MnAl6およびMnAl4相の結晶構造
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Crystal structures of intermetallic MnAl6 and MnAl4 phases, were determined by the powder X-ray diffraction method on the specimens extracted electrolytically from the binary alloy. The transformation reaction from MnAl4 to MnAl6 was also discussed. Results obtained were as follows.(1) The MnAl6 phase is a C-face centered orthorhombic structure, lattice parameters were measured as a = 7.564Å, b = 6.500Å, c = 8.883Å, the space group is D172h-Cmcm, and the density is 3.25g/cm3. The crystal composition is MnAl6 and a unit cell contained 4 formula units.(2) The MnAl4 phase is a simple orthorhombic structure, lattice parameters are a = 6.795Å, b = 9.343Å, c = 13.897Å, the space group is D22h-Pnnn, and the density is 3.65g/cm3. The crystal composition is MnAl4 and a unit cell contained 12 formula units.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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