Microstructure and properties of p-type （Bi0.25Sb0.75）2Te3 fabricated by spark plasma sintering

P-type thermoelectric material （Bi0.25Sb0.75）2Te3 was sintered by spark plasma sintering（SPS） process in the temperature range of 320-420℃. The microstructures of sintered materials were found to be well aligned, particularly when sintered at lower sintering temperatures. The electrical conductivity...

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Bibliographic Details
Published inTransactions of Nonferrous Metals Society of China Vol. 17; no. A02; pp. 1010 - 1013
Main Author 王富强 陈晖 王忠 成艳 褚颖 朱磊 简旭宇
Format Journal Article
LanguageEnglish
Published 2007
Subjects
微观结构
火花等离子体烧结
烧结温度
热电材料
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ISSN1003-6326

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Summary:P-type thermoelectric material （Bi0.25Sb0.75）2Te3 was sintered by spark plasma sintering（SPS） process in the temperature range of 320-420℃. The microstructures of sintered materials were found to be well aligned, particularly when sintered at lower sintering temperatures. The electrical conductivity of the material became larger as the sintering temperature increased. The Seebeck coefficient showed a general decreasing tendency with an increase in sintering temperature. In terms of the power factor, the optimum sintering temperature was found to be 380 ℃ for a maximum value of around 2.6 mW/K.
Bibliography:（Bi0.25Sb0.75）2Te3
43-1239/TG
（Bi0.25Sb0.75）2Te3; thermoelectric material; spark plasma sintering（SPS）; sintering temperature
spark plasma sintering（SPS）
sintering temperature
TM2
thermoelectric material
ISSN:1003-6326