| Preparation and Structure of Mg2-xRExNi （RE = La, Ce, Pr, Nd, Y） Ternary Alloys |
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| 引用本文： | 王仲民,周怀营,顾正飞,成钢,余艾冰.Preparation and Structure of Mg2-xRExNi （RE = La, Ce, Pr, Nd, Y） Ternary Alloys[J].中国稀土学报(英文版),2004,22(2):263-267. |
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| 作者姓名： | 王仲民 周怀营 顾正飞 成钢 余艾冰 |
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| 作者单位： | [1]CenterofMaterialsScienceandEngineering,GuilinUniversityofElectronicTechnology,Guilin541004,China [2]CenterforSimulationandMoldelingofParticulateSystems,UNSW,Sydney,Australia |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina ( 5 0 1710 2 4)andGuangXiProvincialNaturalScience
Foundationundertheproject ( 0 13 5 0 5 3 ) |
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| 摘 要： | A series of Mg2-xNdxNi (x =0.05, 0.1, 0.2, 0.3) alloys and Mg1.95RE0.05Ni (RE= La, Ce, Pr, Nd, Y)ternary alloys were prepared by ball milling of mixted powder of Mg, Ni, RE and sintering under the protection of argon. XRD analysis shows that Mg2-xNdxNi (x = 0.05, 0.1 ) and Mg1.95RE0.05Ni consist of single phase with the same crystal structure as Mg2Ni. While three-phase alloys including Mg2Ni, NdNi and NdMgNi4 were formed in Mg1.8Nd0.2Ni and Mg1.7Nd0.3Ni alloys respectively. The lattice constants of Mg2Ni in those ternary alloys were calculated. The decomposition of Mg2Ni occurs in the milling process of Mg2Ni and Mg1.95RE0.05Ni alloys respectively. For the latter, another earlier reaction occurs in milling process, which means that atoms of RE are separated from crystal structure of Mg2Ni and form relevant oxides by combination with oxygen existed in argon atmosphere.
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| 关 键 词： | 三元合金 镁合金 稀土 结构 性能 |
Preparation and Structure of Mg_(2-x)RE_xNi (RE=La, Ce, Pr, Nd, Y) Ternary Alloys |
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| Wang Zhongmin ,Zhou Huaiying ,Gu Zhenfei ,Cheng Gang ,Yu Aibing.Preparation and Structure of Mg_(2-x)RE_xNi (RE=La, Ce, Pr, Nd, Y) Ternary Alloys[J].Journal of Rare Earths,2004,22(2):263-267. |
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| Authors: | Wang Zhongmin Zhou Huaiying Gu Zhenfei Cheng Gang Yu Aibing |
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| Affiliation: | Wang Zhongmin 1*,Zhou Huaiying 1,Gu Zhenfei 1,Cheng Gang 1,Yu Aibing 2 |
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| Abstract: | A series of Mg_(2-x)Nd_xNi (x=0.05, 0.1, 0.2, 0.3) alloys and Mg_(1.95)RE_(0.05)Ni (RE= La, Ce, Pr, Nd, Y) ternary alloys were prepared by ball milling of mixted powder of Mg,Ni,RE and sintering under the protection of argon. XRD analysis shows that Mg_(2-x)Nd_xNi (x=0.05, 0.1) and Mg_(1.95)RE_(0.05)Ni consist of single phase with the same crystal structure as Mg_2Ni. While three-phase alloys including Mg_2Ni, NdNi and NdMgNi_4 were formed in Mg_(1.8)Nd_(0.2)Ni and Mg_(1.7)Nd_(0.3)Ni alloys respectively. The lattice constants of Mg_2Ni in those ternary alloys were calculated. The decomposition of Mg_2Ni occurs in the milling process of Mg_2Ni and Mg_(1.95)RE_(0.05) Ni alloys respectively. For the latter, another earlier reaction occurs in milling process, which means that atoms of RE are separated from crystal structure of Mg_2Ni and form relevant oxides by combination with oxygen existed in argon atmosphere. |
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| Keywords: | metal materials Mg_2Ni Mg_(2-x)RE_xNi ball milling crystal structure rare earths |
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