Open AccessPhase equilibria in Ho-Fe-Sn ternary system at 670 K
Author(s) -
L. Romaka,
Yu. Stadnyk,
V.V. Romaka,
Andriy Horpenyuk
Publication year - 2020
Publication title -
fìzika ì hìmìâ tverdogo tìla
Language(s) - English
Resource type - Journals
eISSN - 2309-8589
pISSN - 1729-4428
DOI - 10.15330/pcss.21.2.272-278
Subject(s) - electron microprobe , metallography , isothermal process , phase diagram , ternary numeral system , ternary operation , phase (matter) , ternary compound , analytical chemistry (journal) , crystallography , materials science , solid solution , solubility , chemistry , inorganic chemistry , metallurgy , thermodynamics , microstructure , physics , organic chemistry , chromatography , computer science , programming language
Interaction between the components in the Ho-Fe-Sn ternary system was studied using X-ray diffractometry, metallography and electron microprobe analysis. Isothermal section of the phase diagram was constructed at 670 K over the whole concentration range. Component interaction in the Ho-Fe-Sn system at 670 K results in the existence of one ternary compound HoFe6Sn6 which crystallizes in the YCo6Ge6 structure type (space group P6/mmm, a=0.53797(2), c= 0.44446(2) nm). The interstitial-type solid solution HoFexSn2 (up to 8 at.% Fe) based on the HoSn2 (ZrSi2-type structure) binary compound was found. Solubility of Sn in the HoFe2 binary (MgCu2 structure type) extends up to 5 at. %.