摘要
本文研究使用Ｃｕ－０．３ｌ％Ａｌ合金水雾化粉末，其粒度为７４μｍ以下（─２００目），进行内氧化处理得到Ｃｕ－Ａｌ２Ｏ３粉末，经等静压压坯→烧结→裸锭热挤压→冷轧工艺制造的材料密度为８．８ｇ／ｃｍ３，强度σｂ为６０８ＭＰａ，硬度ＨＶ为５２９ＭＰａ，电阻率ρ为２．２μｃｍ。对材料的金属膜电镜分析表明：组织中分布看γ－Ａｌ２Ｏ３微粒，它的平均尺寸１５０Ａ，微粒间距离约２００Ａ左右。
In this paper,inner-oxidizing of Cu-0. 31%Al alloy wateratomized powder and Cu-Al2O3 composite made from the powder was studied.The material was manufactured using powder metallurgy processing and its main properties are as follows:σb=608MPa,HV=1529MPa,resistivity=2.2·cm,density=8. 8g/cm3;The materials were characterized by TEM,The results show that the γ-Al2O3 are well distributed in the Cu-base;their mean size and the distance between these particles are approximately l50Aand 200A respectively.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
1996年第2期42-47,共6页
Acta Materiae Compositae Sinica
关键词
铜-铝
复合材料
内氧化
dispersion hardening,composite materials,inner-oxidizing
