New route to densify tantalum carbide at 1400 °C by spark plasma sintering

被引：37

作者：

Liu, Limeng ^{[1
]}

Ye, Feng ^{[1
]}

Zhou, Yu ^{[1
]}

机构：

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

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 13-14期

基金：

中国博士后科学基金;

关键词：

Tantalum carbide; Spark plasma sintering; Densification; MECHANICAL-PROPERTIES; CERAMICS; DENSIFICATION; COMPOSITES; BEHAVIOR; TAC; MICROSTRUCTURE; ADDITIVES; SYSTEM;

D O I：

10.1016/j.msea.2011.02.074

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Tantalum carbide with a TaC(0.9) composition was sintered to 96% relative density by spark plasma sintering at 1400 degrees C for 5 min, using commercial micrometric Ta and TaC powders as the starting materials. This achievement was dependent on the delicate rearrangement of the heating process which limits evaporation-condensation and promotes the mass transportation in association with 0.9TaC + Ta = TaC(0.9) reaction. The dense TaC(0.9) ceramic had a uniform microstructure composed of equiaxed grains, and showed flexure strength up to similar to 498 MPa. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：4710 / 4714

页数：5

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