caa a22 4500 463234707 CHVBK 20180405153253.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10853-006-0824-y doi (NATIONALLICENCE)springer-10.1007/s10853-006-0824-y Dielectric and impedance study of lead-free ceramic: (Na0.5Bi0.5)ZrO3 [Elektronische Daten] [Lily,, K. Kumari, K. Prasad, K. Yadav] Polycrystalline sample of (Na0.5Bi0.5)ZrO3 was prepared using a high-temperature solid-state reaction technique. XRD analysis indicated the formation of a single-phase orthorhombic structure. Dielectric study revealed the diffuse phase transition at 425°C. AC impedance plots were used as tools to analyse the electrical behaviour of the sample as a function of frequency at different temperatures. The ac impedance studies revealed the presence of grain boundary effect at and above 350°C. Complex impedance analysis indicated non-Debye type dielectric relaxation and negative temperature coefficient of resistance (NTCR) character of (Na0.5Bi0.5)ZrO3. AC conductivity data were used to evaluate the density of states at Fermi level and activation energy of the compound. DC electrical and thermal conductivities of grain and grain boundary have been assessed. Springer Science+Business Media, LLC, 2007 Lily, Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, 812 007, Bhagalpur, India aut Kumari K. Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, 812 007, Bhagalpur, India aut Prasad K. Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, 812 007, Bhagalpur, India aut Yadav K. Department of Physics, Indian Institute of Technology, 247 667, Roorkee, India aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/15(2007-08-01), 6252-6259 0022-2461 42:15<6252 2007 42 10853 https://doi.org/10.1007/s10853-006-0824-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0824-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lily Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, 812 007, Bhagalpur, India aut NATIONALLICENCE 700 1- Kumari K. Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, 812 007, Bhagalpur, India aut NATIONALLICENCE 700 1- Prasad K. Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, 812 007, Bhagalpur, India aut NATIONALLICENCE 700 1- Yadav K. Department of Physics, Indian Institute of Technology, 247 667, Roorkee, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/15(2007-08-01), 6252-6259 0022-2461 42:15<6252 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer