Fabrication of tungsten-copper alloys by microwave hot pressing sintering

被引：61

作者：

Xu, Lei ^{[1
,2
]}

Srinivasakannan, C. ^{[3
]}

Zhang, Libo ^{[1
]}

Yan, Mi ^{[4
]}

Peng, Jinhui ^{[1
]}

Xia, Hongying ^{[1
]}

Guo, Shenghui ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, State Key Lab Complex Nonferrous Met Resources Cl, Kunming 650093, Peoples R China

[2] Univ Washington, Mech Engn, Seattle, WA 98195 USA

[3] Petr Inst, Chem Engn Program, Abu Dhabi, U Arab Emirates

[4] UCL, Fac Math & Phys Sci, London WC1E 6BT, England

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 658卷

基金：

中国国家自然科学基金;

关键词：

Microwave heating; Hot pressing sintering; Tungsten-copper alloy; Microstructure; W-CU COMPOSITE; MECHANICAL-PROPERTIES; DENSIFICATION; KINETICS; MICROSTRUCTURE; PRESSURE;

D O I：

10.1016/j.jallcom.2015.10.186

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：

The tungstenecopper alloys were prepared and characterized utilizing pressureless microwave sintering and hot pressure microwave sintering. The performance of tungstenecopper alloy was assessed based on the relative density and hardness. The influence of different pressure and copper content on the microstructure of tungsten copper alloy has been investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Experimental results indicate tungstenecopper alloy with excellent performance under microwave hot press sintering. The relative density of the alloy was estimated to be 98.14% at a sintering temperature of 1100 degrees C, applied pressure of 30 MPa for duration of 1 h. The relative density was found to increase with increase in the applied pressure. The microstructure of tungsten -copper alloy sintered by microwave hot press method was more uniform having a compact matrix. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：23 / 28

页数：6

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