Study on the compounds of Mg12La and (Mg,Zn)11.5La

1st International Conference on New Material and Chemical Industry

材料科学;化学工业

Huang, M.L.^1 ; Si, Z.Y.^1 ; Li, H.X.^1

School of Materials Science and Engineering, Northeastern University, Shenyang

110819, China^1

关键词: Binary solid solutions;    Orthorhombic lattices;    Phase relationships;    Ternary compounds;    Tetragonal lattices;    Zn content;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/167/1/012043/pdf
DOI  :  10.1088/1757-899X/167/1/012043

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The composition, crystal structure and phase relationship of the main intermetallics of the Mg-Zn-La system on the low La side have been studied. The results show that there exists a binary solid solutions of Mg12La as (Mg,Zn)La12and a linear ternary compound (Mg,Zn)11.5La. Though the composition formula of the two phases are similar, but the composition of Zn in them are different. The maximum Zn content of (Mg,Zn)12La is 7.2at% and the minimum Zn content of (Mg,Zn)11.5La is 8.5at%. What's more, the crystal structures of (Mg,Zn)12La and (Mg,Zn)11.5La phase are also totally different. (Mg,Zn)La12have the body centered tetragonal lattice structure, but the crystal structure of (Mg,Zn)11.5La is C-centered orthorhombic lattice structure.