Enhanced thermal conductivity in Diamond/Aluminum composites with tungsten coatings on diamond particles prepared by magnetron sputtering method

被引：53

作者：

Yang, Wenshu ^{[1
]}

Chen, Guoqin ^{[1
]}

Wan, Pingping ^{[1
]}

Qiao, Jing ^{[1
]}

Hu, Fengjiao ^{[2
]}

Liu, Shufeng ^{[3
]}

Zhang, Qiang ^{[1
]}

Hussain, Murid ^{[4
]}

Dong, Ronghua ^{[5
]}

Wu, Gaohui ^{[1
]}

机构：

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

[2] China Acad Space Technol, Xian Div, Xian 710000, Shaanxi, Peoples R China

[3] Beijing Inst Elect Syst Engn, Beijing 100854, Peoples R China

[4] COMSATS Inst Informat Technol, Dept Chem Engn, MA Jinnah Bldg,Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan

[5] Beijing Inst Aerosp Control Devices, Beijing 100039, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 726卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Metal matrix composites; Al matrix composites; Diamond; Magnetron sputtering method; Microstructure; Thermal conductivity; GAS-PRESSURE INFILTRATION; AL/DIAMOND COMPOSITES; COATED DIAMOND; MECHANICAL-PROPERTIES; MATRIX COMPOSITE; AL-MATRIX; POWDER-METALLURGY; MICROSTRUCTURE; INTERFACE; TI;

D O I：

10.1016/j.jallcom.2017.08.055

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present work, tungsten (W) coatings with thickness range of 35-130 nm on the diamond particles were prepared by magnetron sputtering method, and then the Diamond/Al composites were prepared by the vacuum infiltration method. The prepared W coatings were smooth and dense on all the facets of the diamond particles. Moreover, the presence of W-coatings inhibited the interfacial debonding phenomenon and improved the interfacial bonding between diamond particles and Al matrix. The Diamond/Al composite with the 45 nm W-coating achieved the maximum thermal conductivity (622 W/(m.K)). To the best of our knowledge, it is the highest thermal conductivity obtained in the Al matrix composites reinforced with 100 mu m diamond particles with coatings. Based on the Hasselman and Johnson (H-J) model, the thermal conductivity behavior of the Diamond/Al composites has been discussed. It indicates that the magnetron sputtering is a feasible and successful method to prepare thin and reliable tungsten coatings for the Diamond/Al composites. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：623 / 631

页数：9

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