Abstract
Mg3Sb2 has been prepared by direct reaction of the elements. Powder X-ray diffraction, thermal gravimetric, differential scanning calorimetery, and microprobe data were obtained on hot pressed samples. Single phase samples of Mg3Sb2 were prepared and found to contain oxygen at the grain boundaries and to lose Mg and oxidize at temperatures above 900 K. Thermoelectric properties were characterized by Seebeck, electrical resistivity, and thermal conductivity measurements from 300 to 1023 K, and the maximum zT was found to be 0.21 at ∼875 K.
Original language | English (US) |
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Pages (from-to) | 2252-2257 |
Number of pages | 6 |
Journal | Journal of Solid State Chemistry |
Volume | 179 |
Issue number | 8 |
DOIs | |
State | Published - Aug 2006 |
Funding
We thank Alexandra Navrotsky (University of California Davis) for the use of the Netsch 409 TG/DSC instrument. Portions of this work were carried out by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. This research was funded by NASA and NSF.
Keywords
- Antimonide
- Calorimetry
- Composite thermoelectric
- High temperature thermoelectric
- MgSb
- Thermoelectric
- Zintl
- Zintl phase
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry