期刊
SCRIPTA MATERIALIA
卷 63, 期 10, 页码 981-984出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2010.07.023
关键词
Nano-twin; High pressure; Synchrotron; Silicon carbide
类别
资金
- DOE [M68008855]
- Los Alamos National Laboratory under DOE [DE-AC52-06NA25396]
- Energy Frontier Research Center funded by the DOE, Office of Science and Office of Basic Energy Sciences [DE-SC0001057]
- US DOE, Office of Science and Office of Basic Energy Sciences [DE-AC02-06CH11357]
Compressibility of periodically twinned silicon carbide nanowires is studied using in situ high pressure X-ray diffraction. Twinned SiC nanowires displayed a bulk modulus of 316 GPa, similar to 20-40% higher than previously reported values for SiC of other morphologies. This finding provides direct evidence of a significant effect of twinned structures on the elastic properties of SiC on the nano scale and supports previous molecular dynamics simulations of twin boundary/stacking fault-induced strengthening. Both experiments and simulations indicate that nanoscale twinning is an effective pathway by which to tailor the mechanical properties of nanostructures. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据