Depressurization Amorphization of Single-Crystal Boron Carbide

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	Depressurization Amorphization of Single-Crystal Boron Carbide
	Yan, XQ ; Tang, Z ; Zhang, L ; Guo, JJ ; Jin, CQ ; Zhang, Y ; Goto, T ; McCauley, JW ; Chen, MW
刊名	PHYSICAL REVIEW LETTERS
	2009
卷号	102 期号:7
关键词	RAMAN-SPECTROSCOPY SHOCK COMPRESSION HIGH-PRESSURE DIAMOND B4C
ISSN号	0031-9007
通讯作者	Chen, MW: Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan.
中文摘要	We report depressurization amorphization of single-crystal boron carbide (B(4)C) investigated by in situ high-pressure Raman spectroscopy. It was found that localized amorphization of B(4)C takes place during unloading from high pressures, and nonhydrostatic stresses play a critical role in the high-pressure phase transition. First-principles molecular dynamics simulations reveal that the depressurization amorphization results from pressure-induced irreversible bending of C-B-C atomic chains cross-linking 12 atom icosahedra at the rhombohedral vertices.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/35766]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yan, XQ,Tang, Z,Zhang, L,et al. Depressurization Amorphization of Single-Crystal Boron Carbide[J]. PHYSICAL REVIEW LETTERS,2009,102(7).
APA	Yan, XQ.,Tang, Z.,Zhang, L.,Guo, JJ.,Jin, CQ.,...&Chen, MW.(2009).Depressurization Amorphization of Single-Crystal Boron Carbide.PHYSICAL REVIEW LETTERS,102(7).
MLA	Yan, XQ,et al."Depressurization Amorphization of Single-Crystal Boron Carbide".PHYSICAL REVIEW LETTERS 102.7(2009).