Al48.18Cr22.78Fe4.04Si3 这是一个很大的问题
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.
IUCrData
|January 19, 2026
概括
高压烧结意外合成了一种新的金属间化合物,Al48.18Cr22.78Fe4.04Si3. 这种新材料采用了特定的晶体结构,揭示了独特的原子排列.
科学领域:
- 材料科学 材料科学 材料科学
- 晶体学 晶体学是指结晶学.
- 固态化学 固态化学
背景情况:
- 金属间化合物在先进的材料应用中至关重要.
- 了解合成路径和晶体结构是材料设计的关键.
研究的目的:
- 在高压烧结下研究金属间化合物的合成.
- 描述合成化合物的晶体结构和原子排列.
主要方法:
- 一种Al-Cr-Fe-Si混合物的高压烧结.
- 用X射线衍射和晶体分析来确定结构.
主要成果:
- 意想不到的Al48.18Cr22.78Fe4.04Si3的合成,与最初的组成不同.
- 该化合物采用空间组R3m中的Cr0.88Fe0.12Ga结构类型.
- 对Al,Cr和Fe的原子位点占用因子进行了详细的细化.
结论:
- 高压烧结是合成新型金属间相的可行途径.
- 确定的晶体结构为Al-Cr-Fe-Si系统中的原子结合和相互作用提供了洞察力.
- 这一发现扩大了复杂的金属间化合物的已知相空间.
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