Study on Microstructures and Properties of Porous TiC Ceramics Fabricated by Powder Metallurgy

被引：9

作者：

Ma, Yana ^{[1
]}

Bao, Chonggao ^{[1
]}

Han, Longhao ^{[1
]}

Chen, Jie ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2017年 / 26卷 / 02期

基金：

中国国家自然科学基金;

关键词：

microstructures; porous ceramic; powder metallurgy; properties; space-holder; titanium carbide; TITANIUM CARBIDE; COMPOSITE;

D O I：

10.1007/s11665-016-2472-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Powder metallurgy process was used to fabricate porous titanium carbide (TiC) ceramics, in which TiC powders were taken as the raw materials, nickel was used as the metallic binder and urea was the space-holder. Microstructure, composition and phase of porous TiC ceramics were characterized by scanning electron microscopy (SEM) and x-ray diffraction (XRD). Flexure strength of the porous TiC ceramics was tested by a three-point bending method. The results show that macropores and micropores coexist in the prepared porous TiC ceramics. Moreover, the pore number, size and distribution in porous TiC ceramics can be controlled on demand. Particularly, the factors such as the number or size of space-holder, compacting pressure and Ni content have significant effect on the porosity and flexure strength.

引用

页码：636 / 643

页数：8