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Information × Registration Number 2113U001653, Article popup.category Thesis Title popup.author popup.publication 01-01-2013 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/35255 popup.publisher Sumy State University Description By means of complex independent methods the processes occurring at preparation of Ca3Co4O9+ ceram-ics using solid-state reactions and different solution (citrate, polymeric and sol-gel) methods were investi-gated. The crystal structure and microstructure, oxygen stoichiometry, thermal expansion, electrical con-ductivity and thermo-EMF of the samples were studied and values of their power factor were calculated. It is shown that usage of solution methods let us obtain more dense and fine-grained ceramics, which is char-acterized with higher values of electrical conductivity and power factor. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35255 popup.nrat_date 2025-05-12 Close