24小时热门版块排行榜

返回列表

【奖励】本帖被评价3次，作者hslining增加金币 2.5 个

当前主题已经存档。

hslining

木虫 (正式写手)

应助: 0 (幼儿园)
贵宾: 0.805
金币: 3647.7
帖子: 797
在线: 53.9小时
虫号: 473457

[资源] Kelton 的一篇新PRL文章

Icosahedral Order, Frustration, and the Glass Transition: Evidence from Time-Dependent Nucleation and Supercooled Liquid Structure Studies

Y. T. Shen, T. H. Kim, A. K. Gangopadhyay, and K. F. Kelton

One explanation for the glass transition is a geometrical frustration owing to the development of non-space-filling short-range order (icosahedral, tetrahedral). However, experimental demonstrations of this are lacking. Here, the first quantitative measurements of the time-dependent nucleation rate in a Zr59Ti3Cu20Ni8Al10 bulk metallic glass are combined with the first measurements of the evolution of the supercooled liquid structure to near the glass transition temperature to provide strong support for an icosahedral-order-based frustration model for the glass transition in Zr-based glasses.

Phys. Rev. Lett. 102, 057801 (2009)

http://link.aps.org/doi/10.1103/PhysRevLett.102.057801
http://link.aps.org/doi/10.1103/PhysRevLett.102.057801

[ Last edited by hslining on 2009-9-10 at 15:43 ]

回复此楼