CaCu<sub>1.424</sub>Fe<sub>0.576</sub>Si<sub>2</sub>
A CaCu<sub>1.424</sub>Fe<sub>0.576</sub>Si<sub>2</sub> phase was obtained during high-pressure sinter-ing of an Si-rich quasicrystal composition prealloy with the nominal chemical com-position Si<sub>61</sub>Cu<sub>30</sub>Ca<sub>7</sub>Fe<sub>2</sub>. The obtained phase crystallizes in the space group <i>I</i>4/<i>mmm</i> (No. 139), with <i>a</i> = <i>b</i> = 4.041 Å and <i>c</i> = 10.010 Å. It is isotypic with CaCu<sub>2</sub>Si<sub>2</sub> (<i>a</i> = <i>b</i> = 4.06 Å and <i>c</i> = 9.91 Å) [Palenzona <i>et al.</i> (1986 ▸). <i>J. Less-Common Met.</i> <b>119</b>, 199-209] and CaFe<sub>2</sub>Si<sub>2</sub> (<i>a</i> = <i>b</i> = 3.94 Å and <i>c</i> = 10.19 Å) [Hlukhyy <i>et al.</i> (2012 ▸). <i>Z. Anorg. Allg. Chem.</i> <b>638</b>, 1619-1619]. It features a co-occupancy of Cu and Fe atoms with a ratio of the refined site-occupancy factors of 0.71 (15):0.29 (15).
Authors
- Yaomin Dai (ORCID: https://orcid.org/0000-0002-2464-3161)
- Changzeng Fan (ORCID: https://orcid.org/0000-0001-6727-5912)
- Bin Wen (ORCID: https://orcid.org/0000-0001-9846-5452)
- M. Mihalkovič (ORCID: https://orcid.org/0000-0003-3671-0509)
- Lifeng Zhang (ORCID: https://orcid.org/0000-0001-7394-5433)
- Yibo Liu (ORCID: https://orcid.org/0000-0002-9176-3200)
Institutions
- North China University of Technology (CN)
- Slovak Academy of Sciences (SK)
- Yanshan University (CN)
- Institute of Physics of the Slovak Academy of Sciences (SK)
Publication Details
- Journal
- IUCrData
- Published
- 2025-04-17
- DOI
- https://doi.org/10.1107/s2414314625003256
- Primary Topic
- Crystal Structures and Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Hebei Province
- Agentúra na Podporu Výskumu a Vývoja
- Vedecká Grantová Agentúra MŠVVaŠ SR a SAV