三元合金相图上的团簇线和Al基准晶的成分规律  

Composition rules of Al-based quasicrystals:a cluster line apporach

作　　者：董闯[1] 王清[1] 羌建兵[1] 王英敏[1] 姜楠[1] 陈华[1] 

机构地区：[1]大连理工大学三束材料改性国家重点实验室,辽宁大连116024

出　　处：《电子显微学报》2007年第5期441-461,共21页Journal of Chinese Electron Microscopy Society

基　　金：国家自然科学基金资助项目(No.50671018;No.50401020;No.50631010).~~

摘　　要：本文利用团簇结构信息来探索Al基三元准晶的成分规律。首先以晶体金属间化合物为例,利用基于二元团簇的团簇线方法,解释了其成分。然后将此方法运用在Al-(Cu,Ni,Pd)-过渡族金属三元准晶系中。最后将团簇线的含义进一步归纳为普遍规律和基本理论。　The structural information in the 1 st nearest neighbor shell level,or atomic cluster,was used to explore the composition rules of Al-based ternary quasicrystals which are composed of elements with negative enthalpies of mixing.We first illustrated a crystalline intermetallic example,where our cluster line approach explains the ternary phase composition using two binary 1 st-shell clusters.Then we shown how this approach applied in Al-（Cu,Ni,Pd）-TM ternary quasicrystal systems.Finally we summarized the implications of the cluster line approach into more general rules and basic theories.

关 键 词：准晶 成份规律 原子团簇 相图 团簇线 结构 

分 类 号：TG113.14[金属学及工艺—物理冶金]