Fabrication of W-1 wt.% TiC composites by spark plasma sintering

被引：26

作者：

Ding, Xiao-Yu ^{[1
]}

Luo, Lai-Ma ^{[1
,3
]}

Chen, Hong-Yu ^{[1
]}

Luo, Guang-Nan ^{[2
]}

Zhu, Xiao-Yong ^{[1
,3
]}

Zan, Xiang ^{[1
,3
]}

Cheng, Ji-Gui ^{[1
,3
]}

Wu, Yu-Cheng ^{[1
,3
]}

机构：

[1] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China

[2] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

[3] Labs Nonferrous Met Mat & Proc Engn Anhui Prov, Hefei 230009, Peoples R China

来源：

FUSION ENGINEERING AND DESIGN | 2015年 / 92卷

基金：

中国国家自然科学基金;

关键词：

W-TiC composites; Chemical reduction; Spark plasma sintering; Thermal conductivity; MECHANICAL-PROPERTIES; TUNGSTEN;

D O I：

10.1016/j.fusengdes.2015.01.003

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

TiC/W ultra-fine powders were produced by one-step activation and chemical reduction process. The powders were consolidated by spark plasma sintering (SPS) at 1800 degrees C to suppress grain growth during sintering. The grain size, relative density and the Vicker hardness HV0.2 of the bulk sample fabricated by SPS were 3 pm, 98.6% and 471, respectively. The reduced Young's elastic modulus of the sintered W-1 wt.% TiC composites was 382.7 GPa. As the temperature rises from room temperature (RT) to 1100K, the thermal conductivity of pure W and W-1 wt.% TiC composites decreased with the same trend. However, the thermal conductivity of the samples was both above 120 W/m K at RT. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：29 / 34

页数：6

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