作者：TOSHIYUKI NISHIMURA;XIN XU;NAOTO HIROSAKI;

作者单位：National Institute for Materials Science

刊名：Journal of the Technical Association of Refractories

ISSN：0285-0028

出版年：2007-01-05

卷：27

期：2

起页：141

止页：0

分类号：TQ175

语种：英文

关键词：

内容简介

Silicon nitride (Si_3N_4) ceramics are expected to be useful as high-temperature structural materials because of their high creep resistance. Plasticity of small grain size silicon nitride ceramics is already known at temperature lower than the sintering temperture. Recently, surprising improvement in properties is expected through development of nanometer scale microstructure by nano-technology. This paper reports fabrication of silicon nitride ceramics with nanometer scale grain size and the measurement of compressive deformation to improve plasticity.