摘要
用高分辨透射电子显微镜对内氧化产生的Cu/MgO界面进行了研究,观察到了取向关系相同的两种不同界面,并运用近重位点阵模型对其界面结构进行了研究,求出了失配位错的3个Burgers矢量和次级位错的3个Burgers矢量。
The high resolution images of Cu/MgO interface which was prepared by internal oxidation of Cu-Mg alloys were observed by Transmission Electron Microscopy (TEM), and observed two different interfaces while their orientation keeps unchanged. Their structures were determined to agree with the theory of near coincidence site lattices, and their Burgers vectors of misfit dislocation and secondary dislocation were calculated to be (b) over right arrow (1) = 1/4[011](MgO), (b) over right arrow (2) = 1/2[100]Cu, (b) over right arrow (3) = 1/4[011]MgO;(b) over right arrow1' = 1/12[101](Cu) (or 1/99 [755]MgO), (b) over right arrow (2)' [101](Cu) (or 1/99[755](MgO)), b(3)' = 1/6[010](Cu) (or 1/10[011]MgO) respectively.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第3期234-236,共3页
Acta Metallurgica Sinica
基金
国家自然科学基金资助项目10074052和60271028
关键词
Cu/MgO界面
近重位点阵
失配位错
Cu/MgO interface
near coincidence site lattice
misfit dislocation