准晶合金形成规律的探讨  

A Method for Predicting Formation of Quasicrystalline Alloys

作　　者：王玲玲[1] 黄维清 邓辉球[1] 李小凡[1] 唐黎明[1] 赵立华[1] 

机构地区：[1]湖南大学,湖南长沙410082

出　　处：《稀有金属材料与工程》2003年第11期889-892,共4页Rare Metal Materials and Engineering

基　　金：国家自然科学基金资助(18874018)

摘　　要：利用Miedema参数ΔΦ*和Δnws-1/3构成坐标系统,探讨了准晶合金形成规律。对已有实验结果的31个二元、48个三元准晶合金进行了系统的分析,同时与利用化学镀及电镀方法制备的二元合金系中的47个非晶、32个晶态;三元合金系的54个非晶、12个晶态合金进行了比较。结果表明:在给定的准晶合金形成区内,区分二元准晶、非晶以及晶态合金形成的准确率分别为93.5%、87.2%和72.7%;区分三元合金形成的准确率分别为97.9%、87.0%和75.0%。该判据对于定性地研究及寻找新型准晶合金开辟了一条新的途径,在材料研究领域具有一定的理论指导意义。The regularities of formation of quasicrystalline alloys have been studied successfully by the Miedema coordinates DeltaPhi(*) similar to Deltan(ws)(-1/3). The experimental data of 31 binary and 48 ternary quasicrystalline alloys were analyzed. The results were compared with 47 amorphous and 32 crystalline state alloys of binary, 54 amorphous and 12 crystalline state alloys of ternary systems prepared by electroless and electrodeposition. It is shown that the accuracy is larger than 93.5%, 87. 2%, 72.7% in quasicrystalline, amorphous, crystalline state of binary and larger than 97.9%, 87.0%, 75.0% in quasicrystalline, amorphous, crystalline state of ternary alloys, respectively. This criterion develops a new approach for qualitative studying and searching new quasicrystalline alloys. So it possesses an important meaning for the theoretical guidance in materials research field.

关 键 词：准晶多元合金 形成规律 MIEDEMA理论 

分 类 号：TG139[一般工业技术—材料科学与工程]