| 查看: 388 | 回复: 0 | ||
| 当前主题已经存档。 | ||
[资源]
最近science上非晶文章
|
||
|
Science 19 December 2008: Vol. 322. no. 5909, pp. 1816 - 1819 DOI: 10.1126/science.1163062 Prev | Table of Contents | Next Reports Matching Glass-Forming Ability with the Density of the Amorphous Phase Y. Li,1,2* Q. Guo,1,2 J. A. Kalb,1,3 C. V. Thompson1,3* The density of the amorphous phase of metals is generally thought to be related to glass formation, but this correlation has not been demonstrated experimentally to date. In this work, systematic deflection measurements using microcantilevers and a combinatorial deposition method show a correlation between glass-forming ability and the density change upon crystallization over a broad compositional range in the copper-zirconium binary system. Distinct peaks in the density of the amorphous phase were found to correlate with specific maxima in the critical thickness for glass formation. Our findings provide quantitative data for the development of structural models of liquids that are readily quenched to the amorphous state. The experimental method developed in this work can facilitate the search for new glass-forming alloys. 1 Singapore–Massachusetts Institute of Technology (MIT) Alliance, 4 Engineering Drive 3, Singapore 117576. 2 Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117576. 3 Department of Materials Science and Engineering, MIT, Cambridge, MA 02139, USA. Present address: Intel Corporation, Santa Clara, CA 95054, USA. * To whom correspondence should be addressed. E-mail: mseliy@nus.edu.sg (Y.L.); cthomp@mit.edu (C.V.T.) http://g.zhubajie.com/urllink.php?id=3542321lshxe94531ijgcnx |
回复此楼» 猜你喜欢
0703总分331求调剂
已经有6人回复
-
085600，321分求调剂
已经有7人回复
-
325求调剂
已经有4人回复
-
085600，320分求调剂
已经有12人回复
-
一志愿0817化学工程与技术，求调剂
已经有27人回复
-
一志愿北京化工085600 310分求调剂
已经有8人回复
-
一志愿哈尔滨工业大学085600英一数二337分求调剂
已经有10人回复
-
22408求调剂 354分 可跨专业
已经有3人回复
-
277工科求调剂
已经有4人回复
-
一志愿沪9，求生物学调剂，326分
已经有3人回复
