Preparation and thermoelectlc properties of (Ca0.9Yb 0.1)3Co4O9Ag ceramic composites

Yan Lu; Sun Song; Qiu Sun; Fu Ping Wang

Preparation and thermoelectlc properties of (Ca_0.9Yb _0.1)₃Co₄O₉Ag ceramic composites

Yan Lu^*
, Sun Song
, Qiu Sun
, Fu Ping Wang

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

(Ca_0.9Yb_0.1C)₃C₉/Ag polyerystalline samples were prepared by a polyacrylamide gel method followed by a Spark Plasma Sintering(SPS) technique. Thermoelectic properties of (Ca _0.9Yb_0.1C)₃C₉/Ag ceramics were studied at room temperature. The results indicate that Ag particles are dispersed in the Ca₃Co₄O₉ matrix as the second phase. The Ag particles with around 0.1 μ are dispersed homogeneously in the Ca₃Co₄O₉ matrix. The relative densities of the SPS samples are all above 99%, and the electrical conductivity increases with the increase of Ag. Though the addition of Ag decreases the Seebeck coefficient, the power factor of Ag composites is improved due to the obvious increase of electrical conductivity.

Original language	English
Pages (from-to)	1682-1685
Number of pages	4
Journal	Chinese Journal of Inorganic Chemistry
Volume	25
Issue number	9
State	Published - Sep 2009
Externally published	Yes

Keywords

Ag composite
CaCoO
Thermoelectric properties
Yb substituted

Cite this

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title = "Preparation and thermoelectlc properties of (Ca0.9Yb 0.1)3Co4O9Ag ceramic composites",

abstract = "(Ca0.9Yb0.1C)3C9/Ag polyerystalline samples were prepared by a polyacrylamide gel method followed by a Spark Plasma Sintering(SPS) technique. Thermoelectic properties of (Ca 0.9Yb0.1C)3C9/Ag ceramics were studied at room temperature. The results indicate that Ag particles are dispersed in the Ca3Co4O9 matrix as the second phase. The Ag particles with around 0.1 μ are dispersed homogeneously in the Ca3Co4O9 matrix. The relative densities of the SPS samples are all above 99\%, and the electrical conductivity increases with the increase of Ag. Though the addition of Ag decreases the Seebeck coefficient, the power factor of Ag composites is improved due to the obvious increase of electrical conductivity.",

keywords = "Ag composite, CaCoO, Thermoelectric properties, Yb substituted",

author = "Yan Lu and Sun Song and Qiu Sun and Wang, \{Fu Ping\}",

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volume = "25",

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publisher = "Chinese Chemical Society",

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TY - JOUR

T1 - Preparation and thermoelectlc properties of (Ca0.9Yb 0.1)3Co4O9Ag ceramic composites

AU - Lu, Yan

AU - Song, Sun

AU - Sun, Qiu

AU - Wang, Fu Ping

PY - 2009/9

Y1 - 2009/9

N2 - (Ca0.9Yb0.1C)3C9/Ag polyerystalline samples were prepared by a polyacrylamide gel method followed by a Spark Plasma Sintering(SPS) technique. Thermoelectic properties of (Ca 0.9Yb0.1C)3C9/Ag ceramics were studied at room temperature. The results indicate that Ag particles are dispersed in the Ca3Co4O9 matrix as the second phase. The Ag particles with around 0.1 μ are dispersed homogeneously in the Ca3Co4O9 matrix. The relative densities of the SPS samples are all above 99%, and the electrical conductivity increases with the increase of Ag. Though the addition of Ag decreases the Seebeck coefficient, the power factor of Ag composites is improved due to the obvious increase of electrical conductivity.

AB - (Ca0.9Yb0.1C)3C9/Ag polyerystalline samples were prepared by a polyacrylamide gel method followed by a Spark Plasma Sintering(SPS) technique. Thermoelectic properties of (Ca 0.9Yb0.1C)3C9/Ag ceramics were studied at room temperature. The results indicate that Ag particles are dispersed in the Ca3Co4O9 matrix as the second phase. The Ag particles with around 0.1 μ are dispersed homogeneously in the Ca3Co4O9 matrix. The relative densities of the SPS samples are all above 99%, and the electrical conductivity increases with the increase of Ag. Though the addition of Ag decreases the Seebeck coefficient, the power factor of Ag composites is improved due to the obvious increase of electrical conductivity.

KW - Ag composite

KW - CaCoO

KW - Thermoelectric properties

KW - Yb substituted

UR - https://www.scopus.com/pages/publications/70349335961

M3 - 文章

AN - SCOPUS:70349335961

SN - 1001-4861

VL - 25

SP - 1682

EP - 1685

JO - Chinese Journal of Inorganic Chemistry

JF - Chinese Journal of Inorganic Chemistry

IS - 9

ER -

Preparation and thermoelectlc properties of (Ca_0.9Yb _0.1)₃Co₄O₉Ag ceramic composites

Abstract

Keywords

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