Transpirational Performance of Oriented Porous SiC Transpiration Cooling Materials

摘要：

　　The application and the transpirational behavior of oriented porous SiC as transpiration cooling materials in a simulating test were studied.The test sample was shaped by freeze-casting process and reaction sintered.The testing device was composed by an electric arc combustor and a hydrogen coolant providing system.It was found that the permeability,the amount of coolant required and the uniformity of coolant infiltration were all effected by the microstructure of porous SiC,which furthermore influced the cooling efficiency of the testing system.In this test,the inner face temperature of the combustion chamber was maintained less than 400K throughout the thermal testing period contrasting with the fire temperature up to 3600K by the utilization of oriented porous SiC transpiration cooling materials.

关键词： Oriented Porous SiC Transpiration Cooling

作者: Jie Tang Yufeng Chen Jiguo Sun Hua Wang Hailin Liu

作者单位: China Building Materials Academy,Beijing,China 100024 Beijing Aerospace Propulsion Institute,Beijing,China 100076

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 837-839

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）