Nanostructured clathrates and clathrate‐based nanocomposites. Issue 3 (7th December 2015)

• Record Type: Journal Article
• Authors: Christian, R.; Ikeda, M.; Lientschnig, G.; Prochaska, L.; Prokofiev, A.; Tomeš, P.; Yan, X.; Zolriasatein, A.; Bernardi, J.; Schachinger, T.; Schwarz, S.; Steiger‐Thirsfeld, A.; Rogl, P.; Populoh, S.; Weidenkaff, A.; Paschen, S.
• Other Names: Reith Heiko guestEditor.; Nielsch Kornelius guestEditor.
• Is Part Of: Physica status solidi. Volume 213:Issue 3(2016:Mar.)
• Page Start: 784
• Page End: 801
• Publication Date: 2015-12-07
• Subjects: clathrates -- hot pressing -- melt spinning -- nanostructuring -- thermoelectric materials -- thermoelectric and transport measurements; Solid state physics -- Periodicals; Solids -- Industrial applications -- Periodicals; 530.41
• DOI: 10.1002/pssa.201532642
• Languages: English
• ISSNs: 1862-6300

Abstract

Abstract: Intermetallic clathrates are candidate materials for thermoelectric applications above room temperature. Here, we explore whether their intrinsically low lattice thermal conductivities can be further reduced by nanostructuring and whether this can further enhance their thermoelectric performance. As bulk nanostructuring routes we studied melt spinning and ball milling. To optimize the compaction process and/or stabilize the nanostructure we varied the process parameters, used additives, and studied clathrate‐based composites. Initial results on clathate nanowires as simpler model nanostructures are also presented.