Structural and electrical properties of sintered zinc-titanate ceramics
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The aim of this work was an investigation of structural and electrical properties of sintered zinc-titanate ceramics obtained by mechanical activation. Mixtures of ZnO and TiO2 were mechanically activated in a planetary ball mill up to 90 min and sintered isothermally in air for 120 min at 1100 °C. The phase composition in the ZnO-TiO2 system after milling and sintering was analyzed using the XRD method. Microstructure analyses were performed using SEM. The results of electric resistivity, capacitance and loss tangent of the sintered samples were obtained. The existence of zinc-titanate as a dielectric was proved (εr = 12.5, Q = 386.1, tgδ = 0.0026, ρ = 1.02 Ωm). © 2007 Elsevier Ltd and Techna Group S.r.l.
Keywords:milling / electrical properties / sintering / X-ray methods
Source:Ceramics International, 2009, 35, 1, 35-37
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