The structure of the aluminium-abundant γ-brass-type AlMn.

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State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People's Republic of China.

Published: September 2021

An aluminium-abundant AlMn/γ-brass-type inter-metallic with formula AlMn, which is isotypic with γ-AlCr and γ-AlV, was discovered by high-temperature sinter-ing of an Al/Mn mixture with initial composition AlMn. Structure analysis revealed that one special position (Wyckoff site 18 in space group ) is shared by Al and Mn, with refined site occupancy factors of 0.7 and 0.3, respectively. The present low-temperature AlMn-type phase crystallizes in the centrosymmetric space group (No. 166), rather than 3 (No. 160) as previously reported for the same inter-metallic characterized by TEM measurements [Zeng (2018 ▸). , 364-376].

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9462374PMC
http://dx.doi.org/10.1107/S2414314621009883DOI Listing

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