A characteristic map as an approach for rapid estimating the thermal conductivity of high-temperature oxide ceramics demonstrated on 10Sc1CeSZ

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Aydan Gedik
  • Jonas Hesse
  • Stephan Kabelac

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Details

Original languageEnglish
Pages (from-to)38015-38025
Number of pages11
JournalCeramics international
Volume49
Issue number23
Early online date18 Sept 2023
Publication statusPublished - 1 Dec 2023

Abstract

This work presents an easy applicable method for estimating thermal conductivity of oxide ceramic samples in a high-temperature SOFC/SOEC system. An experimental investigation establishes a thermal conductivity map for various oxide ceramics in the temperature range of 700 - 900 °C. Material specific properties are determined using laser flash analysis, displacement measurement for density and differential scanning calorimetry for heat capacity. The total thermal conductivity, incorporating conduction and radiation, is assumed based on a linear relationship with temperature gradient. Deviations in measurements are attributed to increasing radiation effects. The method provides a rough estimation of thermal conductivity, with 8YSZ exhibiting good agreement with literature values and 10Sc1CeSZ showing a range of 2.3 (+0.32/-0.48) - 2.8 (+0.96/-1) W/mK.

Keywords

    10Sc1CeSZ, 8YSZ, Electrolyte, Heat conductivity, High-temperature, Oxide ceramic, Solid oxide fuel cell (SOFC), Thermal conductivity

ASJC Scopus subject areas

Cite this

A characteristic map as an approach for rapid estimating the thermal conductivity of high-temperature oxide ceramics demonstrated on 10Sc1CeSZ. / Gedik, Aydan; Hesse, Jonas; Kabelac, Stephan.
In: Ceramics international, Vol. 49, No. 23, 01.12.2023, p. 38015-38025.

Research output: Contribution to journalArticleResearchpeer review

Gedik A, Hesse J, Kabelac S. A characteristic map as an approach for rapid estimating the thermal conductivity of high-temperature oxide ceramics demonstrated on 10Sc1CeSZ. Ceramics international. 2023 Dec 1;49(23):38015-38025. Epub 2023 Sept 18. doi: 10.1016/j.ceramint.2023.09.132
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abstract = "This work presents an easy applicable method for estimating thermal conductivity of oxide ceramic samples in a high-temperature SOFC/SOEC system. An experimental investigation establishes a thermal conductivity map for various oxide ceramics in the temperature range of 700 - 900 °C. Material specific properties are determined using laser flash analysis, displacement measurement for density and differential scanning calorimetry for heat capacity. The total thermal conductivity, incorporating conduction and radiation, is assumed based on a linear relationship with temperature gradient. Deviations in measurements are attributed to increasing radiation effects. The method provides a rough estimation of thermal conductivity, with 8YSZ exhibiting good agreement with literature values and 10Sc1CeSZ showing a range of 2.3 (+0.32/-0.48) - 2.8 (+0.96/-1) W/mK.",
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