Mechanical properties and thermal stability of ZnAl2O4-coated aluminum borate whiskers reinforced 2024Al composite

被引：7

作者：

Yue, H. Y. ^{[1
]}

Fei, W. D. ^{[1
]}

Wang, L. D. ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2008年 / 43卷 / 18期

基金：

国家高技术研究发展计划(863计划);

关键词：

D O I：

10.1007/s10853-008-2914-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnAl2O4-coated aluminum borate whiskers reinforced 2024Al composite was fabricated by squeeze casting. Interfacial microstructures and tensile properties of the composite were investigated. The results show that ZnAl2O4 coating of the whiskers can improve the wettability of the whiskers by molten aluminum during squeeze casting, resulting in the increase of tensile properties of the composite. During thermal exposure, ZnAl2O4 at the interface can effectively hinder harmful interfacial reactions, resulting in the improvement of thermal stability of the composite at high temperatures. Fracture mechanisms of the composite in as-cast and after thermal exposure were also investigated.

引用

页码：6233 / 6237

页数：5

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