Cu晶体[110]载荷下的理论强度  

Theoretical Strength of the Crystal Cu Under [110] Loading

作　　者：杨艳[1,2] 许丽萍[1] 

机构地区：[1]中北大学理学院物理系,山西太原030051 [2]陕西师范大学物理学与信息技术学院,陕西西安710062

出　　处：《贵州大学学报（自然科学版）》2009年第6期28-31,共4页Journal of Guizhou University:Natural Sciences

基　　金：山西省自然科学基金资助项目(200611010)

摘　　要：把MAEAM与Wang等改进的Bom力学稳定性判据相结合，讨论了FCC晶体Cu沿[110]方向单轴载荷下的力学稳定性和理论强度。结果表明：计算的FCC相弹性模量与实验值符合很好。其力学稳定性范围为-263．4～4．03GPa，相应的伸长范围为0．796-1．066．The mechanical stability and theoretical strength of FCC crystal Cu under [ 110] uniaxial loading were investigated by combining MAEAM with Wang et al modified Born stability criteria. The results revealed that, the calculated elastic moduli of FCC phase are in good agreement with the experimental values. The stable region ranges from- 263.4 - 4.03 GPa in the theoretical strength or 0.796 -1. 066 in the stretch 1 correspondingly.

关 键 词：力学稳定性 理论强度 CU MAEAM 

分 类 号：O469[理学—凝聚态物理]