Thermal conductivity and mechanical properties of flake graphite/copper composite with a boron carbide-boron nano-layer on graphite surface

被引：71

作者：

Bai, H. ^{[1
,2
]}

Xue, C. ^{[2
]}

Lyu, J. L. ^{[2
]}

Li, J. ^{[3
]}

Chen, G. X. ^{[2
]}

Yu, J. H. ^{[2
]}

Lin, C. T. ^{[2
]}

Lv, D. J. ^{[1
]}

Xiong, L. M. ^{[1
]}

机构：

[1] Yangtze Opt Fibre & Cable Joint Stock Ltd Co, State Key Lab Opt Fiber & Cable Manufacture Techn, Wuhan 4300, Hubei, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, Ningbo 315201, Zhejiang, Peoples R China

[3] Beijing Inst Spacecraft Syst Engn, Beijing 100094, Peoples R China

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2018年 / 106卷

基金：

中国国家自然科学基金;

关键词：

Metal-matrix composites; Surface treatments; Thermal properties; MANAGEMENT APPLICATIONS; PREFERRED ORIENTATION; CU/DIAMOND COMPOSITES; DIAMOND PARTICLES; MICROSTRUCTURE; FABRICATION; PRETREATMENT; INTERFACE; EXPANSION; BLOCKS;

D O I：

10.1016/j.compositesa.2017.11.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Graphite/copper composites had attracted significant recent attention for thermal management applications due to their superior thermal properties, low cost and. ease of machining. However, achieving the enhancement of mechanical properties of composites with high thermal conductivity remained challenging. In this study, graphite/copper composites had been produced by vacuum hot pressing process, in which the boron carbide-boron coating was synthesized on graphite to improve the mechanical properties of copper matrix composites with high volume fraction of graphite. The resulting composites had superior thermal conductivity (676 W/mK, 180% of copper) and apposite coefficient of thermal expansion (7.1 ppm/K), which was attributed to the homogeneous dispersion and well-controlled alignment of graphite in the composite. And the results, showed that the coating on graphite slightly decreased the thermal conductivity and coefficient of thermal expansion of the composites, but evidently improved the bending strength. The flexural strength raised to 74 MPa, 42% increased with that of uncoated composite. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：42 / 51

页数：10

共 43 条

[1] Control of the in-plane thermal conductivity of ultra-thin nanocrystalline diamond films through the grain and grain boundary properties [J].

Anaya, Julian ;

Rossi, Stefano ;

Alomari, Mohammed ;

Kohn, Erhard ;

Toth, Lajos ;

Pecz, Bela ;

Hobart, Karl D. ;

Anderson, Travis J. ;

Feygelson, Tatyana I. ;

Pate, Bradford B. ;

Kuball, Martin .

ACTA MATERIALIA, 2016, 103 :141-152

[2]

[Anonymous], 2008, 2200742008 ISO

[3] Nucleation and growth of boron nanowires on diamond particles [J].

Bai, H. ;

Zou, H. H. ;

Chen, G. X. ;

Yu, J. H. ;

Nishimura, K. ;

Dai, W. ;

Jiang, N. .

APPLIED SURFACE SCIENCE, 2014, 313 :132-137

[4] Effect of a new pretreatment on the microstructure and thermal conductivity of Cu/diamond composites [J].

Bai, Hua ;

Ma, Nangang ;

Lang, Jing ;

Zhu, Congxu .

JOURNAL OF ALLOYS AND COMPOUNDS, 2013, 580 :382-385

[5] Thermal conductivity of Cu/diamond composites prepared by a new pretreatment of diamond powder [J].

Bai, Hua ;

Ma, Nangang ;

Lang, Jing ;

Zhu, Congxu ;

Ma, Yi .

COMPOSITES PART B-ENGINEERING, 2013, 52 :182-186

[6] Microstructural study of vapour grown carbon nanofibre/copper composites [J].

Barcena, Jorge ;

MaudeSa, Jon ;

Coletoa, Javier ;

Baldonedo, Juan L. ;

de Salazar, Jose M. Gomez .

COMPOSITES SCIENCE AND TECHNOLOGY, 2008, 68 (06) :1384-1391

[7] Heat transport across the metal-diamond interface [J].

Battabyal, M. ;

Beffort, O. ;

Kleiner, S. ;

Vaucher, S. ;

Rohr, L. .

[8] Nanoplatelet Size to Control the Alignment and Thermal Conductivity in Copper-Graphite Composites [J].

Boden, Andre ;

Boerner, Benji ;

Kusch, Patryk ;

Firkowska, Izabela ;

Reich, Stephanie .

NANO LETTERS, 2014, 14 (06) :3640-3644

[9] Fabrication of highly ordered polymer/graphite flake composite with eminent anisotropic electrical property [J].

Chen, Guohua ;

Wang, Haiquan ;

Zhao, Weifeng .

POLYMERS FOR ADVANCED TECHNOLOGIES, 2008, 19 (08) :1113-1117

[10] Thermal properties of aluminum-graphite composites by powder metallurgy [J].

Chen, J. K. ;

Huang, I. S. .

COMPOSITES PART B-ENGINEERING, 2013, 44 (01) :698-703

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