방전 플라즈마 소결법(SPS)으로 제조된 급속응고 p-type Bi2Te3 합금의 소결 특성
Thermoelectric Properties of Rapid Solidified p-type Bi2Te3 Alloy Fabricated by Spark Plasma Sintering(SPS) Process
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초록
The p-type thermoelectric compounds of Bi2Te3 based doped with 3wt% Te were fabricated by a combination of rapid solidification and spark plasma sintering (SPS) process. The effect of holding time during spark plasma sintering (SPS) on the microstructure and thermoelectric properties were investigated using scanning electron microscope (SEM), X-ray diffraction (XRD) and thermoelectric properties. The powders as solidified consisted of homogeneous thermoelectric phases. The thermoelectric figure of merit measured to be maximum (3.41×10−3/K) at the SPS temperature of 430˚C.
Abstract
The p-type thermoelectric compounds of Bi2Te3 based doped with 3wt% Te were fabricated by a combination of rapid solidification and spark plasma sintering (SPS) process. The effect of holding time during spark plasma sintering (SPS) on the microstructure and thermoelectric properties were investigated using scanning electron microscope (SEM), X-ray diffraction (XRD) and thermoelectric properties. The powders as solidified consisted of homogeneous thermoelectric phases. The thermoelectric figure of merit measured to be maximum (3.41×10−3/K) at the SPS temperature of 430˚C.
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