Magnetism and phase-transitional analysis of nano-metal gadolinium  

作　　者：侯碧辉 刘凤艳 岳明 曾宏 

机构地区：[1]College of Applied Science,Beijing University of Technology [2]The Key Laboratory of Advanced Functional Materials,Ministry of Education,Beijing University of Technology

出　　处：《Journal of Rare Earths》2009年第6期1018-1022,共5页稀土学报（英文版）

基　　金：supported by the National Basic Research Program of China (2006CB705601);the National Natural Science Foundation of China (50771002)

摘　　要：The structures,grain sizes and magnetism were analyzed and computed for three typical samples:the stock of polycrystalline metal Gd(sample 1),the bulk nanocrystalline Gd prepared by spark plasma sintering(SPS) technique and subjected to the annealing process of 623 K for 0.5 h(sample 2) and the bulk nanocrystalline Gd prepared by the SPS technique at 573 K(sample 3).The computation results indicated that the sample 3 had the efficiency of space filling up to 99.38%.The computation results of magnetization i...The structures,grain sizes and magnetism were analyzed and computed for three typical samples:the stock of polycrystalline metal Gd(sample 1),the bulk nanocrystalline Gd prepared by spark plasma sintering(SPS) technique and subjected to the annealing process of 623 K for 0.5 h(sample 2) and the bulk nanocrystalline Gd prepared by the SPS technique at 573 K(sample 3).The computation results indicated that the sample 3 had the efficiency of space filling up to 99.38%.The computation results of magnetization i...

关 键 词：GADOLINIUM FERROMAGNETISM ANTIFERROMAGNETISM PHASE-TRANSITION nanocrystal rare earths 

分 类 号：TB383.1[一般工业技术—材料科学与工程]