摘要
采用真空条件 ,用 Cu O作氧化剂 ,在一定的温度下使 Cu- Al合金内氧化 ,获得 Al2 O3/Cu表面复合材料。金相分析发现 ,在较低温度下内氧化 ,表面复合层中 Al2 O3颗粒晶界处多于晶内 ;在较高温度下内氧化 ,复合层中Al2 O3颗粒呈弥散状分布 ;表面复合层厚度随 Al含量的增加而减薄 ,显微硬度随
Under vacuum condition, with CuO as oxidizer, Al2O3/Cu surficial composites layer can be prepared through internal oxidation of Cu-Al alloy at certain temperatures. At low internal oxidation temperatures, there are more Al2O3 particles on the boundary than in the copper grains. At higher temperatures, Al2O3 particles distribute homogeneously. With the increasing of aluminium content, the depth of the composite layer reduces and the microhardness increases.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2001年第3期56-59,共4页
Acta Materiae Compositae Sinica
基金
陕西省自然科学基金 ( 99C2 1)
陕西省教委专项科学基金 ( 99JK2 2 5 )
