Open AccessPHASE DIAGRAM OF THE Dy-Sn BINARY SYSTEM
Author(s) -
Rongzhen Chen,
Zheng Jian-Xuan
Publication year - 1983
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.32.933
Subject(s) - intermetallic , eutectic system , phase diagram , solid solubility , materials science , solubility , differential thermal analysis , congruent melting , binary system , solid solution , thermodynamics , phase (matter) , diffraction , crystallography , binary number , metallurgy , chemistry , microstructure , alloy , physics , arithmetic , mathematics , organic chemistry , optics
A phase diagram of the alloys of the Dy-Sn binary system has been investigated by means of X-ray diffraction method and differential thermal analysis. The intermetallic com- pounds DySn2,Dy5Sn3,Dy5Sn4 and Dy11Sn10 were detected, and the new intermetallic Compounds Dy2Sn,DySn,Dy8Sn9,Dy4Sn7 and DySn4 were observed.There are four eutectic reactions and six peritectic reactions in Dy-Sn system. Dy2Sn,DySn,Dy4Sn7 melt congruently at 1237℃, 1222℃ and 1154℃ respectively, and Dy5Sn3,Dy5Sn4,Dy11Sn10,Dy8Sn9,DySn2 and DySn4 decompose at peritectic reaction temperatures 1140℃, 1160℃, 1175℃, 1134℃, 738℃ and 442℃ respectively. There exists a Crystal melting transformation at 1182℃ in Dy-rich region.DySn4 does not show any detectable Solid solubility in Sn and Sn shows solid solubility up 5 wt% to in α-Dy and 7 wt% in β-Dy.