Abstract
The effect of the initial chemical reagents on the synthesis and sintering of lead zirconate-titanate has been investigated. The initial components underwent preliminary mechanical activation in a ball planetary-centrifugal mill. The initial components were titanium oxides TiO2 as rutile and anatase and TiO as nanosized powder, monoclinic zirconium oxide ZrO2, lead oxides as orthorhombic PbO and tetragonal PbO, Pb3O4, PbO2 as well as pure metals, i.e., zirconium and titanium. The possibility to obtain lead zirconate-titanate as early as during mechanical activation of samples was demonstrated. In some systems, cubic lead oxide Pb2O is formed during mechanical activation; then it disappears completely at annealing at 400°C. Changes in the structure and chemical composition of samples during annealing were investigated. The final formation of the lead zirconate-titanate structure occurs at the annealing of samples in the temperature range 1000°C to 1100°C depending on the initial components. The formation of nanodispersed structure with the grain size 10 to 40 nm was demonstrated by X-ray diffraction and transmission electron microscope (TEM).
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call