4.1 Article

Cu2S-EuS phase diagram

Journal

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
Volume 57, Issue 11, Pages 1502-1507

Publisher

MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0036023612110034

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Funding

  1. Federal Target Program Research and Research Training Resources of Innovative Russia [6K/143-09 (P 646)]
  2. R D job [3.3763.2011 (7-12)]

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In the Cu2S-EuS system, a eutectic is formed between Cu2S- 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 % Cu2S. A beta-Cu2S-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. alpha-Cu2S at 379 K dissolves 6.5 mol % EuS; gamma-Cu2S at (1186 +/- 3) K dissolves 3.5 mol % EuS.

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