naa a22 4500 510802303 CHVBK 20180411083400.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11664-012-2401-2 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2401-2 Thermoelectric Properties of Yb1− x (Er,Lu) x Al3 Solid Solutions [Elektronische Daten] [Gloria Lehr, Donald Morelli] Ytterbium trialuminide (YbAl3) has one of the largest thermoelectric power factors of known materials below room temperature, making it a material of interest for low-temperature thermoelectric devices. However, the high thermal conductivity, which is due to a combination of a large electronic thermal conductivity and a moderately large lattice thermal conductivity, is detrimental to the figure of merit. Substitution of different atoms on the Yb site was performed in order to assess their ability to favorably alter the electronic structure and/or reduce the lattice thermal conductivity. We have synthesized and studied the thermoelectric properties of the solid solutions of YbAl3 with ErAl3 and LuAl3. Results for electrical conductivity, thermal conductivity, and Seebeck coefficient for several of these solid solutions over the temperature range of 80K to 300K are reported. Although most substituted samples are driven toward a metallic state, we find that for some compositions the figure of merit is enhanced relative to pure YbAl3. TMS, 2013 YbAl3 nationallicence trialuminides nationallicence thermoelectric properties nationallicence Lehr Gloria Department of Chemical Engineering and Materials Science, Michigan State University, 48824, East Lansing, MI, USA aut Morelli Donald Department of Chemical Engineering and Materials Science, Michigan State University, 48824, East Lansing, MI, USA aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1697-1701 0361-5235 42:7<1697 2013 42 11664 https://doi.org/10.1007/s11664-012-2401-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2401-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lehr Gloria Department of Chemical Engineering and Materials Science, Michigan State University, 48824, East Lansing, MI, USA aut NATIONALLICENCE 700 1- Morelli Donald Department of Chemical Engineering and Materials Science, Michigan State University, 48824, East Lansing, MI, USA aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1697-1701 0361-5235 42:7<1697 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer