Thermal expansion behavior of a β-LiAlSiO4/Cu composite
来源期刊：Rare Metals2009年第1期
论文作者：WANG Lidong, XUE Zongwei, LIU Zhe, and FEI Weidong School of Materials Science and Engineering, Harbin Institute of Technology, Harbin , China
文章页码：82 - 85
摘 要：A copper matrix composite reinforced by β-LiAlSiO4 with negative thermal expansion coefficient was fabricated using vacuum hot-pressed sintering technique. The thermal expansion behavior of the composite was investigated, and the average residual stress in the matrix was analyzed by a simple model. The results indicate that the residual stress in the matrix affects the thermal expansion properties. After heat treatment, the coefficient of thermal expansion （CTE） of the composite decreases greatly. The CTE of the composite after thermal cycling between 50-350°C is the lowest.
摘要：A copper matrix composite reinforced by β-LiAlSiO4 with negative thermal expansion coefficient was fabricated using vacuum hot-pressed sintering technique. The thermal expansion behavior of the composite was investigated, and the average residual stress in the matrix was analyzed by a simple model. The results indicate that the residual stress in the matrix affects the thermal expansion properties. After heat treatment, the coefficient of thermal expansion （CTE） of the composite decreases greatly. The CTE of the composite after thermal cycling between 50-350°C is the lowest.
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