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SPS-assisted preparation of the Magnéli phase WO2.90 for thermoelectric applications

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons126891

Veremchuk,  I.
Igor Veremchuk, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons126626

Grin,  Y.
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Kieslich, G., Birkel, C. S., Douglas, J. E., Gaultois, M., Veremchuk, I., Seshadri, R., et al. (2013). SPS-assisted preparation of the Magnéli phase WO2.90 for thermoelectric applications. Journal of Materials Chemistry A, 1(42), 13050-13054. doi:10.1039/c3ta12145c.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0015-1FC1-6
Abstract
We describe the preparation and simultaneous consolidation of WO2.90 by spark plasma sintering (SPS). SPS allows for the direct manufacturing of large amounts of consolidated material. Synchrotron powder X-ray diffraction indicates that the material is single phase. Microstructure analysis indicates that the pellet is fully dense, allowing high-temperature thermoelectric properties to be reliably measured. The as-prepared samples of WO2.90 reach a ZT of 0.1 at 1100 K.