论文专著教材(Writing Papers are a necessity for academic survival)

A molecular dynamics study on indentation response of single crystalline wurtzite GaN




作者: Yu Qian, Fulin Shang, Qiang Wan, and Yabin Yan
发表/完成日期: 2018-09-19
期刊名称: Journal of Applied Physics
期卷: 124
相关文章:
论文简介
Journal of Applied Physics 124, 115102 (2018); https://doi.org/10.1063/1.5041738
A series of molecular dynamics simulations are carried out to investigate the plastic deformation in wurtzite GaN. Besides the formation of an amorphous zone under the contact region, plastic slips nucleated on the m plane (10-10), c plane (0001), r plane (10-12), and s plane (10-11) are observed in the indentation. Combined with a close analysis of critical stress that induces a specific slip on different crystalline planes, the defect evolution is discussed in detail. Slip systems of [10-1-1](10-12) and 1/3[2-1-1-3](10-11) on the pyramidal planes are not supposed to nucleate easily since higher stress is required to activate them. However, a significant decrease in the shear stress that induces a pyramidal slip could be expected if the slip evolves gradually following a two-step procedure. The gradual slips on both the r plane (10-12) and s plane (10-11) are observed in our indentation simulation; the mechanism is studied by the calculation of generalized stacking fault energy.
版权所有:西安交通大学 站点设计:网络信息中心 陕ICP备05001571号 IPhone版本下载 IPhone版本下载    Android版本下载 Android版本下载
欢迎您访问我们的网站,您是第 位访客
推荐分辨率1024*768以上 推荐浏览器IE7 Firefox 以上