THE PHASE DIAGRAM OF THE SYSTEM Tl‒Te‒I IN THE COMPOSITIONAL RANGE OF TlI‒Tl2TeI6‒Te

The phase equilibria in the system Tl‒Te‒I in the compositional range of TlI‒Tl2TeI6‒Te were investigated by using methods differential thermal analysis and X-ray analysis. A series of polythermal sections, as well as, a projection of the liquidus surface of the phase diagram were constructed. The primary crystallization fields of the phases, as well as, types and coordinates of non- and mono¬va¬riant equilibria were determined in the system. It was established, that the subsystem TlI‒Tl2TeI6‒Te is subordinate elementary triangle characterized by non- and monovariant monotectic and eutectic equilibria