Liu Yibo, Liu Huizi, Fan Changzeng, Bin Wen, Zhang Lifeng
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, People's Republic of China.
Hebei Key Lab for Optimizing Metal Product Technology and Performance, Yanshan University, Qinhuangdao 066004, People's Republic of China.
IUCrdata. 2023 Dec 14;8(Pt 12):x231065. doi: 10.1107/S2414314623010659. eCollection 2023 Dec.
Three B2-type inter-metallic AlFe phases (0.18 < δ < 0.05) in the Al-Fe binary system were synthesized by smelting and high temperature sinter-ing methods. The exact crystal structure for δ = 0.05 was refined by single-crystal X-ray diffraction. The amount of vacancy defects at the Fe atom sites was obtained by refining the corresponding site occupancy factor, converging to the chemical formula AlFe, with a structure identical to that of ideal AlFe models inferred from powder X-ray or neutron diffraction patterns.
通过熔炼和高温烧结法合成了Al-Fe二元系中的三种B2型金属间化合物AlFe相（0.18 < δ < 0.05）。通过单晶X射线衍射确定了δ = 0.05时的确切晶体结构。通过细化相应的位置占有率得到了Fe原子位置处的空位缺陷数量，收敛到化学式AlFe，其结构与从粉末X射线或中子衍射图推断的理想AlFe模型相同。
