X-ray diffraction and raman spectroscopy studies on calcium modified PZT (Pb(1-x)CaxZr0.52Ti0.48O3) ceramics prepared via solid state reaction method and sol-gel technique- a comparative study
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Pb(1-x)CaxZr0.52Ti0.48O3 bulk ceramic compositions where x=0-0.1 in steps of 0.02 are prepared by solid state reaction methodand sol-gel technique. A comparative study on the samples is conducted using XRD and Raman Spectroscopy in order to seethe effect of processing conditions. XRD peaks are indexed as per monoclinic phase. In both the series of samples, volumeshrinkage of the unit cell is observed in calcium modified samples when compared with unmodified samples. It is interestingto note that the samples derived from solid state reaction exhibit pseudo tetragonal structure while sol-gel derived samplesshow pseudo rhombohedral structure of their monoclinic unit cell. Similar inference has been made via Raman spectroscopystudies on the studied ceramic compositions prepared via two methods. Raman spectroscopy also reveals the possibility thatcalcium substitutes for lead.
Abstract
Pb(1-x)CaxZr0.52Ti0.48O3 bulk ceramic compositions where x=0-0.1 in steps of 0.02 are prepared by solid state reaction methodand sol-gel technique. A comparative study on the samples is conducted using XRD and Raman Spectroscopy in order to seethe effect of processing conditions. XRD peaks are indexed as per monoclinic phase. In both the series of samples, volumeshrinkage of the unit cell is observed in calcium modified samples when compared with unmodified samples. It is interestingto note that the samples derived from solid state reaction exhibit pseudo tetragonal structure while sol-gel derived samplesshow pseudo rhombohedral structure of their monoclinic unit cell. Similar inference has been made via Raman spectroscopystudies on the studied ceramic compositions prepared via two methods. Raman spectroscopy also reveals the possibility thatcalcium substitutes for lead.
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