Interfacial characteristics of diamond/aluminum composites with high thermal conductivity fabricated by squeeze-casting method

被引：30

作者：

Jiang, Longtao ^{[1
]}

Wang, Pingping ^{[1
]}

Xiu, Ziyang ^{[2
]}

Chen, Guoqin ^{[1
]}

Lin, Xiu ^{[3
]}

Dai, Chen ^{[1
]}

Wu, Gaohui ^{[1
]}

机构：

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

[2] Harbin Inst Technol, Skate Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

[3] Heilongiang Acad Ind Technol, Harbin 150001, Peoples R China

来源：

MATERIALS CHARACTERIZATION | 2015年 / 106卷

基金：

中国国家自然科学基金;

关键词：

Diamond/aluminum composites; Metal matrix composites; Interface characteristics; Electron microscopy; Thermal conductivity; CARBIDE FORMATION; BOUNDARY CONDUCTANCE; HEAT-TRANSPORT; DIAMOND; MICROSTRUCTURE; ORIENTATION; MATRIX; TI;

D O I：

10.1016/j.matchar.2015.06.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, aluminum matrix composites reinforced with diamond particles (diamond/aluminum composites) were fabricated by squeeze casting method. The material exhibited a thermal conductivity as high as 613 W/(m.K). The obtained composites were investigated by scanning electron microscope and transmission electron microscope in terms of the (100) and {111} facets of diamond particles. The diamond particles were observed to be homogeneously distributed in the aluminum matrix. The diamondom({111})/Al interface was found to be devoid of reaction products. While at the diamond({100})/Al interface, large-sized aluminum carbides (Al4C3) with twin-crystal structure were identified. The interfacial characteristics were believed to be responsible for the excellent thermal conductivity of the material. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：346 / 351

页数：6

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