INVESTIGATION OF POLYTHERMAL CUTS (Bi2S3)0.825(Pr2S3)0.175–(Bi2S3)0.85(Pr2O3)0.15 AND (Pr2S3)0.80(Pr2O3)0.20–Bi2S3 OF Pr2S3–Bi2S3–Pr2O3 TERNARY SYSTEM
(Bi2S3)0.825(Pr2S3)0.175–(Bi2S3)0.85(Pr2O3)0.15 and (Pr2S3)0.80(Pr2O3)0.20–Bi2S3 polythermal cuts of Pr2S3–Bi2S3–Pr2O3 ternary system were studied by physical-chemical complex methods, state diagrams of bofh cuts were drawn, the boundaries of region of primary crystallization and coordinates of non- and monovariant equilibria of fernary system Pr2S–Bi2S3–Pr2O3 were determined.
Keywords : phase diagram, eutectic, liquidus, luminophores, oxysulfide
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