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

作者：Liang, Liuqing; Li, Weijun; Lu, Meiwen^*; Li, Sheng; Li, Degui; Gu, Bin

来源：POWDER DIFFRACTION, 2023, 38(3): 215-219.

DOI：10.1017/S0885715623000155

• Al3GaCu9
• intermetallic compound
• powder X-ray diffraction
• Rietveld refinement

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 P43m and Pearson symbol cP52). The lattice parameter a = 8.7132(3) A, unit-cell volume V = 661.52 A(3), calculated density Dcalc = 7.26 g/cm(3), and Z = 4. The residual factors converge to R-p = 2.96%, Rwp = 4.06%, and R-exp = 2.57%. The experimentally obtained reference intensity ratio value is 7.04.

• 单位
  桂林理工大学