Structural stability and mechanism of compression of stoichiometric B13C2 up to 68GPa

Abstract Boron carbide is a ceramic material with unique properties widely used in numerous, including armor, applications. Its mechanical properties, mechanism of compression, and limits of stability are of both scientific and practical value. Here, we report the behavior of the stoichiometric boro...

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Autores principales:	Irina Chuvashova, Elena Bykova, Maxim Bykov, Volodymyr Svitlyk, Leonid Dubrovinsky, Natalia Dubrovinskaia
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f044c868f15545089b7b852de61c2ca8
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spelling	oai:doaj.org-article:f044c868f15545089b7b852de61c2ca82021-12-02T11:40:21ZStructural stability and mechanism of compression of stoichiometric B13C2 up to 68GPa10.1038/s41598-017-09012-82045-2322https://doaj.org/article/f044c868f15545089b7b852de61c2ca82017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09012-8https://doaj.org/toc/2045-2322Abstract Boron carbide is a ceramic material with unique properties widely used in numerous, including armor, applications. Its mechanical properties, mechanism of compression, and limits of stability are of both scientific and practical value. Here, we report the behavior of the stoichiometric boron carbide B13C2 studied on single crystals up to 68 GPa. As revealed by synchrotron X-ray diffraction, B13C2 maintains its crystal structure and does not undergo phase transitions. Accurate measurements of the unit cell and B12 icosahedra volumes as a function of pressure led to conclusion that they reduce similarly upon compression that is typical for covalently bonded solids. A comparison of the compressional behavior of B13C2 with that of α–B, γ–B, and B4C showed that it is determined by the types of bonding involved in the course of compression. Neither ‘molecular-like’ nor ‘inversed molecular-like’ solid behavior upon compression was detected that closes a long-standing scientific dispute.Irina ChuvashovaElena BykovaMaxim BykovVolodymyr SvitlykLeonid DubrovinskyNatalia DubrovinskaiaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Irina Chuvashova Elena Bykova Maxim Bykov Volodymyr Svitlyk Leonid Dubrovinsky Natalia Dubrovinskaia Structural stability and mechanism of compression of stoichiometric B13C2 up to 68GPa
description	Abstract Boron carbide is a ceramic material with unique properties widely used in numerous, including armor, applications. Its mechanical properties, mechanism of compression, and limits of stability are of both scientific and practical value. Here, we report the behavior of the stoichiometric boron carbide B13C2 studied on single crystals up to 68 GPa. As revealed by synchrotron X-ray diffraction, B13C2 maintains its crystal structure and does not undergo phase transitions. Accurate measurements of the unit cell and B12 icosahedra volumes as a function of pressure led to conclusion that they reduce similarly upon compression that is typical for covalently bonded solids. A comparison of the compressional behavior of B13C2 with that of α–B, γ–B, and B4C showed that it is determined by the types of bonding involved in the course of compression. Neither ‘molecular-like’ nor ‘inversed molecular-like’ solid behavior upon compression was detected that closes a long-standing scientific dispute.
format	article
author	Irina Chuvashova Elena Bykova Maxim Bykov Volodymyr Svitlyk Leonid Dubrovinsky Natalia Dubrovinskaia
author_facet	Irina Chuvashova Elena Bykova Maxim Bykov Volodymyr Svitlyk Leonid Dubrovinsky Natalia Dubrovinskaia
author_sort	Irina Chuvashova
title	Structural stability and mechanism of compression of stoichiometric B13C2 up to 68GPa
title_short	Structural stability and mechanism of compression of stoichiometric B13C2 up to 68GPa
title_full	Structural stability and mechanism of compression of stoichiometric B13C2 up to 68GPa
title_fullStr	Structural stability and mechanism of compression of stoichiometric B13C2 up to 68GPa
title_full_unstemmed	Structural stability and mechanism of compression of stoichiometric B13C2 up to 68GPa
title_sort	structural stability and mechanism of compression of stoichiometric b13c2 up to 68gpa
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f044c868f15545089b7b852de61c2ca8
work_keys_str_mv	AT irinachuvashova structuralstabilityandmechanismofcompressionofstoichiometricb13c2upto68gpa AT elenabykova structuralstabilityandmechanismofcompressionofstoichiometricb13c2upto68gpa AT maximbykov structuralstabilityandmechanismofcompressionofstoichiometricb13c2upto68gpa AT volodymyrsvitlyk structuralstabilityandmechanismofcompressionofstoichiometricb13c2upto68gpa AT leoniddubrovinsky structuralstabilityandmechanismofcompressionofstoichiometricb13c2upto68gpa AT nataliadubrovinskaia structuralstabilityandmechanismofcompressionofstoichiometricb13c2upto68gpa
_version_	1718395679114526720

Structural stability and mechanism of compression of stoichiometric B13C2 up to 68GPa

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