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The phase equilibria on AgGaS2/AgInS2/-HgS section in the quasi-ternary Ag2S-HgS-Ga2S3/In2S3/ systems

Olekseyuk I., Galka V., Parasyuk O.

Polish Journal of Chemistry

1999

vol. 73 nr 2

255-261

The phase diagrams of AgGaS2/AgInS2/-HgS sections in the quasi-ternary Ag2S-HgS-Ga2S3/In2S3/ systems have been constructed using differential thermal, X-ray phase and microstructural analyses. AgGaS2-HgS section is quasi-binary and belongs to the eutectic type. The coordinates of the eutectic point are 76 mol% HgS and 1018 K. AgInS2-HgS is not quasi-binary above the solidus. In the AgInS2-HgS system the limited solid solutions within the composition range 0-2 mol% HgS and 82-98 mol% HgS at 670 K were discovered. The compounds AgInS2 and HgS form limited solid solutions within the composition range 0-2 mol% HgS and 71-95 mol% HgS at 670 K. The solid solutions, in the part HgS-rich, are created on the basis of the low temperature cubic structure (a-HgS) on both sections.

The CuGaSe2-HgSe and CuInSe2-HgSe systems

Olekseyuk I.D., Parasyuk O.V., Galka V.O.

Polish Journal of Chemistry

1998

Vol. 72, nr 1

49-54

Phase diagrams in the CuGaSe2-HgSe and CuInSe2-HgSe systems have been constructed using differential thermal, X-ray phase and microstructural analyses. The CuGaSe2-HgSe system is of the peritectic type. Solid solution of the constituent components have been found and their limit compositions have been established. They contain 0-3 ans 63-100 mol. % HgSe at 870 K. The CuInSe2-HgSe system is of the first type, due to Roozeboom classification. A continuous range of solid solutions exists between HgSe and the high-temperature beta-modification of CuInSe2. The solid solution are created on the basis of alpha-CuInSe2 which contains up to 7 mol. % HgSe at 870 K.