| 查看: 703 | 回复: 6 | ||
| 【奖励】 本帖被评价2次，作者imrsfb增加金币 1.5 个 | ||
| 当前主题已经存档。 | ||
[资源]
【原创】PRL, PRB 最新玻璃文献
|
||
|
Phys. Rev. B 80, 104104 (2009) [5 pages] Effects of focused ion beam induced damage on the plasticity of micropillars Jaafar A. El-Awady,1 Christopher Woodward,1 Dennis M. Dimiduk,1 and Nasr M. Ghoniem2 1Air Force Research Laboratory, Materials and Manufacturing Directorate, AFRL/RXLM Wright-Patterson AFB, Ohio 45433-7817, USA 2Mechanical and Aerospace Department, University of California, Los Angeles, California 90095-1597, USA Received 2 July 2009; revised 12 August 2009; published 9 September 2009 The hardening effects of focused ion beam (FIB) induced damage produced during the fabrication of micropillars are examined by introducing a surface layer of nanosized obstacles into a dislocation dynamics simulation. The influence of the depth and strength of the obstacles as a function of pillar diameter is assessed parametrically. We show that for a selected set of sample sizes between 0.5 and 1.0 µm, the flow strength can increase by 10–20 %, for an obstacle strength of 750 MPa, and damage depth of 100 nm. On the other hand, for sizes larger and smaller than this range, the effect of damage is negligible. Results show that the obstacles formed during the FIB milling may be expected to alter the microstructure of micropillars, however, they have a negligible effect on the observed size-strength scaling laws. http://scitation.aip.org/getabs/ ... =cvips&gifs=yes Phys. Rev. Lett. 103, 115701 (2009) [4 pages] Irreversible Rearrangements, Correlated Domains, and Local Structure in Aging Peter Yunker,1 Zexin Zhang,1,2 Kevin B. Aptowicz,3 and A. G. Yodh1 1Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA 2Complex Assemblies of Soft Matter, CNRS-Rhodia-UPenn UMI 3254, Bristol, Pennsylvania 19007, USA 3Department of Physics, West Chester University, West Chester, Pennsylvania 19383, USA Received 3 June 2009; revised 3 August 2009; published 9 September 2009 Bidisperse colloidal suspensions of temperature-sensitive microgel spheres were quenched from liquid to glass states by a rapid temperature drop, and then the glass was permitted to age. Irreversible rearrangements, events that dramatically change a particle's local environment, were observed to be closely related to dynamic heterogeneity. The rate of these irreversible events decreased during aging and the the number of particles required to move as part of these irreversible rearrangements increased. Thus, the slowing dynamics of aging were governed by growing, correlated domains of particles. Additionally, short-range order developed, and a spatial decay length scale associated with orientational order was found to grow during aging. http://scitation.aip.org/getabs/ ... =cvips&gifs=yes |
回复此楼» 猜你喜欢
805600专硕材料与化工348分求调剂
已经有6人回复
-
重庆大学材料与化工085600，初试370+，求求调剂建议
已经有5人回复
-
309求调剂
已经有3人回复
-
一志愿北交大材料工程，总分358
已经有4人回复
-
302求调剂一志愿北航070300，本科郑大化学
已经有11人回复
-
化学工程专硕324分，一志愿中国矿业大学求调剂
已经有7人回复
-
材料求调剂
已经有11人回复
-
【求调剂】新能源材料本科，一志愿211，初试321
已经有4人回复
-
336求调剂
已经有5人回复
-
材料求调剂
已经有8人回复
★ ★ ★ ★ ★ ★
hslining(金币+6,VIP+0):很好的资源。 9-17 10:51
hslining(金币+6,VIP+0):很好的资源。 9-17 10:51
|
下载： PRB： http://g.zhubajie.com/urllink.php?id=60633694wtpj7w24vte2js1 PRL：http://g.zhubajie.com/urllink.php?id=6063374djyns971tecso9s5 |
2楼2009-09-17 09:19:37
3楼2009-09-17 10:48:28
5楼2009-11-25 00:08:51
6楼2009-11-25 06:27:00
7楼2009-12-15 09:40:10
简单回复
2009-11-19 01:01
回复
