Interaction of the components in the V–{Fe,Ni}–Sn ternary
systems
Chem.
Met. Alloys 8 (2015) 75-82
https://doi.org/10.30970/cma8.0308
L. ROMAKA, M. KONYK,
Yu. STADNYK, A. HORYN, V.V.
ROMAKA, R. SERKIZ, V. KRAYOVSKYY
The phase equilibria
of the V–Fe–Sn and V–Ni–Sn
ternary systems at 873 K and 773 K, respectively, were studied in the whole
concentration range, using X-ray diffraction and metallographic analysis. The
V–Fe–Sn ternary system at 873 K is characterized by
the formation of two ternary intermetallic compounds,
VFe2Sn (MnCu2Al-type, space group Fm-3m, a = 0.59641(3) nm) and (V,Fe)Sn2 (Mg2Ni-type,
space group P6222, a = 0.5441(1)-0.5437(1), c = 1.3852(2)-1.3769(5) nm). In the
V–Ni–Sn system at 773 K only one ternary compound,
VNi2Sn (MnCu2Al-type, a
= 0.6031(1) nm), was observed. Electrical resistivity
and thermopower were measured for the (V,Fe)Sn2 compound in
the temperature range 80-380 K. The compound shows metallic type of
conductivity in the investigated temperature range.
Isothermal section of the phase diagram of the
V–Fe–Sn system at 873 K
Keywords
Stannides / Phase diagram / EPMA / Electrical properties / X-ray powder diffraction