Dai Yangkun, Liu Yibo, Mihalkovic Marek, Wen Bin, Zhang Lifeng, Fan Changzeng
State Key Laboratory of Metastable Materials Science and Technology Yanshan University,Qinhuangdao 066004 People's Republic of China.
Institute of Physics, Slovak Academy of Sciences, 84511 Bratislava, Slovakia.
IUCrdata. 2025 Apr 17;10(Pt 4):x250325. doi: 10.1107/S2414314625003256. eCollection 2025 Apr.
A CaCuFeSi phase was obtained during high-pressure sinter-ing of an Si-rich quasicrystal composition prealloy with the nominal chemical com-position SiCuCaFe. The obtained phase crystallizes in the space group 4/ (No. 139), with = = 4.041 Å and = 10.010 Å. It is isotypic with CaCuSi ( = = 4.06 Å and = 9.91 Å) [Palenzona (1986 ▸). , 199-209] and CaFeSi ( = = 3.94 Å and = 10.19 Å) [Hlukhyy (2012 ▸). , 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).
在对名义化学成分为SiCuCaFe的富硅准晶成分预合金进行高压烧结过程中获得了一种CaCuFeSi相。所获得的相在空间群4/（编号139）中结晶，a = b = 4.041 Å，c = 10.010 Å。它与CaCuSi（a = b = 4.06 Å，c = 9.91 Å）[帕伦佐纳（1986 ▸）。 ，199 - 209]和CaFeSi（a = b = 3.94 Å，c = 10.19 Å）[赫卢基（2012 ▸）。 ，1619 - 1619]同型。它的特征是Cu和Fe原子共占据，细化的位点占有率因子之比为0.71 (15):0.29 (15)。
