Synthesis and Sintering of ZrNiSn-based Half-Heusler Compounds  

作　　者：QiangSHEN LianmengZHANG LidongCHEN TakashiGOTO ToshioHIRAI 

机构地区：[1]StateKeyLab.ofAdvancedTechnologyforMaterialsSynthesisandProcessing,WuhanUniversityofTechnology,Wuhan430070,China [2]InstituteforMaterialsResearch,TohokuUniversity,Katahira2-1-1,Aobaku,Sendal980-77,Japan

出　　处：《Journal of Materials Science & Technology》2003年第5期511-512,共2页材料科学技术（英文版）

摘　　要：In contrary to the commonly used arc melting method, samples in the present paper were prepared by the solid state reaction from elemental powders at 1173 K under a flowing Ar atmosphere for 96-168 h. The constituent phases and the elemental compositions were determined and shown that the samples were of single phase and stoichiometry. Then the spark plasma sintering technique was used to consolidate them. It is found that, dense ZrNiSn-based compounds with fine grain size and homogeneous microstructure were achieved under the condition of 1123 K/40 MPa/25 min.In contrary to the commonly used arc melting method, samples in the present paper were prepared by the solid state reaction from elemental powders at 1173 K under a flowing Ar atmosphere for 96-168 h. The constituent phases and the elemental compositions were determined and shown that the samples were of single phase and stoichiometry. Then the spark plasma sintering technique was used to consolidate them. It is found that, dense ZrNiSn-based compounds with fine grain size and homogeneous microstructure were achieved under the condition of 1123 K/40 MPa/25 min.

关 键 词：ZRNISN Half-Heusler compounds Solid state reaction Spark plasma sintering 

分 类 号：TB33[一般工业技术—材料科学与工程]