Atomistic theory of bulk metallic glass formation

被引：0

作者：

Egami, T ^{[1
]}

机构：

[1] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

来源：

SUPERCOOLED LIQUIDS, GLASS TRANSITION AND BULK METALLIC GLASSES | 2003年 / 754卷

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bulk metallic glass can be formed only when the critical cooling rate for glass formation is reduced to 10(0-2) K/sec. However, a cooling rate achievable with molecular dynamics simulation is higher by many orders of magnitude, so the gap has to be abridged by analytical theories. We propose a theory of bulk metallic glass formation based upon our early theories of glass formation composition. The critical concepts include the idea of local glass transition, distributed local glass transition temperatures and coincident local fluctuation for atomic transport. Strong repulsion between small atoms was recognized for the first time as the necessary condition for bulk glass formation.

引用

页码：47 / 52

页数：6

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