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Title: The Pb(Fe1/2Nb1/2)O3 ferroelectromagnetic ceramics in a view of possibilities to be used for electric transducers
Authors: Bochenek, Dariusz
Zachariasz, Radosław
Keywords: ceramika ferroelektromagnetyczna; przetworniki elektryczne; żelazo; stopy żelaza; przejścia fazowe; punkt Curie; materiały; właściwości magnetyczne
Issue Date: 2008
Citation: Acta Physica Polonica A, Vol. 114, nr 6A (2008), s. 15-20
Abstract: The PbFe1=2Nb1=2O3 (PFN) ceramics can be obtained by a lot of ways. There are a lot of methods and techniques to synthesize the PFN powder such as: reactions in the solid phase by one-stage or two-stage synthesizing method (the columbite method), molten salt synthesis, sol-gel, co-precipitation method and sintering of compacts from a loose mixture of powders. Each of them requires accuracy and precision to conduct a technological process, aiming at obtaining a product with the optimum parameters. In the work PFN specimens were obtained by one-stage synthesis methods using two different powder synthesizing techniques: by calcining (sintering of a loose mixture of the PFN powder) and as a result of sintering of pressed compacts from the PFN powder mixture at high temperature (pressing). The obtained specimens were subjected to X-ray and micro-structural examinations and tests of internal friction and dielectric properties. The tests showed that the ceramics obtained by the powder calcining method has better applied properties.
ISSN: 0587-4246
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