Cu2S-EuS phase diagram

In the Cu 2 S-EuS system, a eutectic is formed between Cu 2 S- and EuS-based solid solutions (ss) at (1069 ± 2) K, 24.5 mol % EuS. EuS dissolves 7.0 (at 1770 K), 5.0 (1170 K), and 3.0 (770 K) mol % Cu 2 S. A β-Cu 2 S-based ss is of the open type, has an extent (mol %) of 15.5 (at 1069 K), 7.5 (970 K...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry 2012-11, Vol.57 (11), p.1502-1507
Main Authors: Andreev, O. V., Ruseikina, A. V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Physicochemical Analysis of Inorganic Systems
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Summary:In the Cu 2 S-EuS system, a eutectic is formed between Cu 2 S- and EuS-based solid solutions (ss) at (1069 ± 2) K, 24.5 mol % EuS. EuS dissolves 7.0 (at 1770 K), 5.0 (1170 K), and 3.0 (770 K) mol % Cu 2 S. A β-Cu 2 S-based ss is of the open type, has an extent (mol %) of 15.5 (at 1069 K), 7.5 (970 K), 4.5 (770 K), 2.5 (520 K), and 1.5 (379 K) EuS, and melts incongruently at 1186 K, 7.0 mol % EuS. α-Cu 2 S at 379 K dissolves 6.5 mol % EuS; γ-Cu 2 S at (1186 ± 3) K dissolves 3.5 mol % EuS.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023612110034