On the wurtzite to tetragonal phase transformation in ZnO nanowires
On the wurtzite to tetragonal phase transformation in ZnO nanowires
复制标题
ZnO纳米线中纤锌矿相向四方相变的研究
DOI:
10.1088/1361-6528/aa6566
复制
发表时间:
2017-03
期刊:
影响因子:
3.5
通讯作者:
Lu Chunsheng
中科院分区:
文献类型:
--
作者:
Wang Jun;Shen Yaogen;Song Fan;Ke Fujiu;Liao Xiaozhou;Lu Chunsheng
There is a long standing contradiction on the tensile response of zinc oxide nanowires between theoretical prediction and experimental observations. Although it is proposed that there is a ductile behavior dominated by phase transformation, only an elastic deformation and brittle fracture was witnessed in experiments. Using molecular dynamics simulations, we clarified that, as the lateral dimension of zinc oxide nanowires increases to a critical value, an unambiguous ductile-to-brittle transition occurs. The critical value increases with decreasing the strain rate. Factors including planar defects and surface contamination induce brittle fracture prior to the initiation of phase transformation. These findings are consistent with previous atomistic standpoints and experimental results.
登录
查看更多内容
影响因子:
9.9
作者:
F. Xu;Q. Qin;A. Mishra;Y. Gu;Yong Zhu
通讯作者:
F. Xu;Q. Qin;A. Mishra;Y. Gu;Yong Zhu
影响因子:
6
作者:
F. Ma;K. Xu
通讯作者:
F. Ma;K. Xu
影响因子:
3.2
作者:
Wang, Zhanyu;Wang, Fei;Wang, Lei;Jia, Yu;Sun, Qiang
通讯作者:
Sun, Qiang
影响因子:
1.7
作者:
Hongquan Song;Jiang Shen;P. Qian;N. Chen
通讯作者:
Hongquan Song;Jiang Shen;P. Qian;N. Chen
影响因子:
3.5
作者:
A. Orsini;P. Medaglia;D. Scarpellini;R. Pizzoferrato;C. Falconi
通讯作者:
A. Orsini;P. Medaglia;D. Scarpellini;R. Pizzoferrato;C. Falconi