Advertisement

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

Abstract

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.

Keywords

Diffusion Couple Homogeneity Range Bulk Diffusion Diffusion Depth Perovskite Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    K. Keizer, E.H.J. Janssen, K.J. de Vries and A.J. Burggraaf, Mat. Res. Bull. 8 (1973) 533.CrossRefGoogle Scholar
  2. (2).
    D.A. Buckner and F.D. Wilcox, Ceram. Bull. 51 (1972) 218.Google Scholar
  3. (3).
    K. Carl and K.H. Härdtl, Ber. Deutsch. Ker. Ges. 47 (1970) 687.Google Scholar
  4. (4).
    G.H. Haertling and C.E. Land, J. Amer. Ceram. Soc. 54 (1971) 1.CrossRefGoogle Scholar
  5. (5).
    G.S. Snow, J. Amer. Ceram. Soc. 56 (1973) 9.Google Scholar
  6. (6).
    K.J. de Vries, K. Keizer, J. Bouwma and A.J. Burggraaf, Science of Ceramics 8, Cambridge U.K. (1975).Google Scholar
  7. (7).
    F.S. Ozdemir and R.J. Schwartz, Ceram. Bull. 51 (1972) 474.Google Scholar
  8. (8).
    J.W. DeFord and 0.W. Johnson, University of Utah, A.D. Report 787667.Google Scholar
  9. (9).
    J. Galy and A. Carpay, Phil. Mag. 29 (1974) 1207.CrossRefGoogle Scholar

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

Personalised recommendations