Paper Title:
Research on Properties of Ca3-x La xCo4O9 Thermoelectric Material with Adding La
  Abstract

Ca3Co4O9 and Ca3-xLaxCo4O9 powders were prepared by sol-gel process. The Ca-Co-O thermoelectric material ceramics were prepared. The ceramics materials were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The microstructure and thermoelectric properties of ceramics were researched. The results indicate that the crystal of Ca3-xLaxCo4O9 with La adding growth ideally, the material had high density and low pore rate. The Ca3-xLaxCo4O9 ceramics contain directional array plate-shaped grains with layered structure. The thermoelectric properties of Ca3-xLaxCo4O ceramics were excellent. There were high Seebeck coefficient and high electrical conductivity for Ca3-xLaxCo4O9 ceramics. The power factor increased with temperature increasing.

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
New Functional Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
613-617
DOI
10.4028/www.scientific.net/AMR.287-290.613
Citation
L. P. Zhang, X. J. Yu, Z. W. Ge, Y. H. Dong, D. G. Li, "Research on Properties of Ca3-x La xCo4O9 Thermoelectric Material with Adding La", Advanced Materials Research, Vols. 287-290, pp. 613-617, 2011
Online since
July 2011
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Price
$32.00
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