Shock-induced cation disorder in magnesium aluminate spinel

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	Shock-induced cation disorder in magnesium aluminate spinel
	Q. Y. Chen; C. M. Meng; T. C. Lu; M. Xu; J. Q. Qi; J. J. Tan
	2010
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	108 期号:11
摘要	An increase in lattice constants and an order-disorder phase transition were observed in the magnesium aluminate spinel (MgAl(2)O(4)) powders after shock compression. Theoretical calculations on the basis of density functional theory confirm that the remarkable volume expansion in shocked MgAl(2)O(4) powders is closely related to the substantial site disorder in the MgAl(2)O(4) lattice. The calculations also show that the partially inverse MgAl(2)O(4) spinel with an inversion index of 0.7 represents the greatest disordered metastable phase and the most unstable structure. (C) 2010 American Institute of Physics. [doi:10.1063/1.3516345]
部门归属	[chen, q. y.; meng, c. m.; tan, j. j.] china acad engn phys, inst fluid phys, key lab shock wave & detonat phys, mianyang 621900, peoples r china. [chen, q. y.; lu, t. c.; qi, j. q.] sichuan univ, dept phys, minist educ, chengdu 610064, peoples r china. [chen, q. y.; lu, t. c.; qi, j. q.] sichuan univ, key lab radiat phys & technol, minist educ, chengdu 610064, peoples r china. [xu, m.] sichuan normal univ, inst solid state phys, lab low dimens struct phys, chengdu 610068, peoples r china. [xu, m.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;chen, qy (reprint author), china acad engn phys, inst fluid phys, key lab shock wave & detonat phys, mianyang 621900, peoples r china;mcm901570@126.com hsuming_2001@yahoo.com.cn
关键词	Situ Neutron-diffraction Mgal2o4 Spinel Order-disorder Ceramics Powder
URL	查看原文
WOS记录号	WOS:000285474100050
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31030
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Y. Chen,C. M. Meng,T. C. Lu,et al. Shock-induced cation disorder in magnesium aluminate spinel[J]. Journal of Applied Physics,2010,108(11).
APA	Q. Y. Chen,C. M. Meng,T. C. Lu,M. Xu,J. Q. Qi,&J. J. Tan.(2010).Shock-induced cation disorder in magnesium aluminate spinel.Journal of Applied Physics,108(11).
MLA	Q. Y. Chen,et al."Shock-induced cation disorder in magnesium aluminate spinel".Journal of Applied Physics 108.11(2010).