Innovative Stainless-Steel Porous Substrate for Metal-Supported Solid Oxide Fuel Cells

IF 1.3 4区工程技术 Q3 ENGINEERING, MECHANICAL Journal of Engineering Thermophysics Pub Date : 2025-01-17 DOI:10.1134/S1810232824040167

M. R. Alsayedomar, A. G. Laptev, A. M. Dimiev

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Abstract

Porous metallic substrate for metal-supported solid oxide fuel cells was developed utilizing stainless-steel powder and triethanolamine as a new binder. Starch was added as an additional agent to increase porosity and gas permeability of the samples. The structure and functional properties of the obtained substrates as the function of the additives content and the processing conditions were investigated. The optimal parameters have been determined. When the combined percentage of the binder and pore-former was raised up to 5%, the porosity and permeability increased up to 46.2% and 3.1 d respectively. As the sintering time of the substrate increased to 6h, the hardness grew up to 311 HRC. A thermal expansion coefficient value of \(\sim 14\times 10^{-6}\) has been obtained. The results demonstrate how the preparation process affects all of the major parameters, including porosity, permeability, hardness and roughness. Both the content of additives and processing conditions may vary in relatively broad range to attain particular required properties of the substrates. Better to similar properties compared to literature data have been obtained.

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金属支撑固体氧化物燃料电池的创新不锈钢多孔衬底

以不锈钢粉和三乙醇胺为新型粘结剂，研制了用于金属支撑固体氧化物燃料电池的多孔金属衬底。淀粉作为附加剂加入，以增加孔隙度和透气性的样品。考察了添加剂含量和加工条件对所得基体结构和功能性能的影响。确定了最佳工艺参数。当粘结剂和成孔剂的掺量增加到5％时%, the porosity and permeability increased up to 46.2% and 3.1 d respectively. As the sintering time of the substrate increased to 6h, the hardness grew up to 311 HRC. A thermal expansion coefficient value of \(\sim 14\times 10^{-6}\) has been obtained. The results demonstrate how the preparation process affects all of the major parameters, including porosity, permeability, hardness and roughness. Both the content of additives and processing conditions may vary in relatively broad range to attain particular required properties of the substrates. Better to similar properties compared to literature data have been obtained.

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来源期刊

Journal of Engineering Thermophysics THERMODYNAMICS-ENGINEERING, MECHANICAL

CiteScore

2.30

自引率

12.50%

发文量

审稿时长

3 months

期刊介绍： Journal of Engineering Thermophysics is an international peer reviewed journal that publishes original articles. The journal welcomes original articles on thermophysics from all countries in the English language. The journal focuses on experimental work, theory, analysis, and computational studies for better understanding of engineering and environmental aspects of thermophysics. The editorial board encourages the authors to submit papers with emphasis on new scientific aspects in experimental and visualization techniques, mathematical models of thermophysical process, energy, and environmental applications. Journal of Engineering Thermophysics covers all subject matter related to thermophysics, including heat and mass transfer, multiphase flow, conduction, radiation, combustion, thermo-gas dynamics, rarefied gas flow, environmental protection in power engineering, and many others.