Diffusion and Reactivity in Perovskite Materials of the Composition (Pb,La) (Zr,Ti)O3

  • K. J. de Vries
  • A. H. M. Hieltjes
  • A. J. Burggraaf


Problems are encountered in the synthesis of homogeneous and dense (lanthana doped) leadzirconate-titanate ceramics. Keizer et al. (1) and Buckner et al. (2) have mentioned inhomogeneities in the distribution of Zr4+- and Ti4+-ions among the available lattice sites. Keizer et al. (1) and Carl et al. (3) have reported the occurrence of a minimum in the ceramic grain size and density after firing at a lanthanum content of 2–4 at%. Haertling (4) and Snow (5) have observed that sinterreactivity is strongly promoted by adding a surplus of PbO to the reacting powder mixture. The dielectric and ferroelectric properties of these ceramics are dependent on micro structural parameters homogeneity, grain size and density. Hence a better understanding of the reactions that lead to different microstructures is important.


Diffusion Couple Homogeneity Range Bulk Diffusion Diffusion Depth Perovskite Material 
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Copyright information

© Springer Science+Business Media New York 1977

Authors and Affiliations

  • K. J. de Vries
    • 1
  • A. H. M. Hieltjes
    • 1
  • A. J. Burggraaf
    • 1
  1. 1.Dept. of Chemical Engineering Laboratory of Inorganic Chemistry and Materials ScienceTwente University of TechnologyEnschedeNetherlands

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