Differential thermal analysis (DTA) on the reaction mechanism in Fe-Ti-B4C system

被引：22
|
作者：
Zhang, Zhiqiang
Shen, Ping
Jiang, Qichuan [1 ]
机构：
[1] Jilin Univ, Key Lab Automobile Mat, Minist Educ, Changchun 130025, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 463卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
intermetallics; precipitation; thermal analysis;
D O I：
10.1016/j.jallcom.2007.09.056
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Differential thermal analysis (DTA) was undertaken to determine the reaction mechanism in the Fe-Ti-B4C System under argon. When the mixtures were heated to about 786 degrees C, Fe2B and C appeared as a result of Fe reacting with B4C. As the temperature continued to increase, FeTi formed by an interdiffusion between Fe and Ti. When the mixtures were heated to 1089 degrees C, FeTi reacted with Ti, leading to the formation of a Fe-Ti melt, into which the displaced C and B from B4C dissolve, forming a Fe-Ti-C-B melt. Finally, when the concentration of C and B attained a certain value, Ti reacted with C and B, yielding TiC and TiB2 in the melt, and simultaneously considerable heat released. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：498 / 502
页数：5
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