Multifilled nanocrystalline p-type didymium - Skutterudites with ZT > 1.2

Autor(en)

Gerda Rogl, Andrij Grytsiv, Peter Franz Rogl, Ernst Bauer, Michael Kerber, Michael Zehetbauer, Stephan Puchegger

Abstrakt

The influence of double, triple and multi-filling of didymium, Ca, Ba, Sr and Yb in Fe3CoSb12 on the thermoelectric performance was investigated. Ball-milling followed by hot pressing was used for sample preparation to gain dense and nanostructured samples. Almost all of the samples studied in this work have a ZT higher than 1, some even reach ZT > 1.2 at 700 K or at 800 K and an average ZT up to 1.0 in the temperature range from 300 K to 800 K. Thermal expansion, hardness and the elastic moduli were investigated exemplarily for two alloys with ZT > 1.2. With these results we can claim to have very promising p-type skutterudites for thermoelectric devices.

Organisation(en)

Institut für Physikalische Chemie, Physik Nanostrukturierter Materialien, Dynamik Kondensierter Systeme

Externe Organisation(en)

Technische Universität Wien

Journal

Intermetallics

Band

18

Seiten

2435-2444

Anzahl der Seiten

10

ISSN

0966-9795

DOI

https://doi.org/10.1016/j.intermet.2010.08.041

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

104017 Physikalische Chemie, 103018 Materialphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/f9d46cb2-b4e9-433f-bcb8-c3cd95ac9984