| 查看: 131 | 回复: 2 | ||
| 【奖励】 本帖被评价1次，作者wolfliu增加金币 0.5 个 | ||
| 当前主题已经存档。 | ||
[资源]
PRL-Nano-corrugation-model
|
||
|
Nanoscale Periodic Morphologies on the Fracture Surface of Brittle Metallic Glasses G. Wang,1 D. Q. Zhao,1 H.Y. Bai,1 M. X. Pan,1 A. L. Xia,1 B. S. Han,1 X. K. Xi,2 Y. Wu,2 and W. H. Wang1,* 1 Institute of Physics, Chinese Academy of Sciences, Beijing 100080, People’s Republic of China 2 Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599-3255, USA (Received 20 September 2006; published 5 June 2007) Out-of-plane, nanoscale periodic corrugations are observed in the dynamic fracture surface of brittle bulk metallic glasses with fracture toughness approaching that of silica glasses. A model based on the meniscus instability and plastic zone theory is used to explain such dynamic crack instability. The results indicate that the local softening mechanism in the fracture is an essential ingredient for controlling the formation of the unique corrugations, and might provide a new insight into the origin of fracture surface roughening in brittle materials. DOI: 10.1103/PhysRevLett.98.235501 PACS numbers: 62.20.Mk, 61.43.Fs **一切内容来源于网络搜索，禁止一切商业应用，否则后果由其承担，本站及主题作者不负法律及连带责任** [ Last edited by luo.henry on 2008-4-26 at 12:22 ] |
回复此楼» 猜你喜欢
290求调剂
已经有9人回复
-
0856化工专硕求调剂
已经有6人回复
-
0856材料专业298分有科研经历 硕士研究生调剂自荐信
已经有6人回复
-
材料化工调剂
已经有7人回复
-
化工299分求调剂 一志愿985落榜
已经有3人回复
-
306分材料调剂
已经有4人回复
-
302材料工程求调剂
已经有5人回复
-
272求调剂
已经有5人回复
-
材料学调剂
已经有9人回复
-
321求调剂一志愿东北林业大学材料与化工英二数二
已经有6人回复
2楼2007-06-26 15:27:33
3楼2007-06-26 15:51:36
10