Fabrication and mechanical properties of porous TiB2 ceramic
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- 作者：Changqing Hong ; Xinghong Zhang ; Jiecai Han and Baolin Wang
- 刊名：Journal of Materials Science
- 出版年：2006
- 出版时间：August, 2006
- 年：2006
- 卷：41
- 期：15
- 页码：4790-4794
- 全文大小：222 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Materials Science
Characterization and Evaluation Materials
Polymer Sciences
Continuum Mechanics and Mechanics of Materials
Crystallography
Mechanics - 出版者：Springer Netherlands
- ISSN：1573-4803
文摘
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.