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Information × Registration Number 0224U032888, (0123U102769) , R & D reports Title Development of solid oxide fuel cell electrolyte with improved operational properties popup.stage_title Дослідження механічної поведінки структурованого електроліту керамічної паливної комірки на основі оксиду цирконію Head Brodnikovsk Yegor M., Кандидат технічних наук Registration Date 10-12-2024 Organization Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine popup.description1 - development of an approach of the structure formation and phase composition of zirconia-based electrolyte for solid oxide fuel cells (SOFC) and find out its influence on the electrolyte functional properties. - find out the regularity of formation of the zirconia-based electrolyte structure depending on the composition of the stabilizing additive (Sc2O3, Y2O3, CeO2) and their combinations, and to study the influence of the formed structure features on the electrical properties and mechanical behavior of the electrolyte materials. Identifying the structure-property relationship for the developed electrolyte materials will allow determining its optimal composition and manufacturing modes that will provide the required properties. - development of SOFC electrolyte material with higher electrical conductivity compared to the zirconia stabilized with 8 mol. % yttria (8YSZ), which is currently the traditional and most widely used electrolyte material in production of the commercial combined heat and power systems based on SOFC. popup.description2 The regularities of the formation of the structure and mechanical properties of structured electrolytes 10Sc1CeSZ-8YSZ (33-,40-,50-,65-,75-,90-%) depending on the initial composition of the powder mixtures and samples of 10Sc1CeSZ and 8YSZ were found. It was found that porosity of the 10Sc1CeSZ-8YSZ electrolytes decreased with an increasing of the 8YSZ content, what correlates with increasing of their mechanical strength. The electrolyte 10Sc1CeSZ-8YSZ(50-wt.%) demonstrated the maximum values of strength of 208 MPa among the studied composite samples. It was found that an increase of the 8YSZ content in the composite electrolytes provided decrease of their average grain size. Thus, the average grain sizes of the 10Sc1CeSZ-8YSZ electrolytes were: 1.7, 1.5, 1.2, and 1.2 μm for samples with a content of 33, 50, and 75 wt. % 8YSZ, and pure 8YSZ, respectively. Product Description popup.authors Brodnikovskyi Yehor M. Brodnikovskyi Dmytro M. Vasiliev Oleksandr O. Vasyliev Oleksandr D. Holovkova Maryna Ye, Horda Ruslana V, Lysunenko Natalia O. Molchanovska Halyna M. Polishko Ihor O, popup.nrat_date 2024-12-10 Close