文章编号:1004-0609(2001)S2-0131-04
Zn基合金中CuZn4化合物在SiC颗粒上的形成机理
(洛阳工学院 材料科学与工程系, 洛阳 471039)
摘 要: 通过高分辨透射电镜和带能谱透射电镜观察,经选区电子衍射和微区化学成分分析,发现ZnAl27复合材料中,SiC颗粒周边存在着大量的CuZn4化合物。CuZn4依附于SiC颗粒形核,其沿SiC晶面长大速率大于垂直方向的长大速率。
关键字: 锌基合金; SiC颗粒; CuZn4化合物
Formation mechanism of CuZn4 compound on
SiC particle in ZnAl27 composite
SiC particle in ZnAl27 composite
(Department of Materials Science and Engineering,
Luoyang Institute of Technology, Luoyang 471039, P.R.China)
Abstract:It was found that CuZn4 can nucleate on the surface of SiC particle and grow up at higher speed along SiC than the vertical direction through selected area electron diffraction and EDS analysis by means of HREM and AEM.
Key words: zinc-based allay; SiC particle; CuZn4 compound