|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||High Efficiency Thermoelectric Materials (skutterudites, half Heusler alloys and clathrates) and Their Mechanical Properties
||Gerda Rogl, Andriy Grytsiv, Ernst Bauer, Michael Zehetbauer, Peter Rogl
|On-Site Speaker (Planned)
Thermoelectric (TE) conversion of waste heat into electricity demands optimised thermal and electrical transport in the leg material over a wide temperature range. Skutterudites, half-Heusler alloys and clathrates are known as promising candidates for environmentally friendly and low-cost TE materials in the middle to high temperature range. In this paper we present our latest p- and n-type TE materials, with high ZT values and high thermal-electric conversion efficiencies.
A prerequisite for commercial use is mechanical robustness to undergo repetitive thermo cycling, but also to resist cracking or failure from any possible vibration. For these reasons, hardness, elastic moduli and fracture toughness and their dependence on composition, density and temperature were measured and evaluated as well as the coefficient of thermal expansion, which is important concerning modules, built with p- and n-type materials. An overview of all our data in comparison with other TE materials will be given.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)