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Information × Registration Number 0206U002421, 0103U001887 , R & D reports Title Effect of components substitution on structure, thermoelectric and magnetic properties of intermetallic compounds popup.stage_title Head Bodak Oksana Ivanivna, Registration Date 07-02-2006 Organization Ivan Franko Lviv National University popup.description2 The main purpose of the research works were an investigation of the components interaction in the ternary systems, the effect of doping of the ternary compounds with the MgAgAs, Y3Au3Sb4, and CeNi8.5Si4.5 structure types by other components on their physical properties, determination of the stability ranges, the crystal and electronic structures of the related solid solutions. The isothermal sections of the phase diagrams of 7 ternary systems were built in the full concentration range. The crystal structure, magnetic and electric transport properties were investigated for 56 intermetallic compounds. For the TiCo1-xCuxSb, ZrNi1-xCoxSn, VFe1-xCuxSb, R3Cu3Sb4-xSnx (R = La, Ce, Pr, Nd,and Sm), and R(Fe,Co)9Si4 (R = Y, Sm, Gd, and Tb) substitutional solid solutions the stability ranges, crystal and electronic structures, and the physical properties were studied. Electronic structure calculations of the 6 ternary compounds and based on them 4 solid solutions confirmed that the MgAgAs structure type compounds were the intermetallic semiconductors. Doping of these compounds results in increasing of the thermoelectric power factor that gives a possibility to apply them as the active elements for the thermoelectric generators. On base of the obtained results an insulator-metal transition of electric conductivity scheme was proposed for the intermetallic semiconductors of the MgAgAs structure type.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close