Ceramics PMN-PT-PFN for Multilayer Capacitors

Dariusz Bochenek; Ryszard Skulski; Paweł Wawrzała; Przemysław Niemiec

doi:10.4028/www.scientific.net/AST.77.47

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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 77Ceramics PMN-PT-PFN for Multilayer Capacitors

Ceramics PMN-PT-PFN for Multilayer Capacitors

Abstract:

We present the technology of the solid solution with formula (1-y)[(1-x)Pb(Mg_1/3Nb_2/3)O₃-xPbTiO₃]-yPb(Fe_1/2Nb_1/2)O₃ where x=0.25, y=0.1 i.e. 0.9(0.75PMN-0.25PT)-0.1PFN. The addition of PFN decreases the temperature of final sintering and as a result such composition is interesting material for multilayer ceramic capacitors (MLCC). The powder of 0.9(0.75PMN-0.25PT)-0.1PFN has been obtained in three steps. In first step we obtained MgNb₂O₆. In second step FeNbO₄ was obtained. In final third step the 0.9(0.75PMN-0.25PT)-0.1PFN was obtained from mixed powders MgNb₂O₆, FeNbO₄ and PbO and TiO₂. For obtained ceramics the following investigations have been made: XRD patterns, microstructure, EDS and main dielectric properties v.s. temperature. It has been stated that obtained ceramic powder is a good material for obtaining MLCC

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Periodical:

Advances in Science and Technology (Volume 77)

Pages:

47-52

DOI:

https://doi.org/10.4028/www.scientific.net/AST.77.47

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Online since:

September 2012

Authors:

Dariusz Bochenek, Ryszard Skulski, Paweł Wawrzała, Przemysław Niemiec

Keywords:

Capacitor, Ceramic, Dielectric, Ferroelectric, MLCC

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References

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