...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Key engineering materials >Tribological Characteristics Manufactures SiC by Liquid Phase Sintered Method
【24h】

Tribological Characteristics Manufactures SiC by Liquid Phase Sintered Method

机译：Tribological Characteristics Manufactures SiC by Liquid Phase Sintered Method

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

SiC materials have excellent high temperature strength, low coefficient of thermal expansion, good resistance to oxidation and good thermal and chemical stability etc. In this study, monolithic liquid phase sintered SiC (LPS-SiC) was made by hot pressing method with nano-SiC powder an average particle size is 30nm and less. Alumina (Al_2O_3), yttria (Y_2O_3) and silica (SiO_2) particles were used for sintering additives. To investigate effects of SiO_2, Al_2O_3/Y_2O_3 composition was fixed and then ratios of SiO_2 were changed as seven kinds. Materials have been sintered for 1 hour at 1760℃, 1780℃ and 1800℃ under the pressure of 20MPa. The system of sintering additives which affects a property of sintering as well as the influence depending on compositions of sintering additives were investigated by measurement of density, mechanical properties such as Vickers hardness and sliding wear resistance were investigated to make sure of the optimum condition which is about matrix of SiC_f/SiC composites. The abrasion test condition applies to load of 20N at 100rpm for 20min. Sintered density, abrasion property of fabricated LPS-SiC increased with increasing the sintering temperature. In case of LPS-SiC with low SiO_2 content, has very excellent wear resistance.

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