Peculiarity of component interaction in Er–Fe–Sn ternary system at 670 K and 770 K

• Published in: Journal of alloys and compounds 2010-09, Vol.507 (1), p.67-71
• Main Authors: Romaka, L., Romaka, V.V., Demchenko, P., Serkiz, R.
• Format: Article
• Language: English
• Subjects: Alloys; Construction; Cross-disciplinary physics: materials science; rheology; Crystal structure; Exact sciences and technology; Intermetallics; Interstitials; Materials science; Phase diagrams; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations; Phase diagrams of metals and alloys; Physics; Solid solutions; Stannides; Ternary systems; Tin; X-ray diffraction; X-rays
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2010.07.137

▶ The interstitial solid solution ErFe x Sn 2 was observed in Er–Fe–Sn system at 670 K and 770 K. ▶ The Er–Fe–Sn system at 670 K is characterized by formation of ErFe 6Sn 6 and Er 5Fe 6Sn 18 stannides. ▶ Ternary compounds are characterized by the vacancies in crystal structure. The isothermal sections of the phase diagram of Er–Fe–Sn ternary system were constructed at 770 and 670 K in the whole concentration range using X-ray and metallographic analyses. Component interaction in the Er–Fe–Sn system at 670 K results the existence of two ternary compounds, ErFe 6Sn 6 (YCo 6Ge 6-type) and Er 5Fe 6Sn 18 (Tb 5Rh 6Sn 18-type), while at 770 K only one intermediate ErFe 6Sn 6 phase was observed. The existence of the interstitial solid solution ErFe x Sn 2 (up to 5 at.% Sn) was found at both temperatures.