• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Ceramic microstructures : Control at the atomic level >CONTROL OF INTERFACE FRACTURE IN SILICON NITRIDE CERAMICS: INFLUENCE OF DIFFERENT RARE EARTH ELEMENTS
【24h】

CONTROL OF INTERFACE FRACTURE IN SILICON NITRIDE CERAMICS: INFLUENCE OF DIFFERENT RARE EARTH ELEMENTS

机译：氮化硅陶瓷界面断裂的控制：不同稀土元素的影响

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

摘要

In Si_3N_(4(whisker))/oxynitride-glass model systems, interfacial debonding behavior is determined by the interfacial microstructure and chemistry. In Si-Al-RE(Y)-O-N glasses, the interfacial debonding energy increases significantly with SiAlON formation. Al-free glasses enhances interfacial debonding by inhibiting SiAlON formation. Compared to the interfacial microstructure/chemistry, the residual thermal mismatch stresses is a secondary influence on the debonding behavior. In systems without SiAlON formation, the residual stresses modify the debonding length. In self-reinforced silicon nitride ceramics, a higher yttria to alumina additive ratios resulted in a higher steady state toughness. Sophisticated experimental and analytical-modeling work are required to understand the influence of the residual stresses on the interfacial fracture behavior in self-reinforced silicon nitride ceramics.
机译：在Si_3N_（4（晶须））/氮氧化物-玻璃模型系统中，界面剥离行为由界面微观结构和化学性质决定。在Si-Al-RE（Y）-O-N玻璃中，随着SiAlON的形成，界面剥离能显着增加。无铝玻璃通过抑制SiAlON的形成来增强界面剥离力。与界面微观结构/化学性质相比，残余的热失配应力是对剥离性能的次要影响。在没有形成SiAlON的系统中，残余应力会改变剥离长度。在自增强氮化硅陶瓷中，较高的氧化钇与氧化铝的添加比例导致较高的稳态韧性。需要进行复杂的实验和分析建模工作，以了解残余应力对自增强氮化硅陶瓷界面断裂行为的影响。

著录项

  • 来源
  • 会议地点 Berkeley CA(US)
  • 作者

    Ellen Y. Sun; Paul F. Becher; Shirley B. Waters; Chun-Hway Hsueh; Kevin P. Plucknett; Michael J. Hoffmann;

  • 作者单位

    Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge,Tennessee 37831-6068;

    Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge,Tennessee 37831-6068;

    Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge,Tennessee 37831-6068;

    Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge,Tennessee 37831-6068;

    Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge,Tennessee 37831-6068;

    University of Karlsruhe, Institute for Ceramics in Mechanical Engineering,Karlsruhe, Germany;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TQ174.01;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
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