Effect on the Properties of Different Preparation Processes in Ca3Co4O9 Thermoelectric Material

Effect on the Properties of Different Preparation Processes in Ca3Co4O9 Thermoelectric Material

Ca 3 Co 4 O 9 samples were prepared by pressureless sintering, hot-pressing sintering (HP) and spark plasma sintering (SPS), and the effect of different preparation processes on the thermoelectric properties of Ca 3 Co 4 O 9 were systematically studied. The results show that comparing with the press...

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Bibliographische Detailangaben
Hauptverfasser: Chen Yuankui, Chen Chuan, Li Xiang
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Ceramics
cobaltite
Conductivity
Crystals
Phonons
preparation process
spark plasma sintering
Temperature dependence
Thermal conductivity
thermoelectric properties
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Zusammenfassung:Ca 3 Co 4 O 9 samples were prepared by pressureless sintering, hot-pressing sintering (HP) and spark plasma sintering (SPS), and the effect of different preparation processes on the thermoelectric properties of Ca 3 Co 4 O 9 were systematically studied. The results show that comparing with the pressureless sample, samples produced by the HP and SPS method have similar Seebeck coefficient, higher electrical conductivity and thermal conductivity. Electrical conductivity of HP and SPS samples improved much more than the increase of thermal conductivity on the effect of ZT value, so integrated thermoelectric properties: pressureless sample
DOI:10.1109/iCECE.2010.1131