Paper Title:
Influence of Atmospheric Annealing on the Conductivity of Mn-Doped PZT Ceramics
  Abstract

Conductivity measurements were carried out on Mn-doped PZT ceramics in order to investigate the changes in defect chemistry with annealing, by identifying the charge carriers such as lead or oxygen vacancies. PZT compositions were prepared by sol-gel method in rhombohedral region Pb(Zr0.56 Ti0.44)O3 with Mn contents 0.4, 0.8, 1.5 and 2 wt.%. Nano-sized powder (~21nm) was obtained after calcination and bulk density values of >98% were achieved upon sintering. It was found that nitrogen annealing reduced the electrical conductivity strongly as compared to oxygen and air annealing and the possible charge carriers were single ionised oxygen vacancies along with and vacancies.

  Info
Periodical
Edited by
Shaheed Khan, Iftikhar us Salam and Karim Ahmed
Pages
415-421
DOI
10.4028/www.scientific.net/KEM.442.415
Citation
M. Shuaib, D.A. Hall, "Influence of Atmospheric Annealing on the Conductivity of Mn-Doped PZT Ceramics", Key Engineering Materials, Vol. 442, pp. 415-421, 2010
Online since
June 2010
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