...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>日本セラミックス協会学術論文誌 >Hot-Corrosion Behavior of Silicon Nitride-Bonded Silicon Carbide
【24h】

Hot-Corrosion Behavior of Silicon Nitride-Bonded Silicon Carbide

机译：氮化硅键合碳化硅的热腐蚀行为

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, the hot-corrosion behavior of silicon nitride-bonded silicon carbide composite (SCN) in aluminum melt are studied especially on the similar environment to the actual working condition. The thermal shock resistance and cyclic thermal shock behavior of this composite are also studied. Pre-oxidized specimens corroded more extensively than as-cut specimens in Al melt at the same temperature. The specimens, which were pre-oxidized and immersed in Al melt, showed a severe reduction in their mean compressive strength. The mass changes of SCN oxidized at 850 deg C-1200 deg C followed parabolic kinetics but pore neck blocking happened at 1200 deg C. The activation energy was found to be 223 kJ/mol. In water quenching test of SCN composite, the critical thermal shock temperature difference was about 425 deg C. The repeated thermal stress by the cyclic heating and cooling caused the decrease in strength.
机译：在这项工作中，特别是在与实际工作条件相似的环境下，研究了氮化硅键合碳化硅复合材料（SCN）在铝熔体中的热腐蚀行为。还研究了该复合材料的耐热冲击性和循环热冲击行为。在相同温度下，铝熔体中的预氧化试样比原始试样腐蚀的范围更大。被预氧化并浸入铝熔体中的样品显示出其平均抗压强度的严重降低。在850℃至1200℃氧化的SCN的质量变化遵循抛物线动力学，但在1200℃发生了颈孔堵塞。活化能为223 kJ / mol。在SCN复合材料的水淬试验中，临界热冲击温差约为425℃。循环加热和冷却引起的反复热应力导致强度降低。

著录项

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