Author/Authors :
Du، نويسنده , , Honglin and Zhang، نويسنده , , Wenyong and Wang، نويسنده , , Changsheng and Han، نويسنده , , Jingzhi and Yang، نويسنده , , Yingchang and Chen، نويسنده , , Bo and Xie، نويسنده , , Chaomei and Sun، نويسنده , , Kai and Zhang، نويسنده , , Baisheng، نويسنده ,
Abstract :
The structures of LaNi5−xAlxDy (x=0.75, 0.25, y=1.01, 1.10, 1.91 and 3.1) were systematically investigated by neutron and X-ray diffraction. D atoms are found to enter the 6m site of the α-phase but not the reported 12n site, while the 6m and 12n sites of the β-phase. In the case of LaNi4.75Al0.25Dy with lower Al content and symmetry, D atoms do not enter the α-phase but occupy the 4h site besides the 6m and 12n sites of the β-phase. The relationship between structures and properties is also discussed.
