Self-propagating combustion synthesis of Pb1−x Sr x ZrO3 (0 ≤ x ≤ 0·20) ceramics and their dielectric properties

Lead strontium zirconate, Pb1−xSrxZrO3 (0 ≤ x ≤ 0·20) ceramics, were prepared by novel glycinenitrate self-propagating combustion technique. The crystal structure of the ceramics was investigated as a function of composition via X-ray diffraction (XRD). The XRD patterns obtained on these powders showed the formation of pure orthorhombic phase of lead strontium zirconate without impurities and all the compounds retained the orthorhombic structure. The samples were sintered at 900–1100°C for 2 h. It has been observed that the dielectric constant decreases with increase in strontium content (100 kHz). In all compositions, dielectric constant showed a peak at transition temperature and the magnitude of the peak was found to decrease with strontium doping level.