摘要
本文研究用真空压力浸渍法制造的Ｃ／纯Ａｌ和Ｃ／Ａｌ－Ｃｕ两种复合材料界面微观结构的差异。探求合金化元素Ｃｕ的作用本质。结果表明，Ｃ／Ａｌ－Ｃｕ复合材料界面存在有ＣｕＡｌ＿２、Ａｌ＿４Ｃ＿３、ＡｌＣｕ三种脆性化合物，还发现ＣｕＡｌ＿２对Ａｌ＿４Ｃ＿３的形核影响不明显，但对它的长大有抑制作用。正是由于这种影响，使Ｃ／Ａｌ－Ｃｕ复合材料的耐用温度提高。
he interfacial micarostructure of C/Al-Cu was compared with of C/Al by using TEM and SEM,The mechanism of copper addition in the matrix was studied. It was showing that three kinds of brittle com-pounds,CuAl_2 Al_4C_3and AlCu were on the interface It was also found that CuAl_2 did not obviously af-fec the nucleation of Al_4C_3,but decreased the growth of Al_4C_3,For this reason,C/Al-Cu composite could be used at higher temperature.
出处
《材料工程》
EI
CAS
CSCD
北大核心
1994年第1期1-3,共3页
Journal of Materials Engineering
基金
国家自然科学基金项目
关键词
碳纤维
铝合金
复合材料
微结构
Alloying
Fiber reinforced metals
Heat resistance
High temperature effects
Interfaces (materials)
Metallic matrix composites
Microstructure
