PHYSCO-CHEMICAL INVESTIGATION OF THE TlAs2Se3Te–TlAs2Se4 SYSTEM

I.G.Aliyev

Phase equilibria in the TlAs₂Se₃Te–TlAs₂Se₄ system has been studied using the methods of differential-thermal analysis, X-ray diffraction, microstructural analysis and microhardness and density measurements and state diagram has been plotted. It is established that the latter is a quasibinary section of the TlTe–TlSe–As₂Se₃ quaternary system. The solubility range of TlAs₂Se₃Te – based solid solutions is extended to 10 mol. %, and the region of TlAs₂Se₄based solid solutions is extended to 7 mol. %. Under general conditions all the alloys of the system are received in a glassy form.

Keywords : quasibinary, eutectic, incongruently, monotectic, glass forming, syngony

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