Phase equilibria in Ho-Fe-Sn ternary system at 670 K

Authors

  • L. Romaka Ivan Franko L’viv National University
  • Yu. Stadnyk Ivan Franko L’viv National University
  • V. V. Romaka Lviv Polytechnic National University; Institute for Solid State Research
  • A. Horpenyuk Lviv Polytechnic National University

DOI:

https://doi.org/10.15330/pcss.21.2.272-278

Keywords:

Intermetallics, Stannides, Phase diagrams, Crystal structure, X-ray diffraction

Abstract

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. %.

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Published

2020-06-15

How to Cite

Romaka, L., Stadnyk, Y., Romaka, V. V., & Horpenyuk, A. (2020). Phase equilibria in Ho-Fe-Sn ternary system at 670 K. Physics and Chemistry of Solid State, 21(2), 272–278. https://doi.org/10.15330/pcss.21.2.272-278

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Section

Scientific articles