Temperature dependence of elastic properties for amorphous SiO(2) by molecular dynamics simulation

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	Temperature dependence of elastic properties for amorphous SiO(2) by molecular dynamics simulation
	B. Liu; J. Y. Wang; Y. C. Zhou; F. Z. Li
	2008
发表期刊	Chinese Physics Letters
ISSN	0256-307X
卷号	25 期号:8 页码:2747-2750
摘要	Large-scale and long-time molecular-dynamics simulations are used to investigate the temperature dependences of elastic properties for amorphous SiO(2). The elastic moduli increase in a temperature range up to 1600 K and decrease thereafter. The anomalous behaviour in elasticity is explained by analysing the changes of atomic-scale structure with respect to increment of temperature. The mechanism originates predominantly from distortion of the SiO(4) tetrahedra network in low-temperature ranges. At an elevated temperature range, thermal-induced Si-O bond stretching dominates the process and leads to normal temperature dependence of elastic properties.
部门归属	[liu bin; wang jing-yang; zhou yan-chun; li fang-zhi] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [liu bin; li fang-zhi] chinese acad sci, grad sch, beijing 100039, peoples r china. [wang jing-yang] chinese acad sci, inst met res, int ctr mat phys, shenyang 110016, peoples r china.;wang, jy (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;jywang@imr.ac.cn
关键词	Brillouin-scattering Vitreous Silica Fused Quartz Neutron-scattering Network Glasses Pressure Crystal Moduli
URL	查看原文
WOS记录号	WOS:000258018300004
引用统计	被引频次：11[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/321006/32930
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Liu,J. Y. Wang,Y. C. Zhou,et al. Temperature dependence of elastic properties for amorphous SiO(2) by molecular dynamics simulation[J]. Chinese Physics Letters,2008,25(8):2747-2750.
APA	B. Liu,J. Y. Wang,Y. C. Zhou,&F. Z. Li.(2008).Temperature dependence of elastic properties for amorphous SiO(2) by molecular dynamics simulation.Chinese Physics Letters,25(8),2747-2750.
MLA	B. Liu,et al."Temperature dependence of elastic properties for amorphous SiO(2) by molecular dynamics simulation".Chinese Physics Letters 25.8(2008):2747-2750.