W-Cu Composite with High W Content Prepared by Grading Rounded W Powder with Narrow Particle Size Distribution

被引：4

作者：

Chen, Zheng ^{[1
,2
]}

Li, Bingxue ^{[1
]}

Zhang, Qiao ^{[1
,2
]}

Hu, Xudong ^{[1
]}

Ding, Yi ^{[3
]}

Zhu, Zhixiang ^{[3
]}

Xiao, Peng ^{[1
,2
]}

Liang, Shuhua ^{[1
,2
]}

机构：

[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China

[2] Xian Univ Technol, Shaanxi Prov Key Lab Elect Mat & Infiltrat Techno, Xian 710048, Peoples R China

[3] Global Energy Interconnect Res Inst Co Ltd, State Key Lab Adv Power Transmiss Technol, Beijing 102209, Peoples R China

来源：

MATERIALS | 2022年 / 15卷 / 05期

基金：

中国国家自然科学基金;

关键词：

W-Cu composite; high W content; gradation; jet milling; infiltration; THERMAL-PROPERTIES; TUNGSTEN POWDERS; FABRICATION; MICROSTRUCTURE; INFILTRATION; MECHANISM; ACTIVATOR; BEHAVIOR; NI;

D O I：

10.3390/ma15051904

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 this study, the W (10-20%)-Cu composites were simultaneously fabricated using commercial, graded commercial, and graded jet-milled W powder. The results show that the W-Cu composites prepared with the graded jet-milled W powders have the highest density and best comprehensive performance due to the combined effect of the particle gradation and jet-milling treatment. Particle gradation is employed to increase the packing density of powders, thereby increasing the relative density of the compressed W skeleton, and the rounded powder with narrow particle size distribution after jet-milling treatment is used to reduce the enclosed pores formed during the process of compacting and infiltration. W-Cu composites with a high density of 16.25 g/cm(3) can be directly obtained by conventional compacting at a low pressure of 300 MPa and following infiltration.

引用

页数：13

共 27 条

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