Preparation and mechanism study of bulk pure rare-earth metals with amorphous and nanocrystalline structures
作者: ErDong LiXiaoYan SongJiuXing ZhangNianDuan Lu
作者单位: 1College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology
刊名: Chinese Science Bulletin, 2007, Vol.52 (3), pp.418-422
来源数据库: Springer Journal
DOI: 10.1007/s11434-007-0056-9
关键词: rare-earth nano materialsamorphous bulknanocrystallizationspark plasma sintering
英文摘要: Abstract(#br)The preparation and the mechanism study of bulk pure rare-earth metals with amorphous and nanocrystalline structures, which were produced by spark plasma sintering (SPS), were carried out in this paper. With different processing parameters, the amorphous, two phases of amorphous and nanocrystalline, and complete nanocrystalline microstructures have been obtained. The nano-grain sizes in the bulk nanocrystalline materials are found smaller than the original powder particles sizes, which may change the conventional viewpoint that the grains in the sintered bulk are generally coarser than the raw powder particles. The technique developed in the present work can be extended to the preparation of many other nano bulk metal materials, and thus enables the studies of the nano-size...
全文获取路径: Springer  (合作)
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影响因子:1.319 (2012)

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关键词翻译
关键词翻译
  • amorphous 非晶质的
  • mechanism 机构
  • study 学习
  • earth 地球