http://hdl.handle.net/20.500.12128/10585
Tytuł: | Fabrication and characterization of BST 60/40/PVDF ceramic-polymer composite |
Autor: | Osińska, Katarzyna Adamczyk, Małgorzata Dzik, Jolanta Bernard, H. Czekaj, Dionizy |
Słowa kluczowe: | BST; PVDF; ceramic-polymer composite; dielectric permittivity |
Data wydania: | 2012 |
Źródło: | "Archives of Metallurgy and Materials" Vol. 56 (4) (2011), s. 1083-1091 |
Abstrakt: | In this paper BST//PVDF composites with 0-3 connectivity were prepared from (Ba0:6Sr0:4)O3 (BST60/40) ceramic powder and polyvinylidene fluoride (PVDF) powder by a hot pressing method, for different concentration of the ceramic phase (cV ). Morphology of BST//PVDF composites was observed by transmission electron microscopy and scanning electron microscopy, whereas the crystalline structure was studied by the X-ray diffraction method. The temperature dependence of dielectric permittivity of BST//PVDF composites was measured in the frequency range of f =10kHz-1MHz. The split-post dielectric resonator (SPDR) was used for the measurements of the real and imaginary part of dielectric permittivity of BST//PVDF composites in the microwave frequency range of f =3-10GHz. It was found, that the dielectric properties of the ceramic-polymer composite for cV >20% change significantly for both small ( f =10kHz-1MHz) and high ( f =3-10GHz) frequencies. The abrupt increase in permittivity may indicate an excess of the percolation threshold, so the ceramic-polymer composite for the concentrations of the active ceramic phase cV >20% cannot be indexed as composites with 0-3 connectivity. |
URI: | http://hdl.handle.net/20.500.12128/10585 |
DOI: | 10.2478/v10172-011-0121-x |
ISSN: | 1733-3490 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
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Osinska_Adamczyk_Fabrication_and_characterization_of_BST.pdf | 3,71 MB | Adobe PDF | Przejrzyj / Otwórz |
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