Ti4Ni2C 的晶体结构

IUCrData Pub Date : 2024-01-01 DOI:10.1107/S2414314624000439

Huizi Liu , Xinyu Liang , Yibo Liu , Changzeng Fan , Bin Wen , Lifeng Zhang , M. Weil (Editor)

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引用次数: 0

摘要

通过对初始化学成分为 Ti2Ni 的混合物进行高压烧结，偶然获得了成分为 Ti4Ni2C 的金属间相单晶。Ti4Ni2C 相在 Fd\overline{3}m 空间群中结晶，可视为部分填充的 Ti2Ni 结构，其中 C 原子占据一个八面体空隙。Ti4Ni2C 与 Ti4Ni2O、Nb4Ni2C 和 Ta4Ni2C 同型，所有这些物质以前都通过粉末衍射法进行过研究。

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Crystal structure of Ti4Ni2C

Ti₄Ni₂C crystallizes isotypically with Ti₄Ni₂O, Nb₄Ni₂C and Ta₄Ni₂C and can be considered as a partially filled Ti₂Ni structure with the C atom occupying an octahedral void.

Single crystals of the intermetallic phase with composition Ti₄Ni₂C were serendipitously obtained by high-pressure sintering of a mixture with initial chemical composition Ti₂Ni. The Ti₄Ni₂C phase crystallizes in the Fd

m space group and can be considered as a partially filled Ti₂Ni structure with the C atom occupying an octahedral void. Ti₄Ni₂C is isotypic with Ti₄Ni₂O, Nb₄Ni₂C and Ta₄Ni₂C, all of which were studied previously by means of powder diffraction.

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