Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1625615 | Journal of Alloys and Compounds | 2007 | 4 Pages |
Abstract
Fe doped skutterudite CoSb3 with a nominal composition of FexCo4−xSb12 (0 ≤ x ≤ 2.5), were synthesized by mechanical alloying of elemental powders, and consolidated by vacuum hot pressing. Nanostructured, single-phase skutterudites were successfully produced for the compositions of x ≤ 1.5, while second phase was found to form in case of x ≥ 2. Thermoelectric properties including thermal conductivity from 300 to 600 K were measured and discussed. Lattice thermal conductivity was greatly reduced by introducing Fe doping up to x ≤ 1.5 as well as by increasing phonon scattering in nanostructured skutterudite, leading to enhancement in the thermoelectric figure of merit.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Soon-Chul Ur, Joon-Chul Kwon, Il-Ho Kim,