Prediction of Critical Pressure in the Preparation of Composites by Vacuum-Pressure Infiltration Process

摘要：

　　The SiC3D/Al composite with high SiC content were prepared by vacuum-pressure infiltration process,and the prediction model of infiltration pressure threshold involving capillary pressure and viscous resistance was established.The effects of model parameters on the critical infiltration pressure were analyzed.The results show that the main factors are the specific permeability of SiC performs and the temperature of molten aluminum alloy.Temperature affects the melt viscosity and the wetting angle between SiC and molten alloy.The infiltration pressure threshold of the specific infiltration system had been calculated by this model,which is in agreement with experimental results.

关键词： Porous performs SiC3D/Al composites Vacuum-pressure infiltration

作者: Mingtao Huang Yangwei Wang Fuchi Wang Jubin Gao

作者单位: School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China National Key Laboratory of Science and Technology on Materials under Shock and Impact,Beijing 100081

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 427-430

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）