CAJ | 학술논문

用固相反应法制备( Ca1-x Yx ) MnO3( x分别为0、0．03、0．05、0．07、0．09 mol)热电材料,用自制设备测试样品的热电性能,研究了Y3+掺杂对CaMnO3热电性能的影响。结果表明：Y3+掺杂可以有效地改善样品的热电性能,其中( Ca0．91 Y0．09) MnO3样品的热电性能较优；当高温端温度为880 K时,测得电阻率为74 mΩ·m,Seebeck系数为-112μV/K,输出功率达到68 mW。
용고상반응법제비( Ca1-x Yx ) MnO3( x분별위0、0．03、0．05、0．07、0．09 mol)열전재료,용자제설비측시양품적열전성능,연구료Y3+참잡대CaMnO3열전성능적영향。결과표명：Y3+참잡가이유효지개선양품적열전성능,기중( Ca0．91 Y0．09) MnO3양품적열전성능교우；당고온단온도위880 K시,측득전조솔위74 mΩ·m,Seebeck계수위-112μV/K,수출공솔체도68 mW。
CaMnO3 is an important N-type thermoelectric material. (Ca1-xYx)MnO3(x=0, 0. 03, 0. 05, 0. 07, 0. 09)thermoe-lectric samples were synthesized based on solid state reaction method, and thermoelectric properties were measured with self-made e-quipment. The results show that Y3+doping can improve the thermoelectric properties effectively. As for Ca0. 91 Y0. 09 MnO3 , during the test temperature of high side reaches 880K, the resistivity, Seebeck coefficient and maximum output power are equal to 7. 4 × 10 -4Ω· m, -112 μV/K, 68 mW, respectively.