| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1500367 | Scripta Materialia | 2010 | 4 Pages |
Abstract
We investigate the phase separation of the solid solution CoTi(1−x)MnxSb into the two Heusler compounds CoTiSb and CoMnSb. Energy-dispersive X-ray spectroscopy measurements on the two-phase material reveal the presence of size- and shape-tunable CoTiSb regions in a CoMnSb matrix. We demonstrate that the formed phase and grain boundaries have a considerable influence on the phonon scattering processes, which leads to a reduction in the thermal conductivity by a factor of three compared to single-phase CoTiSb.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Tanja Graf, Peter Klaer, Joachim Barth, Benjamin Balke, Hans-Joachim Elmers, Claudia Felser,