在--系统中的五种化合物的晶体结构
Koichi Kitahara1,2, Hiroyuki Takakura3, Yutaka Iwasaki4,2
1Department of Materials Science and Engineering, School of Electrical and Computer Engineering, National Defense Academy, Yokosuka 239-8686, Japan.
Acta crystallographica. Section E, Crystallographic communications
|October 11, 2023
概括
这项研究详细介绍了五种新型--化合物的晶体结构. 研究人员使用单晶X射线衍射确定了这些结构,揭示了复杂的安排和已知的晶体相之间的关系.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 晶体学 晶体学是指结晶学.
背景情况:
- -- (Ru-Al-Si) 系统由于其潜在的复杂结构而引起人们的兴趣.
- 了解这些金属间化合物的结晶学对于材料开发至关重要.
研究的目的:
- 为了确定五种新的Ru-Al-Si化合物的晶体结构.
- 分析这些新型相与已知的晶体结构之间的结晶学关系.
主要方法:
- 从多晶体Ru-Al-Si块中合成单晶体.
- 单晶X射线衍射分析用于精确的结构确定.
主要成果:
- 在结构上描述了五种化合物,其大致组成是: ∼Ru16(Al0.78Si0.22) 47 , ∼Ru9(Al0.70Si0.30) 32 , ∼Ru10(Al0.67Si0.33) 41 , ∼Ru(Al0.57Si0.43) 5 , 和 ∼Ru2(Al0.46Si0.54) 9 .
- 化合物 (I) 显示了通过晶体切割和单元细胞生与立方理性晶体近似的关系.
- 化合物 (II), (III), (IV) 和 (V) 呈现独特的结构,包括与Fe9(Al,Si) 32的同型,带有无序链的边缘共享多面体,LiIrSn4类型,以及分别来自 (IV) 的晶体剪切结构.
结论:
- 该研究成功阐明了五种新的Ru-Al-Si化合物的复杂晶体结构.
- 这些发现为了解Ru-Al-Si间金属中的结构多样性和形成原理提供了基础.
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