MECHANISM AND MICROSTRUCTURE TRANSFORMATION OF 3D-Si/LG5 COMPOSITES BY HIGH TEMPERATURE DIFFUSION TREATMENT

摘要：

A dense and uniform Sip/LG5 composite were fabricated by squeeze casting technology, and high temperature diffusion treatment was adapted to the composite. Microstructure observation indicated that Si transformed from irregular particles to 3D-structure. Fine dispersive precipitates Si were also observed on Si-Al interface and within Al matrix, smoothing and improving the interface. Based on the microstructure observation, three transformation stages were designated: melting, dissolution and precipitation, solidification. Thermodynamics and kinetics of the transformation can be explained by Gibbs-Thomson effect.

关键词： Sip/LG5 composite high temperature diffusion 3D-structure Gibbs-Thomson effect

作者: ZIYANG XIU ZONGQUAN DENG XIAOFENG WANG GAOHUI WU

作者单位: Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin, Peopl School of Mechanical and Electronical Engineering, Harbin Institute of Technology, Harbin, Peoples School of Material Science and Engineering, Harbin Institute of Technology, Harbin, Peoples Republi

会议类型: 国际会议

会议名称: 第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)

会议地点: 哈尔滨

会议语种:英文

页码: 1473-1478

在线出版日期: 2008-09-03（万方平台首次上网日期，不代表论文的发表时间）