Thermal expansion and mechanical properties of Al/Si composites fabricated by pressure infiltration

摘要：

High reinforcement content Al/Si composites were fabricated by pressure infiltration technology.The composites are free of porosity and silicon particles distribute uniformly in the composites.The properties and fracture behavior of the composites were studied.The composites fracture is aroused by silicon brittle fracture and extends to the composites inward through the metallurgical structure and fracture analysis.The thermal expansion behavior of the composites was investigated by a high-precision thermomechanical analyzer，and compared with the predictions of theoretical model.The mean linear coefficient of thermal expansion (CET) of Al/Si composites ranges from 8×106 to 10×106/ and decreases with ℃ increasing silicon volume fraction.

关键词： Al/Si composites CET fracture pressure infiltration

作者: ZHENG Jing SONG Wen-juan MA Guang JIA Zhi-hua

作者单位: Electronic Material Research Centre,Northwest Institute for Nonferrous Metal Research,Xi’an 710016,C School of Materials Science and Engineering,Xi’an University of Technology,Xi’an 710048,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）