Abstract Detail

Abstract

This work obtained a multicomponent PZT-type material doped with manganese Mn, antimony Sb, europium Eu, and tungsten W using the classical sintering method (pressureless sintering). Three compositions with the general formula Pb(Zr0.49Ti0.51)0.94Mn0.021Sb0.016EuxW0.018-x/2O3 were tested and analysed, with a variable amount of europium Eu (from 0.008 to 0.012) and tungsten (from 0.014 to 0.012) admixture. The component powders were mixed in a planetary ball mill for 24 h in the technological process. The powder mixture was synthesized by calcination at 850°C for 4 h, while the ceramic samples were sintered by the free sintering method at 1150°C for 2 hours. XRD studies have shown that the obtained multicomponent PZT-type materials have the structure of a tetragonal system with a point group of P4mm. The microstructure of ceramic samples is characterized by fine and properly crystallized grains with sharp and clearly visible grain boundaries. Dielectric studies of PZT-type materials have revealed high values of permittivity with simultaneously low dielectric loss values and low electrical conductivity, which are important parameters for microelectronic applications.

Biography

Dr Dagmara Brzezińska is currently employed as an assistant professor at the University of Silesia in Katowice (Poland) in a research group at the Institute of Materials Science and Engineering dealing with the production and research of ceramic materials and multiferroic composite materials with functional properties for microelectronic and micromechatronic applications. Research interests: ferroelectric, dielectric and piezoelectric materials, multiferroics, multiferroic ceramic composites, functional materials. No. of published articles and Journals information: Currently in the SCOPUS database there are 25 scientific articles (i.e., Journal of Alloys and Compounds, Materials, Journal of Electroceramics, Journal of Materials Science: Materials in Electronics, Ferroelectrics,International Journal of Applied Ceramic Technology, Mechanical Systems and Signal Processing, Applied Physics A-Materials Science & Processing, Archives of Metallurgy and Materials, Integrated Ferroelectrics).