THE INFLUENCE OF ELEMENTS Pr AND Nd ON PHYSICOCHEMICAL PROPERTIES OF SOLID SOLUTIONS (Bi2Sb5Se3Te6J3) OF N-TYPE

The phase diagrams of the (Bi2Sb5Se3Te6I3)1-х (Pr)х and (Bi2Sb5Se3Te6I3)1-х (Nd)х systems were studied by differential thermal analysis , X–ray diffraction microstructural analysis and microhardness and density measurements. The influence of Pr and Nd elements on the physico-chemical properties solid solution (Bi2Sb5Se3Te6I3) of ,,n”-type analyzed and its phase diagram was constructed. At room temperature the (Bi2Sb5Se3Te6I3) based solid solution extend tu 4 at. % Pr. Compounds (Bi2Sb5Se3Te6I3) and Pr form the eutectic containing 12 at. % Pr which melts at 5500C. Room-temperature solubility on the basis of (Bi2Sb5Se3Te6I3) is 4,2 at. % Nd, and at the eutectic transformation, it is up to ~ 7 at. % Nd.

کلیدواژه ها:

Microstructural Analysis ، Physico-ChemicalProperties ، Eutectic Transformation