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Information × Registration Number 0220U102196, 0119U103430 , R & D reports Title Comparative study of the influence of the structure of solid oxide fuel cell’s electrolyte on its mechanical behavior and electrical properties popup.stage_title Head Brodnikovskа Irynа V., Кандидат технічних наук Registration Date 11-03-2020 Organization Institute for Problems in Materials Science popup.description2 The objects of study are the structure and properties of the solid oxide fuel cell electrolyte. The purpose of the work is to establish the regularity of the zirconium ceramic electrolyte structure formation in the process of its manufacture and to study the influence of the features of the formed structure on its mechanical behavior and electrical properties. Research methods - hydrostatic weighing, biaxial bending, impedance spectroscopy, scanning electron microscopy. It was found that ceramic samples made under the same conditions from different powders showed similar porosity values. Thus, as the sintering temperature increased from 1100 to 1500 ° C, the porosity decreased from 52 to 2% and from 56 to 2% for samples from Ukrainian and commercial powder, respectively. Samples made of Ukrainian powder have been found to exhibit higher values of strength and electrical conductivity than samples made of commercial powder. Thus, ceramic samples made of Ukrainian powder sintered in the temperature range of 1300 - 1500 ° C had a biaxial strength at ~ 175 MPa, and their electrical conductivity at 600 ° C increased from 2.57 ∙ 10-3 to 3.5 ∙ 10-3 Sm/cm with increasing sintering temperature. In ceramic specimens of commercial powder sintered in the temperature range of 1300 - 1500 ° C, the biaxial strength increased from 68 to 167 MPa, and their electrical conductivity at 600 ° C increased from 0.84 ∙ 10-3 to 2.82 ∙ 10- 3 Sm/cm with increasing sintering temperature. Product Description popup.authors Brodnikovskyi Yegor М. Golovkova Maryna E Kotko Andrii V Myslyvchenko Oleksandr M Polishko Ihor O popup.nrat_date 2020-04-02 Close