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Publikācija: Comparison of Different Methods to Produce Dense Zinc Ferrite Ceramics with High Electrical Resistance

Publication Type Scientific article indexed in SCOPUS or WOS database
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Comparison of Different Methods to Produce Dense Zinc Ferrite Ceramics with High Electrical Resistance
Field of research 2. Engineering and technology
Sub-field of research 2.5 Materials engineering
Authors Andris Šutka
Marian Stingaciu
Dmitrijs Jakovļevs
Gundars Mežinskis
Keywords zinc ferrite, spray pyrolysis, spark plasma sintering, electrical properties
Abstract Three different methods were used to produce dense ZnFe2O4 ceramics with high electrical resistance – spray pyrolysis (SP), conventional sintering (CS) and spark plasma sintering (SPS). The phase purity was determined by X-ray diffraction and the morphology/particle size investigated by scanning electron microscopy. It was found that SP is the most appropriate method to produce a dense ZnFe2O4 ceramics with high electrical resistivity. By using SP method, about 500 nm thick ZnFe2O4 films were obtained possessing a resistivity with 7 orders of magnitude higher than resistivity of ZnFe2O4 pellet sintered by SPS. Both samples obtained by SP and SPS show density close to the theoretical value. The sample obtained by CS shows a low resistivity and relatively high porosity.
DOI: 10.1016/j.ceramint.2013.07.093
Hyperlink: http://www.sciencedirect.com/science/article/pii/S0272884213008870 
Reference Šutka, A., Stingaciu, M., Jakovļevs, D., Mežinskis, G. Comparison of Different Methods to Produce Dense Zinc Ferrite Ceramics with High Electrical Resistance. Ceramics International, 2014, Vol.40, Iss.1, Part B, pp.2519-2522. ISSN 0272-8842. Available from: doi:10.1016/j.ceramint.2013.07.093
Additional information Citation count:
ID 19736