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Title: Obtaining and Main Dielectric Properties of Ba0.6Pb0.4TiO3/graphene Oxide Composite
Authors: Skulski, Ryszard
Bochenek, Dariusz
Brzezińska, Dagmara
Stobinski, Leszek
Niemiec, Przemysław
Dercz, Grzegorz
Osińska, Katarzyna
Keywords: composite; ferroelectrics; graphene oxide; microstructure
Issue Date: 2021
Citation: Journal of Materials Science: Materials in Electronics, 2021
Abstract: The paper describes the technology of obtaining and the results of the investi-gations of microstructure, XRD, SEM, main dielectric properties, electrical conductivity measurements and P-E hysteresis loops of Ba0.6Pb0.4TiO3/-graphene oxide composite (abbr. BPT/GO). In the final step of the technology, the samples have been sintered using the Spark Plasma Sintering (SPS) method. Diffraction patterns of the BPT/GO composite exhibit lines which can be related to perovskite structure. They also reveal additional lines that can be derived from the initial component oxides. Investigations of electrical conductivity suggest that the positive temperature coefficient of resistivity (PTCR) effect occurs at temperatures up to approximately 120 C. Dielectric hysteresis loops below 90 C are wide and typical for materials with rather high electrical con-ductivity. The hysteresis loop obtained at 120 C is more typical for ferro-electrics. The obtained material is interesting, nevertheless it is probably possible to find better conditions of obtaining and/or a better composition thereof.
DOI: 10.1007/s10854-021-05792-y
ISSN: 0957-4522
Appears in Collections:Artykuły (WNŚiT)

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