The Ti-Fe-P system: phase equilibria and crystal structure of phases

Phase equilibria was investigated in the Ti-Fe-P system at T = 1070 K in the region 0–67 at.% of P, employing X-ray powder diffraction. The two ternary compounds, namely Ti 0.5–0.8 Fe 1.5−1.2 P (Co 2 Si-type; space group Pnma ; a = 0.5964(2)–0.6011(3), b = 0.3575(3)–0.3600(1), c = 0.6828(2)–0.6882(2...

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Bibliographic Details
Published in:Central European journal of chemistry 2013-09, Vol.11 (9), p.1518-1526
Main Authors: Toma, Oksana, Dzevenko, Mariya, Oliynyk, Anton, Lomnytska, Yaroslava F.
Format: Article
Language:English
Subjects:
Biochemistry
Biological and Medical Physics
Biophysics
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Crystal structure
Diffraction
Geochemistry
Intermetallic compound
Iron
Isothermal section
Phase equilibria
Phosphorus
Research Article
Single crystals
Titanium
X-rays
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Summary:Phase equilibria was investigated in the Ti-Fe-P system at T = 1070 K in the region 0–67 at.% of P, employing X-ray powder diffraction. The two ternary compounds, namely Ti 0.5–0.8 Fe 1.5−1.2 P (Co 2 Si-type; space group Pnma ; a = 0.5964(2)–0.6011(3), b = 0.3575(3)–0.3600(1), c = 0.6828(2)–0.6882(2) nm) and Ti 0.85−1.25 Fe 1.15−0.75 P (ZrNiAl-type; space group P -62 m ; a = 0.6071(4)–0.6117(1), c = 0.3510(9)–0.3506(1) nm) exist in the Ti-Fe-P system at this temperature. The crystal structure of the Ti 0.85–1.25 Fe 1.15−0.75 P compound was additionally determined by X-ray single crystal diffraction on the phase with stoichiometric composition. The substitutions of Ti by Fe were observed for Ti 5 P 3.16 , Ti 3 P and TiP phases, and Fe for Ti in the case of Fe 3 P, Fe 2 P binary compounds. Graphical abstract
ISSN:1895-1066
2391-5420
1644-3624
2391-5420
DOI:10.2478/s11532-013-0282-8