Details
| Original language | English |
|---|---|
| Pages (from-to) | 38015-38025 |
| Number of pages | 11 |
| Journal | Ceramics international |
| Volume | 49 |
| Issue number | 23 |
| Early online date | 18 Sept 2023 |
| Publication status | Published - 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
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Materials Science(all)
- Ceramics and Composites
- Chemical Engineering(all)
- Process Chemistry and Technology
- Materials Science(all)
- Surfaces, Coatings and Films
- Materials Science(all)
- Materials Chemistry
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In: Ceramics international, Vol. 49, No. 23, 01.12.2023, p. 38015-38025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A characteristic map as an approach for rapid estimating the thermal conductivity of high-temperature oxide ceramics demonstrated on 10Sc1CeSZ
AU - Gedik, Aydan
AU - Hesse, Jonas
AU - Kabelac, Stephan
N1 - Funding Information: The Deutsche Forschungsgemeinschaft (DFG) provided the experimental setup and materials as part of the major research instrumentation programm with contract number INST 187/630-1 FUGG . We would like to thank the Uni Bremen Campus GmbH (UBC) - Centre for Ceramic Materials for measuring the thermal diffusivity of the samples. Funding Information: The authors gratefully acknowledge the financial support by the Deutsche Forschungsgemeinschaft (DFG, funding code KA 1211/32-1 and KA 1211/32-2 ) for financial support.
PY - 2023/12/1
Y1 - 2023/12/1
N2 - 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.
AB - 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.
KW - 10Sc1CeSZ
KW - 8YSZ
KW - Electrolyte
KW - Heat conductivity
KW - High-temperature
KW - Oxide ceramic
KW - Solid oxide fuel cell (SOFC)
KW - Thermal conductivity
UR - http://www.scopus.com/inward/record.url?scp=85172939594&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2023.09.132
DO - 10.1016/j.ceramint.2023.09.132
M3 - Article
AN - SCOPUS:85172939594
VL - 49
SP - 38015
EP - 38025
JO - Ceramics international
JF - Ceramics international
SN - 0272-8842
IS - 23
ER -