V.] Krasnoyarsk Inst Railway Transport, Krasnoyarsk, Russia
ИФ СО РАН

Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Mironov, E. V.

/ Y. . Ding [et al.] // Phys. Rev. Lett. - 2008. - Vol. 100, Is. 4. - Ст. 45508, DOI 10.1103/PhysRevLett.100.045508. - Cited References: 39 . - ISSN 0031-9007РУБ Physics, Multidisciplinary

Аннотация: Fe K-edge x-ray magnetic circular dichroism of magnetite (Fe(3)O(4)) powders was measured with synchrotron radiation under variable pressure and temperature conditions in diamond anvil cell. The magnetic dichroism was observed to decrease discontinuously by similar to 50% between 12 and 16 GPa, independent of temperature. The magnetic transition is attributed to a high-spin to intermediate-spin transition of Fe(2+) ions in the octahedral sites and could account for previously observed structural and electrical anomalies in magnetite at this pressure range. The interpretation of x-ray magnetic circular dichroism data is supported by x-ray emission spectroscopy and theoretical cluster calculations.

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Держатели документа:
Mao, Ho-kwang] Carnegie Inst Washington, HPSynC, Argonne, IL 60439 USA
Lang, Jonathan C.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
[Ovchinnikov, Sergei G.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Orlov, Yuri S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Mao, Ho-kwang] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA
[Mao, Ho-kwang] Carnegie Inst Washington, HPCAT, Argonne, IL 60439 USA
HPSynC, Carnegie Institution of Washington, 9700 South Cass Avenue, Argonne, IL 60439, United States
Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, United States
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Science, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington, DC 20015, United States
HPCAT, Carnegie Institution of Washington, Building 434E, 9700 South Cass Avenue, Argonne, IL 60439, United States

Доп.точки доступа:
Ding, Y.; Haskel, D.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Tseng, Y. C.; Orlov, Y. S.; Lang, J. C.; Mao, H. K.

/ A. Y. Korets, A. S. Krylov, E. V. Mironov // Russ. J. Phys. Chem. B. - 2007. - Vol. 1, Is. 5. - P. 485-492, DOI 10.1134/S1990793107050077. - Cited References: 25. - В описании WOS - Vol. 2 (ошибочно), Is. 5. - P 485-492 . - ISSN 1990-7931РУБ Physics, Atomic, Molecular & Chemical

Аннотация: An analysis of IR spectra, Raman spectra, and X-ray diffraction intensity curves for diamond-containing materials obtained by the detonation method under different conditions and purified by different methods was used to examine the structural nonuniformity of diamond-containing particles and the reasons why it arises.

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Держатели документа:
[Korets, A. Ya.
Mironov, E. V.] Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
[Krylov, A. S.] Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Mironov, E. V.

/ A. G. Gavriliuk [et al.] // J. Exp. Theor. Phys. - 2005. - Vol. 100, Is. 4. - P. 688-696, DOI 10.1134/1.1926429. - Cited References: 24 . - ISSN 1063-7761РУБ Physics, Multidisciplinary

Аннотация: The high-pressure magnetic states of iron borate (FeBO3)-Fe-57 single-crystal and powder samples have been investigated in diamond anvil cells by nuclear forward scattering (NFS) of synchrotron radiation at different temperatures. In the low-pressure (0 < P < 46 GPa) antiferromagnetic phase, an increase of the Neel temperature from 350 to 595 K induced by pressure was found. At pressures 46-49 GPa, a transition from the antiferromagnetic to a new magnetic state with a weak magnetic moment (magnetic collapse) was discovered. It is attributed to the electronic transition in Fe3+ ions from the high-spin 3d(5) (S = 5/2, (6)A(1g)) to the low-spin (S = 1/2, T-2(2g)) state (spin crossover) due to the insulator-semiconductor-type transition with extensive suppression of strong d-d electron correlations. At low temperatures, NFS spectra of the high-pressure phase indicate magnetic correlations in the low-spin system with a magnetic ordering temperature of about 50 K. A tentative magnetic P-T phase diagram of FeBO3 is proposed. An important feature of this diagram is the presence of two triple points where magnetic and paramagnetic phases of the high-spin and low-spin states coexist. © 2005 Pleiades Publishing, Inc.

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Держатели документа:
Inst High Pressure Phys, Troitsk 142190, Moscow Oblast, Russia
Russian Acad Sci, Inst Crystallog, Moscow 119333, Russia
Russian Acad Sci, Siberian Div, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Institute for High-Pressure Physics, Troitsk, Moscow oblast, 142190, Russian Federation
Institute of Crystallography, Russian Academy of Sciences, Moscow, 119333, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Gavriliuk, A. G.; Trojan, I. A.; Lyubutin, I. S.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Sarkissian, V. A.

/ J. L. Peng [et al.] // Int. J. Mod. Phys. B. - 2001. - Vol. 15, Is. 31. - P. 4071-4085, DOI 10.1142/S0217979201007865. - Cited References: 20 . - ISSN 0217-9792РУБ Physics, Applied + Physics, Condensed Matter + Physics, Mathematical

Аннотация: The rough surface of nano-crystalline diamond spheres induces surface electronic states which appear as a broadened pre-peak over approx. 15 eV at the C K-edge energy threshold for carbon in the parallel electron energy loss spectrum (PEELS). This appears to be at least partially due to 1s-pi* transitions, although typically the latter occupy a range of only 4 eV for the sp(2) edge of highly-oriented pyrollytic graphite (HOPG). No pi* electrons appear in the conduction band inside the diamond particles, where all electrons are sp(3) hybridized. PEELS data were also obtained from a chemical vapour deposited diamond film (CVDF) and gem-quality diamond for comparison with the spectra of nano-diamonds. The density of sp(2) and sp(3) states on the surface of diamond nano-crystals is calculated for simple structural models of the diamond balls, including some conjecture about surface structures. The results are used to interpret the sp(2)/sp(3) ratios measured from the PEELS spectra recorded as scans across the particles. Surface roughness at the atomic scale was also examined using high-resolution transmission electron microscopy (HRTEM) and electron nano-diffraction patterns were used to confirm the crystal structures.

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Держатели документа:
RMIT Univ, Dept Appl Phys, Melbourne, Vic 3051, Australia
Univ Sydney, Electron Microscope Unit, Sydney, NSW 2006, Australia
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Mol Architecture Grp, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
Univ Melbourne, Sch Phys, Parkville, Vic 3052, Australia
ИФ СО РАН
ИБФ СО РАН
Department of Applied Physics, RMIT University, Swanston Street, Melbourne, Vic. 3051, Australia
Electron Microscope Unit, University of Sydney, NSW 2006, Australia
Molecular Architecture Group, Kirensky Institute of Physics, Institute of Biophysics, 660036 Krasnoyarsk, Russian Federation
School of Physics, University of Melbourne, Parkville, Vic. 3010, Australia

Доп.точки доступа:
Peng, J. L.; Bulcock, S.; Belobrov, P. I.; Белобров, Петр Иванович; Bursill, L. A.

/ A. P. Puzir’ [et al.] // Colloid J. - 2017. - Vol. 79, Is. 2. - P. 258-263, DOI 10.1134/S1061933X17020119. - Cited References: 22 . - ISSN 1061-933X
Аннотация: Experimental data have been presented on the influence of silver on the viscosity and thermal conductivity of a dispersion of diamond nanoparticles. A stable dispersion (5 wt %) of detonation nanodiamond particles has been used in the experiments. Silver ions have been introduced electrolytically into the dispersion of diamond nanoparticles. Silver concentration was not higher than 0.05 wt %. It has been shown that the introduction of silver ions significantly affects the thermal conductivity and viscosity of the dispersion.

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, ul. Akademgorodok 50/50, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodnyi pr. 79., Krasnoyarsk, Russian Federation
Special Design and Technology Bureau Nauka, Institute of Computational Technologies, Siberian Branch, Russian Academy of Sciences, pr. Mira 53, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, ul. Akademgorodok 50/38, Krasnoyarsk, Russian Federation
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, ul. Akademgorodok 50/24, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Puzir’, A. P.; Minakov, A. V.; Burov, A. E.; Zharkov, S. M.; Жарков, Сергей Михайлович; Maksimov, N. G.; Pryazhnikov, M. I.

/ S. V. Goryainov [et al.] // Bull. Russ. Acad. Sci. Phys. - 2017. - Vol. 81, Is. 5. - P. 590-593, DOI 10.3103/S1062873817050100. - Cited References: 14 . - ISSN 1062-8738
Аннотация: In situ Raman spectroscopy is used to study the layered mineral phengite K(Al, Mg)2(Si, Al)4O10(OH)2 in water under the high temperature and pressure conditions typical of cold subduction zones (T up to 373°C and P = 12.5 GPa). High pressure and temperature were created in a resistively heated diamond anvil cell. Raman spectra show the high P–T stability of phengite. No reversible polymorphic transitions (overhydration or notable amorphization) are observed. © 2017, Allerton Press, Inc.

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Держатели документа:
Sobolev Institute of Geology and Mineralogy, Russian Academy of Sciences, Siberian Branch, Novosibirsk, Russian Federation
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Akademgorodok, Krasnoyarsk, Russian Federation
Ural State University of Economics, Yekaterinburg, Russian Federation

Доп.точки доступа:
Goryainov, S. V.; Krylov, A. S.; Крылов, Александр Сергеевич; Polyansky, O. P.; Vtyurin, A. N.; Втюрин, Александр Николаевич; Zmeeva, N. Y.

/ Y. V. Bataleva [et al.] // Lithos. - 2017. - Vol. 286-287. - P. 151-161, DOI 10.1016/j.lithos.2017.06.010. - Cited References: 57. - This work was supported by the Russian Foundation for Basic Research (project No. 16-35-60024) and by a State Assignment (project no. 0330-2016-0007). The authors thank the editor Marco Scambelluri, the reviewer Fabrizio Nestola and an anonymous reviewer for their helpful and constructive reviews. The authors thank A. Moskalev and M. Jolivet for their assistance in the work preparation, A. Sokol and A. Khokhryakov for useful suggestions throughout the study, S. Ovchinnikov for his assistance in implementation of the Mössbauer spectroscopy measurements. . - ISSN 0024-4937
   Перевод заглавия: Карбид железа как источник углерода для образования графита и алмаза при Р-Т параметрах литосферной мантии
Аннотация: Experimental modeling of natural carbide-involving reactions, implicated in the graphite and diamond formation and estimation of the iron carbide stability in the presence of S-bearing fluids, sulfide melts as well as mantle silicates and oxides, was performed using a multi-anvil high-pressure split-sphere apparatus. Experiments were carried out in the carbide-sulfur (Fe3C-S), carbide-sulfur-oxide (Fe3C-S-SiO2-MgO) and carbide-sulfide (Fe3C-FeS2) systems, at pressure of 6.3 GPa, temperatures in the range of 900–1600 °C and run time of 18–40 h. During the interaction of cohenite with S-rich reduced fluid or pyrite at 900–1100 °C, extraction of carbon from carbide was realized, resulting in the formation of graphite in assemblage with pyrrhotite and cohenite. At higher temperatures complete reaction of cohenite with newly-formed sulfide melt was found to produce metal-sulfide melt with dissolved carbon (Fe64S27C9 (1200 °C)–Fe54S40C6 (1500 °C), at.%), which acted as a crystallization medium for graphite (1200–1600 °C) and diamond growth on seeds (1300–1600 °C). Reactions of cohenite and oxides with S-rich reduced fluid resulted in the formation of graphite in assemblage with highly ferrous orthopyroxene and pyrrhotite (900–1100 °C) or in hypersthene formation, as well as graphite crystallization and diamond growth on seeds in the Fe-S-C melt (1200–1600 °C). We show that the main processes of carbide interaction with S-rich fluid or sulfide melt are recrystallization of cohenite (900–1100 °C), extraction of carbon and iron in the sulfide melt, and graphite formation and diamond growth in the metal-sulfide melt with dissolved carbon. Our results evidence that iron carbide can act as carbon source in the processes of natural graphite and diamond formation under reduced mantle conditions. We experimentally demonstrate that cohenite in natural environments can be partially consumed in the reactions with mantle silicates and oxides, and is absolutely unstable in the presence of S-bearing reduced fluid or sulfide melt at temperatures higher than 1100 °C, under lithospheric mantle pressures.

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Держатели документа:
Sobolev Institute of Geology and Mineralogy, Siberian Branch of Russian Academy of Sciences, Koptyug ave 3, Novosibirsk, Russian Federation
Novosibirsk State University, Pirogova str 2, Novosibirsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Akademgorodok 50, bld. 38, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bataleva, Yu. V.; Palyanov, Y. N.; Borzdov, Y. M.; Bayukov, O. A.; Баюков, Олег Артемьевич; Zdrokov, E. V.

/ A. A. Ivanenko [et al.] // Opt. Mater. - 2017. - Vol. 73. - P. 388-392, DOI 10.1016/j.optmat.2017.08.041. - Cited References: 54. - This study was supported by the Russian Foundation for Basic Research (Grants No. 16-32-00302 мол_а), by the Council for Grants of the President of the Russian Federation (SP-317.2015.1), by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 16-42-243059 р_мол_а and No. 16-48-242092 р_офи_м. . - ISSN 0925-3467
Аннотация: Flexible film broadband absorber based on diamond-graphite mixture and polyethylene was fabricated by hot pressing. The film thickness of the absorber was 90 μm. We have measured angular reflectivity, diffusional reflectivity and transmittance in the range 85–8000 cm−1 (117–1.25 μm) in order to determine the absorption. It was shown that room temperature pressing of mesh print with 250 μm step significantly reduces reflectivity of the absorber. The absorption was over 0.85 in the range 85–320 cm−1 (117–31.25 μm) and >0.98 in the range 320–8000 cm−1 (31.25–1.25 μm). We believe that the designed and manufactured absorber might become a promising material for optical devices where high broadband absorption and flexibility are required.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC Siberian Branch of Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Ivanenko, A. A.; Иваненко, Александр Анатольевич; Tambasov, I. A.; Тамбасов, Игорь Анатольевич; Pshenichnaia, A. A.; Пшеничная, Анастасия Александровна; Shestakov, N. P.; Шестаков, Николай Петрович

/ S. V. Goryainov [et al.] // J. Raman Spectrosc. - 2017. - Vol. 48, Is. 11. - P. 1431-1437, DOI 10.1002/jrs.5112. - Cited References:57. - This work was supported by the Russian Science Foundation (Grant No. 15-17-30012) . - ISSN 0377-0486. - ISSN 1097-4555
   Перевод заглавия: Исследование фенгита в сжатом состоянии в водной среде при одновременном высоком параметре P-T методом комбинационного расеяния светаРУБ Spectroscopy

Аннотация: The in-situ method of Raman spectroscopy was used to study the layered mineral phengite, K(Al,Mg)2(Si,Al)4O10(OH)2, compressed in water under simultaneously high temperatures and pressures (respectively, up to 373 °С and 12.5 GPa). The implemented conditions were typical of modeling the ‘cold’ subduction zones in lithospheric slabs. The high pressures and temperatures were produced in an electrically heated diamond-anvil cell. Measured Raman spectra have demonstrated a high Р–Т stability of the mineral. No non-quenchable phengite states (no reversible or irreversible polymorphic transitions, overhydration or notable amorphization) were observed in the investigated samples.

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Доп.точки доступа:
Goryainov, S. V.; Горяйнов, Сергей Владимирович; Krylov, A. S.; Крылов, Александр Сергеевич; Polyansky, O. P.; Полянский, О. П.; Vtyurin, A. N.; Втюрин, Александр Николаевич; Russian Science Foundation [15-17-30012]; International GeoRAMAN Conference(12th ; June 9-15, 2016 ; Novosibirsk, Russia)