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

Autor: Liang, Liuqing, Li, Weijun, Lu, Meiwen, Li, Sheng, Li, Degui, Gu, Bin
Předmět:
Zdroj: Powder Diffraction; Sep2023, Vol. 38 Issue 3, p215-219, 5p
Abstrakt: 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 cP 52). The lattice parameter a = 8.7132(3) Å, unit-cell volume V = 661.52 Å3, calculated density D calc = 7.26 g/cm3, and Z = 4. The residual factors converge to R p = 2.96%, R wp = 4.06%, and R exp = 2.57%. The experimentally obtained reference intensity ratio value is 7.04. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index