...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Key engineering materials >Effects of Pore Morphology on the Fabrication and Mechanical Properties of Porous Si_3N_4 Ceramics
【24h】

Effects of Pore Morphology on the Fabrication and Mechanical Properties of Porous Si_3N_4 Ceramics

机译：Effects of Pore Morphology on the Fabrication and Mechanical Properties of Porous Si_3N_4 Ceramics

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

Porous Si_3N_4 ceramics with different pore morphology have been fabricated, utilizing either organic whiskers or starch as the fugitive agents, through slip-casting and die-pressing technique, respectively. The obtained porous ceramics have rod shaped or equiaxial pore morphology, originated from there two kinds of pore forming agents. The mechanical properties were investigated. The strength decreased considerably when small amount of whiskers were added, however, further increase in the whisker content only cause a moderate decrease of the strength. Gas permeability were measured for the samples with high whisker content of 60 vol (corresponding to porosity of about 45 in the sintered bodies), and was compared with the counterpart contained the same porosity in which pores were equiaxial. The flexural strength of the samples with these two types of fugitive particles was almost the same, but the permeability of samples with rod-shaped pores were much higher than that with equiaxial pores, which can be understood in terms of a short pass model.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号