Effect of in situ synthesized TiB2 on the reaction between B4C and Al in a vacuum infiltrated B4C-TiB2-Al composite

被引：19
|
作者：
Lue, P. [1 ]
Yue, X. Y. [1 ]
Yu, L. [1 ]
Ru, H. Q. [1 ]
机构：
[1] Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110004, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2009年 / 44卷 / 13期
基金：
中国国家自然科学基金;
关键词：
CARBIDE-ALUMINUM COMPOSITES; BORON-CARBIDE; MECHANICAL-PROPERTIES; CERAMICS;
D O I：
10.1007/s10853-009-3466-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The in situ reaction equation of B4C and TiO2 was identified using thermodynamic calculations and XRD analysis. The optimum presintering process was determined according to investigating the effect of presintering temperature on the flexural strength and porosity of the porous B4C-TiB2 preform. The effect of in situ synthesized TiB2 on the reaction products and initial reaction temperature of B4C and Al was discussed based on DSC and XRD analysis. The results showed that the in situ synthesized TiB2 could effectively improve the mechanical properties of the B4C-TiB2-Al composite, elevate the initial reaction temperature of B4C and Al, change the reaction products, and moderate the reaction of B4C and Al. The mechanism of reaction between B4C and Al was discussed.
引用
收藏
页码：3483 / 3487
页数：5
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