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1 Prace Naukowe. Chemia / Wyższa Szkoła Pedagogiczna w Częstochowie

1 2003

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Solid solutions based on the M5X3 binary compounds in the M-{Si, Ge}-Sb ternary systems (M - Ti, Zr, Y; X - Si, Ge, Sb)

Kozlov A. Yu., Pavlyuk V. V.

Prace Naukowe. Chemia / Wyższa Szkoła Pedagogiczna w Częstochowie

2003

Vol. 8

23--28

The solid solutions based on M5X3 binary compounds in Ti-{Si, Ge}-Sb, Zr-Si-Sb and Y-{Si, Ge}-Sb ternary systems at 400°C were found (str. Type Mn5Si3, space group P63/mcm). The crystal structure of Ti5Si2.76Sb0.24 (a=0.7500 nm, c=0.5182 nm) and Ti5Ge2.26Sb0.74(a=0.7604(5) nm, c=0.5260(3) nm) was investigated by single-crystal X-ray analysis. Continuous solid solutions between Y5Si3-Y5Sb3 and Y5Ge3-Y5Sb3 compounds were investigated by powder X-ray analysis. The solid solution Zr5SixSb3+y (x=0-1, y=0-1) is formed by interstitial of atoms of Si in triqonal antiprisms which are formed by Zr atoms in 6g sites in Zr5Sb3 (str. type Mn5Si3, space group P63/mcm) binary compound or substitution of atoms of Sb in 2b sites by Si atoms in Zr5Sb4 (str. type Ti5Ga4, space group P63/mcm) binary compound.