Some Properties of the Quaternary System PbxSn1 -xTeySe1-y

摘要

The Quaternary system PbxSn1-xTeySe1-y can be visualized as either a mixture of the two pseudobinary systems lead‐tin telluride and lead‐tin selenide or as a mixture of the four binary compounds PbTe, PbSe, SnTe, and SnSe. The liquidus surface of the quaternary system has been experimentally determined from cooling curves. Liquid compositions which fall on this continuous surface are shown to form single‐phase cubic crystals, while melt compositions high in SnSe content are shown to crystallize into single‐phase orthorhombic material. A region of melt compositions is outlined, which results in two‐phase solid material.