Effects of Ca-source on the sintering and electrical properties of La 0.7Ca0.3Cr0.9Co0.1O 3-δ for solid oxide fuel cell interconnects

Sung Tae Park, Byung Hyun Choi, Mi Jung Ji, Yong Tae An, Heon Jin Choi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Effects on sintering and electrical properties of La0.7Ca 0.3Cr0.9Co0.1O3-δ system, a interconnect material for cylindrical and flat tubular solid oxide fuel cells (SOFC), have been investigated by Ca-source when using CaCO3 and CaF2.. When using CaCO3 and CaF2 was mixing as Ca-source, single phased perovskite solid solution was observed for each sample. The sintering temperature was decreased by CaF3 contents was increased. When using 0.1 mole CaF3 was densely sintered at 1400°C and relative density was 93.8%. Also, electrical conductivity in oxidation and reducing atmosphere was 47, 4.3 S/cm, respectively, due to F-ion enhance the electrical conductivity in reducing atmosphere.

Original languageEnglish
Pages (from-to)246-250
Number of pages5
JournalJournal of the Korean Ceramic Society
Volume48
Issue number3
DOIs
Publication statusPublished - 2011 May 1

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Solid oxide fuel cells (SOFC)
Electric properties
Sintering
Perovskite
Solid solutions
Ions
Oxidation
Temperature
Electric Conductivity
perovskite

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

Cite this

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title = "Effects of Ca-source on the sintering and electrical properties of La 0.7Ca0.3Cr0.9Co0.1O 3-δ for solid oxide fuel cell interconnects",
abstract = "Effects on sintering and electrical properties of La0.7Ca 0.3Cr0.9Co0.1O3-δ system, a interconnect material for cylindrical and flat tubular solid oxide fuel cells (SOFC), have been investigated by Ca-source when using CaCO3 and CaF2.. When using CaCO3 and CaF2 was mixing as Ca-source, single phased perovskite solid solution was observed for each sample. The sintering temperature was decreased by CaF3 contents was increased. When using 0.1 mole CaF3 was densely sintered at 1400°C and relative density was 93.8{\%}. Also, electrical conductivity in oxidation and reducing atmosphere was 47, 4.3 S/cm, respectively, due to F-ion enhance the electrical conductivity in reducing atmosphere.",
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Effects of Ca-source on the sintering and electrical properties of La 0.7Ca0.3Cr0.9Co0.1O 3-δ for solid oxide fuel cell interconnects. / Park, Sung Tae; Choi, Byung Hyun; Ji, Mi Jung; An, Yong Tae; Choi, Heon Jin.

In: Journal of the Korean Ceramic Society, Vol. 48, No. 3, 01.05.2011, p. 246-250.

Research output: Contribution to journalArticle

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AU - Choi, Heon Jin

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