Experimental synthesis and crystal structure refinement of a new ternary intermetallic compound Al3GaCu9

IF 0.3 4区材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Powder Diffraction Pub Date : 2023-05-16 DOI:10.1017/s0885715623000155

L. Liang, Weijun Li, Meiwen Lu, Sheng-Kun Li, Degui Li, Bin Gu

引用次数: 0

Abstract

A new ternary intermetallic compound Al3GaCu9 was synthesized experimentally. A high-quality powder diffraction pattern of the compound was collected by an X-ray diffractometer, and its crystal structure was determined using the Rietveld refinement method. Results show that the compound has a cubic cell with the Al4Cu9 structure type (space group $P\bar{4}3m$ and Pearson symbol cP52). The lattice parameter a = 8.7132(3) Å, unit-cell volume V = 661.52 Å3, calculated density Dcalc = 7.26 g/cm3, and Z = 4. The residual factors converge to Rp = 2.96%, Rwp = 4.06%, and Rexp = 2.57%. The experimentally obtained reference intensity ratio value is 7.04.

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新型三元金属间化合物Al3GaCu9的实验合成及晶体结构细化

实验合成了一种新的三元金属间化合物Al3GaCu9。通过X射线衍射仪收集该化合物的高质量粉末衍射图，并使用Rietveld精细化方法测定其晶体结构。结果表明，该化合物具有Al4Cu9结构型的立方晶胞（空间群$P\bar{4}3m$和Pearson符号cP52）。晶格参数a=8.7132（3）Å，晶胞体积V=661.52Å3，计算密度Dcalc=7.26 g/cm3，Z=4。残差因子收敛到Rp=2.96%，Rwp=4.06%，Rexp=2.57%。实验获得的参考强度比值为7.04。

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来源期刊

$Powder Diffraction$

Powder Diffraction 工程技术-材料科学：表征与测试

CiteScore

0.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Powder Diffraction is a quarterly journal publishing articles, both experimental and theoretical, on the use of powder diffraction and related techniques for the characterization of crystalline materials. It is published by Cambridge University Press (CUP) for the International Centre for Diffraction Data (ICDD).