Phases, lattice parameters and thermal expansion of HoNi5-xAlx, 4 [greater-than or equal to] x [greater-than or equal to] 0 (CROSBI ID 80414)
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Podaci o odgovornosti
Gržeta, Biserka ; Šorgić, Božica ; Blažina, Želimir
engleski
Phases, lattice parameters and thermal expansion of HoNi5-xAlx, 4 [greater-than or equal to] x [greater-than or equal to] 0
The phases, lattice parameters and linear coefficient of thermal expansion were determined by x-ray powder diffraction between room temperature and 873 K for the system HoNi5-xAlx (3 greater-than-or-equal-to x greater-than-or-equal- to 0). Alloys were hexagonal, in the space group P6/mmm ; for 2 greater-than-or-equal-to x greater- than-or-equal-to 0 they were isostructural with CaCu5, and for 3 grater-than-or-equal-to x greater-than 2 they were isostructural with YCo3Ga2. In both cases, the unit cell parameters increased as the Al content increased. The linear thermal expansion coefficient was composition dependent. Each of the investigated alloys exhibited an anisotropy in thermal expansion, the linear expansion coefficient along the a-axis being larger than along the c-axis.
lattice parameters ; thermal expansion ; intermetallic compounds
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Podaci o izdanju
30
1997.
1156-1158
objavljeno
0021-8898
1600-5767
10.1107/S0021889897002392