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Structural, magnetic, elastic, dielectric and electrical properties of hot-press sintered Co1−xZnxFe2O4 (x = 0.0, 0.5) spinel ferrite nanoparticles

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dc.title Structural, magnetic, elastic, dielectric and electrical properties of hot-press sintered Co1−xZnxFe2O4 (x = 0.0, 0.5) spinel ferrite nanoparticles en
dc.contributor.author Yadav, Raghvendra Singh
dc.contributor.author Kuřitka, Ivo
dc.contributor.author Havlica, Jaromír
dc.contributor.author Hnatko, Miroslav
dc.contributor.author Alexander, Cigáň
dc.contributor.author Masilko, Jiří
dc.contributor.author Kalina, Lukáš
dc.contributor.author Hajdúchová, Miroslava
dc.contributor.author Rusnak, Jaroslav
dc.contributor.author Enev, Vojtěch
dc.relation.ispartof Journal of Magnetism and Magnetic Materials
dc.identifier.issn 0304-8853 OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2018
utb.relation.volume 447
dc.citation.spage 48
dc.citation.epage 57
dc.type article
dc.language.iso en
dc.publisher Elsevier BV
dc.identifier.doi 10.1016/j.jmmm.2017.09.033
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0304885317314397
dc.subject Hot-press sintering en
dc.subject Magnetic properties en
dc.subject Nanoparticles en
dc.subject Spinel ferrite en
dc.description.abstract In this article, Co1−xZnxFe2O4 (x = 0.0 and 0.5) disc-shaped pellets were formed by hot-press sintering of nanoparticles at temperature 925 °C for 10 min in vacuum atmosphere under 30 MPa mechanical pressure. X-ray diffraction study confirmed the formation of spinel cubic ferrite structure of hot-press sintered spinel ferrite Co1−xZnxFe2O4 (x = 0.0 and 0.5) samples. The scanning electron microscopy image indicated that the growth and densification of smaller ferrite nanoparticles were higher than larger ferrite nanoparticles. Magnetic properties of sintered samples were investigated by the superconducting quantum interface device (SQUID) magnetometer at room temperature. The hot press sintered Co1−xZnxFe2O4 (x = 0.0 and 0.5) pellet samples exhibited magnetic properties dependent on the grain size of spinel ferrite particles. The maximum saturation magnetization 82.47 emu/g was obtained for Co0.5Zn0.5Fe2O4 hot press sintered sample of ball-milled ferrite particles. Further, the impact of grain size and density of sample on hardness, dielectric property and ac conductivity of hot-press sintered samples was investigated. In addition, the longitudinal wave velocity (Vl), transverse wave velocity (Vt), mean elastic wave velocity (Vm), bulk modulus (B), rigidity modulus (G), Young's modulus (E), Poisson ratio (σ) and Debye temperature (θD) were calculated. The elastic moduli of hot press sintered ferrite samples were corrected to zero porosity using Hosselman and Fulrath model. © 2017 Elsevier B.V. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1007532
utb.identifier.obdid 43878219
utb.identifier.scopus 2-s2.0-85030160811
utb.identifier.wok 000414321900008
utb.identifier.coden JMMMD
utb.source j-scopus
dc.date.accessioned 2018-01-15T16:31:17Z
dc.date.available 2018-01-15T16:31:17Z
dc.description.sponsorship Ministry of Education, Youth and Sports of the Czech Republic - Program NPU I [LO1504]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Yadav, Raghvendra Singh
utb.contributor.internalauthor Kuřitka, Ivo
utb.scopus.affiliation Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, Zlín, Czech Republic; Materials Research Centre, Brno University of Technology, Purkyňova 464/118, Brno, Czech Republic; Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, Slovakia; Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, Slovakia; Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, Slovakia
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