Al48.18Cr22.78Fe4.04Si3

Xinyu Liang; Changzeng Fan; Bin Wen; Lifeng Zhang

doi:10.1107/S2414314625010399

Al_48.18Cr_22.78Fe_4.04Si₃

IUCrdata. 2025 Nov 21;10(Pt 11):x251039. doi: 10.1107/S2414314625010399. eCollection 2025 Nov.

Authors

Xinyu Liang¹, Changzeng Fan^{1

2}, Bin Wen¹, Lifeng Zhang^{1

3}

Affiliations

¹ State Key Laboratory of Metastable Materials Science and Technology Yanshan University,Qinhuangdao 066004 People's Republic of China.
² Hebei Key Lab for Optimizing Metal Product Technology and Performance Yanshan University,Qinhuangdao 066004 People's Republic of China.
³ School of Mechanical and Materials Engineering North China University of Technology,Beijing 100144 People's Republic of China.

Abstract

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 Al_48.18Cr_22.78Fe_4.04Si₃, which adopts the Cr_0.88Fe_0.12Ga 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.

Keywords: crystal structure; decagonal quasicrystal; high-pressure sintering; intermetallic.