Effect of cadmium doping on electrical properties of lead nickel niobate–lead zirconate titanate [Pb1.0(Ni0.167Nb0.333Zr0.155Ti0.345)O3] ceramics. Issue 10 (December 2015)

• Record Type: Journal Article
• Authors: Gupta, Rashmi; Das, Sayantani; Sinha, T.P.; Bamzai, K.K.
• Is Part Of: Ceramics international. Volume 41:Issue 10(2015)Part A
• Page Start: 13241
• Page End: 13249
• Publication Date: 2015-12
• Subjects: A. Powders: solid state reaction -- C. Electrical properties -- C. Impedance -- D. Perovskites; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.07.103
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Lead nickel niobate–lead zirconate titanate (PNNZT) and cadmium doped (CdPNNZT) with general composition Pb1.0 (Ni0.167 Nb0.333 Zr0.155 Ti0.345 )O3 (PNNZT), Pb0.98 Cd0.02 (Ni0.167 Nb0.333 Zr0.155 Ti0.345 )O3 (CdPNNZT) respectively were prepared by conventional solid state reaction. Microstructural and compositional analyses have been carried out by X-ray diffraction and scanning electron microscopy. With cadmium doping there is an increase in both the perovskite phase and in grain size. The effect of cadmium doping on the structural and dielectric properties has been investigated. An increase in the dielectric constant was observed with cadmium doping in PNNZT. Complex impedance analysis suggests poly-dispersive non-Debye type relaxation to occur in the material. The frequency dependence of AC conductivity obeys the universal double power law. The value of activation energy depends on increase in frequency as well as on cadmium doping.