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Specific heats of FCC solid solutions of the Bi 2 O 3 –Er 2 O 3 system
Author(s) -
Berezovskaya Yu.,
Budurov S.,
Spasov T.
Publication year - 1987
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170221113
Subject(s) - solid solution , tetragonal crystal system , calorimetry , atmospheric temperature range , thermodynamics , materials science , phase (matter) , ideal (ethics) , crystallography , analytical chemistry (journal) , chemistry , crystal structure , physics , metallurgy , philosophy , organic chemistry , epistemology , chromatography
For the first time specific heats of the fcc solid solutions (Bi 2 O 3 ) 1− x (Er 2 O 3 ) x in the temperature range 350–1000 K were measured by means of Differental Scanning Calorimetry. Samples were also investigated with thermal expansion. A possibility of tetragonal distortion with subsequent transformation in δ* phase is supposed for (Bi 2 O 3 ) 0.80 (Er 2 O 3 ) 0.20 . Thermodynamic data on (Bi 2 O 3 ) 1− x (Er 2 O 3 ) x compared with ideal solutions are discussed.