|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Energy Materials 2017: Energy and Environmental Issues in Materials Manufacturing and Processing
||Thermoelectric Properties of La-doped SrTiO3 Materials Prepared by Mechanical Alloying
||Daquan Liu, Huijun Kang, Jinling Li, Tongmin Wang
|On-Site Speaker (Planned)
La-doped SrTiO3 were prepared by mechanical alloying with carbon burial sintering, for the purpose of obtaining pure phase and fine materials in one step. The La doping levels were controlled from 0 to 20 mol% by changing experimental conditions. Thermoelectric properties of bulk La-doped SrTiO3 were measured from 300 K to 1100 K. We found that the electronic conductivity of pure sample improved after carbon burial sintering, and the power factor of La-doped samples depended on the La doping level. The high thermal stability of La-doped samples is suitable for high-temperature thermoelectric applications. Unlike other fabrication method, such as solid-state reaction method or sol-gel method, this synthesis method can obtain pure and fine SrTiO3 powders at room temperature without liquid. This approach is simple, cost effective and, more importantly, has great potential for large-scale applications.
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