Thermal expansion behavior of aluminum matrix composite reinforced by SnO2-coated Al18B4O33 whisker

被引：3

作者：

Zhao, P. T. ^{[1
,2
]}

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

Du, Z. M. ^{[1
]}

Xu, S. C. ^{[1
]}

Jin, P. P. ^{[3
]}

Fei, W. D. ^{[1
,3
]}

机构：

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

[2] China Elect Technol Grp Corp 38 Res Inst, Hefei 230088, Peoples R China

[3] Qinghai Univ, Sch Mech Engn, Xining 810016, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2013年 / 138卷 / 2-3期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Composite materials; Hot working; Electron microscopy; Thermal expansion; STRESS;

D O I：

10.1016/j.matchemphys.2012.12.073

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermal expansion behaviors of aluminum matrix composites reinforced by SnO2-coated Al18B4O33 whisker were investigated. The experimental results indicate that the SnO2 coating of whisker can reduce the coefficients of thermal expansion of the composite both in transverse direction and longitudinal direction, and the lowest coefficients of thermal expansion can be obtained in the composite with suitable whisker coating. A model was proposed to clarify the relationship between the coefficients of thermal expansion of the composites and change of thermal mismatch stress in the matrix of the composites with different whisker coating contents. Significant impact of SnO2 coating content on variations of thermal mismatch stress is confirmed. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：856 / 861

页数：6

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