Study-on mechanical alloying and subsequent heat treatment of the Ti-Si system

被引：46

作者：

Yang, JY ^{[1
]}

Wu, JS ^{[1
]}

Hua, W ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Open Lab State Minist Educ High Temp Mat & Testin, Shanghai 200030, Peoples R China

来源：

PHYSICA B | 2000年 / 279卷 / 04期

关键词：

mechanical alloying; amorphization; Ti-Si system intermetallics;

D O I：

10.1016/S0921-4526(99)01228-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Elemental powder mixtures of TixSi100-x were mechanically alloyed by using a planetary ball mill. XRD, SEM, TEM and DTA were used to characterize their mechanical alloying process. After milling for 45 h, Ti75Si25, Ti62.5Si37.5 and Ti50Si50 powders were amorphized completely; however, no obvious amorphization was observed for Ti33.3Si66.7 and Ti25Si75 powders. By using Miedema model, a thermodynamics analysis was performed. Annealing the as-milled powders in vacuum at 860 degrees C for 1 h, the as-milled Ti62.5Si37.5 powders transformed into Ti5Si3 intermetallics, and Ti33.3Si66.7 transformed into TiSi2 intermetallics completely. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：241 / 245

页数：5

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