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Published on: October 16, 2017
Al48.18Cr22.78Fe4.04Si3
Xinyu Liang1, Changzeng Fan1,2, Bin Wen1
1State Key Laboratory of Metastable Materials Science and Technology Yanshan University,Qinhuangdao 066004 People's Republic of China.
None:
A mixture with the initial chemical composition Al59Cr21Fe10Si10 was subjected to high-pressure sinter-ing, resulting in the unexpected synthesis of an inter-metallic compound with the composition Al48.18Cr22.78Fe4.04Si3, which adopts the Cr0.88Fe0.12Ga structure type in the space group R3m. Structural analysis indicates that Al, Cr and Fe jointly occupy a special position (Wyckoff site 18h), with refined site occupancy factors of 0.676 (6), 0.17 (2) and 0.16 (2), respectively. Cr and Fe share another special position (Wyckoff site 3b), with refined site occupancy factors of 0.60 (6) and 0.40 (6), respectively. Other atoms in the crystal (Al and Si) fully occupy their sites.
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