Fabrication and mechanical properties of porous TiB2 ceramic

被引：14
作者：
Changqing Hong [1 ]
Xinghong Zhang
Jiecai Han
Baolin Wang
机构：
[1] Harbin Inst Technol, Ctr Composite Mat & Struct, Harbin 150001, Peoples R China
[2] Anhui Univ Technol & Sci, Wuhu 241000, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2006年 / 41卷 / 15期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1007/s10853-006-0040-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Porous material of TiB2 with improved mechanical properties was fabricated by vacuum and pressureless sintering. The microstructure of the porous ceramic was characterized by the enhanced neck growth between the initially touching particles. This neck growth was ascribed to the selective heating of TiB2 particles with different dimension. The porous structure prepared by the high-temperature sintering exhibited higher bending strength and fracture toughness in the present experiment. The improved mechanical properties of the sintered composites were attributable to the enhanced neck growth by surface diffusion.
引用
收藏
页码：4790 / 4794
页数：5
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