Details

Autor(en) / Beteiligte

• Romaka, V.V.
• Konyk, M.
• Romaka, L.
• Pavlyuk, V.
• Ehrenberg, H.
• Tkachuk, A.

Titel

Peculiarity of component interaction in {Y, Dy}–Mn–Sn ternary systems

Ist Teil von

• Journal of alloys and compounds, 2011-07, Vol.509 (28), p.7559-7564

Ort / Verlag

Kidlington: Elsevier B.V

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• ► {Y, Dy}–Mn–Sn ternary systems at 770 K are characterized by formation of stannides with general compositions RMn 6Sn 6 and R 4Mn 4Sn 7. ► The crystal structure of YMn 6Sn 6 was determined by single crystal and powder diffraction methods. ► Structural analysis showed that Dy 4Mn 4Sn 7 compound is disordered. ► Isostructural R 4Mn 4Sn 7 compounds were also found with Gd, Tb, Ho, Er, Tm(confirmed), Yb, and Lu. The phase equilibria in the Y–Mn–Sn and Dy–Mn–Sn ternary systems were studied at 770 K by means of X-ray and metallographic analyses in the whole concentration range. Both Y–Mn–Sn and Dy–Mn–Sn systems are characterized by formation of two ternary compounds RMn 6Sn 6 (MgFe 6Ge 6-type, space group P6/ mmm) and R 4Mn 4Sn 7 (Zr 4Co 4Ge 7-type, space group I4/ mmm). The disorder in Dy 4Mn 4Sn 7 compound was found by single crystal method. Compounds with the same type of structure were also found with Gd, Tb, Ho, Er, Tm (confirmed), Yb, and Lu and their lattice parameters were determined.