naa a22 4500 510802583 CHVBK 20180411083402.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11664-013-2534-y doi (NATIONALLICENCE)springer-10.1007/s11664-013-2534-y Thermal Conductivity in Bi1− x Sb x Solid Solutions [Elektronische Daten] [E. Rogacheva, A. Doroshenko, O. Nashchekina, Yu. Men′shov] Bi1−x Sb x solid solutions have attracted much attention as promising low-temperature thermoelectric materials. Previously, we observed distinct extrema in the isotherms of the transport and mechanical properties of polycrystalline Bi1−x Sb x and attributed their presence to the transition from diluted to concentrated solid solutions and to the reconstruction of the energy band structure under increasing Sb concentration. The goal of the present work is a detailed study of the concentration dependences of the thermal conductivity λ for Bi1−x Sb x polycrystalline solid solutions (x=0 to 0.09) in the temperature range of 170K to 300K. It is established that the λ(x) dependences exhibit a nonmonotonic behavior: in certain concentration ranges an anomalous increase in λ with increasing x is observed. It is shown that the concentration dependences of the thermoelectric figure of merit calculated on the basis of the measured λ values are also nonmonotonic. The obtained data represent additional evidence in favor of our assumptions stated earlier about a significant effect of electronic phase transitions observed in Bi1−x Sb x solid solutions on the concentration dependences of their thermoelectric properties. These results should be taken into account when developing new Bi1−x Sb x -based materials. TMS, 2013 Bi-Sb solid solutions nationallicence concentration nationallicence thermal conductivity nationallicence phase transitions nationallicence Rogacheva E. National Technical University "Kharkov Polytechnic Institute”, 21 Frunze St., 61002, Kharkov, Ukraine aut Doroshenko A. National Technical University "Kharkov Polytechnic Institute”, 21 Frunze St., 61002, Kharkov, Ukraine aut Nashchekina O. National Technical University "Kharkov Polytechnic Institute”, 21 Frunze St., 61002, Kharkov, Ukraine aut Men′shov Yu National Technical University "Kharkov Polytechnic Institute”, 21 Frunze St., 61002, Kharkov, Ukraine aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 2098-2102 0361-5235 42:7<2098 2013 42 11664 https://doi.org/10.1007/s11664-013-2534-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-013-2534-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rogacheva E. National Technical University "Kharkov Polytechnic Institute”, 21 Frunze St., 61002, Kharkov, Ukraine aut NATIONALLICENCE 700 1- Doroshenko A. National Technical University "Kharkov Polytechnic Institute”, 21 Frunze St., 61002, Kharkov, Ukraine aut NATIONALLICENCE 700 1- Nashchekina O. National Technical University "Kharkov Polytechnic Institute”, 21 Frunze St., 61002, Kharkov, Ukraine aut NATIONALLICENCE 700 1- Men′shov Yu National Technical University "Kharkov Polytechnic Institute”, 21 Frunze St., 61002, Kharkov, Ukraine aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 2098-2102 0361-5235 42:7<2098 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer