Fabrication and thermoelectric characteristics of [(Bi,Pb)2Ba2O4±w]0.5CoO2 bulks with highly aligned grain structure

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2008

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Department of Chemistry

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en

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1-6

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JOURNAL OF APPLIED PHYSICS, Volume 103, issue 3

Abstract

Here, we report fabrication and thermoelectric characteristics of polycrystalline bulks with aligned grains of the misfit-layered cobalt oxides, [(Bi1−xPbx)2Ba2O4±w]0.5CoO2. High-quality precursor powder was prepared with a spray-drying technique. The precursor was then sintered under a uniaxial pressure to yield dense bulk samples consisting of highly aligned grains. The electrical conductivity of such samples was four times higher than that of conventionally sintered bulks. Accordingly, the thermoelectric characteristics of the grain-aligned specimens were enhanced.

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DOI

10.1063/1.2838161

Citation

Motohashi , T , Nonaka , Y , Sakai , K , Karppinen , M & Yamauchi , H 2008 , ' Fabrication and thermoelectric characteristics of [(Bi,Pb)2Ba2O4±w]0.5CoO2 bulks with highly aligned grain structure ' , Journal of Applied Physics , vol. 103 , no. 3 , 033705 , pp. 1-6 . https://doi.org/10.1063/1.2838161

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https://urn.fi/URN:NBN:fi:aalto-201805222416

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[article-cris] Kemian tekniikan korkeakoulu / CHEM