| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1445239 | Acta Materialia | 2015 | 7 Pages |
Abstract
Mg3−xNaxSb2 has been prepared successfully by mechanical alloying plus hot pressing to investigate the effects of Na doping on the thermoelectric properties. Thermoelectric properties were characterized by the Seebeck coefficient, electrical resistivity, thermal conductivity, and thermoelectric figure of merit (ZT) from 298 to 773 K. Transport measurements reveal that an optimum doping of 1.25 at.% Na on Mg achieved ZT of 0.6 at 773 K. The enhancement in ZT is attributed to increased carrier concentration and power factor. The low cost, abundance, and nontoxicity makes this material a potentially promising thermoelectric material for power generation at a heat source below 773 K.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jing Shuai, Yumei Wang, Hee Seok Kim, Zihang Liu, Jingying Sun, Shuo Chen, Jiehe Sui, Zhifeng Ren,