The combustion synthesis process of Al-Ti-C system in an elevated-temperature Al-melt

被引：0

作者：

You-wei Y. ^{[1
]}

Zheng-yi F. ^{[2
]}

Run-zhang Y. ^{[2
]}

机构：

[1] State Key Lab of Die and Mould Technology, Huazhong University of Science and Technology

[2] Wuhan University of Technology, Wuhan

来源：

Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2002年 / 17卷 / 2期

关键词：

Al-melt; Combustion synthesis; Infiltration; TiC/Al composites;

D O I：

10.1007/BF02832611

中图分类号：

学科分类号：

摘要：

One of the main disadvantages of combustion synthesis of ceramic/metal composite materials is the relatively high level of porosity present in the products. To synthesize TiC/Al composites with a dense structure, this paper proposes a novel application of an elevated-temperature Al-melt to directly ignite and simultaneously infiltrate Al-Ti-C preform dipped in the melt. The emphasis was placed on the combustion synthesis process and microstructural evaluation of the preform in the melt, by a liquid quenching test combined with the measurement of the temperature history of the dipped preform. The results show that the combustion synthesis process of the preform in the elevated-temperature melt involves a series of reactions, and that higher temperature of the melt is favourable for the formation of TiC. The synthesized TiC/Al composites exhibit a dense structure, which is attributed to the infiltration of the melt into the preform.

引用

页码：10 / 13

页数：3

共 11 条

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