Microstructure and mechanical properties of Lu2O 3-doped porous silicon nitride ceramics using phenolic resin as pore-forming agent

Xiaowei Yin, Xiangming Li, Litong Zhang, Laifei Cheng, Yongsheng Liu, Tianhao Pan

科研成果: 期刊稿件文章同行评审

48 引用 (Scopus)

摘要

The joint process consisting of pressureless sintering and chemical vapor infiltration (CVI) was developed to prepare porous Si3N4 ceramics with controlled microstructure. Lu2O3 and phenolic resin acted as sintering aid and pore-forming agent, respectively. The 5 wt% Lu2O3-doped ceramics using 12-57 vol% phenolic resin attained a porosity ranging from 46% to 53%. With increasing the resin content, the average pore size increased from 1 to 2 μm. The porous ceramic infiltrated with CVI Si3N4 had an improved microstructure. The decreased pore size and porosity led to an increase in flexural strength, and the densified surface led to an improved surface hardness.

源语言英语
页(从-至)391-398
页数8
期刊International Journal of Applied Ceramic Technology
7
3
DOI
出版状态已出版 - 2010

指纹

探究 'Microstructure and mechanical properties of Lu2O 3-doped porous silicon nitride ceramics using phenolic resin as pore-forming agent' 的科研主题。它们共同构成独一无二的指纹。

引用此