两层FeSi<sub>2</sub>非均匀掺杂梯度材料热电性能研究

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两层FeSi₂非均匀掺杂梯度材料热电性能研究

1 National Key Laboratory of Nuclear Fuel and Materials, Nuclear Power Institution of China, Chengdu, 610041, China;
2 University of California, Davis, CA, US

摘要: 采用场激活方法合成掺杂浓度不同的两层非均匀梯度13相FeSi₂,用波谱分析了掺杂在两层界面处的分布,并测量了Mn掺杂丰口Co掺杂的两层非均匀掺杂梯度材料的Seebeck系数和电导率,计算了功率因子。与相应的均匀材料相比,这种结构具有调节热电性能与温度分布的能力。
- β相FeSi₂ /
- 非均匀掺杂梯度热电材料 /
- 热电性能
Abstract: The two layer inhomogeneous graded P phase FeSi₂ was preparated by Field-activitated method. The dopant content in the interface was analyzed by WDS. The Seebeck coefficient and resistivity of Mn-doped and Co-doped inhomogeneous doped samples were measured. Power factor of samples were calculated. Compared with homogeneous material, this kind of inhomogeneous dopant structure can adjust the relation between the thermo-electric performance and temperature.
- β phase FeSi₂ /
- Inhomogeneously doped graded thermoelectric material /
- Thermo-electric performance