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Journal of Materials Science

, Volume 28, Issue 19, pp 5179–5183 | Cite as

Anomalous dilatation-temperature curves of PZT-ZrO2 composites

  • B. Malič
  • M. Kosec
  • T. Kosmač
Papers
  • 37 Downloads

Abstract

The dilatation-temperature curves of the PZT-ZrO2 composites, containing 1.3–13.2 vol% ZrO2 were studied. The course of martensitic transformation (MT) of dispersed ZrO2 particles in the PZT matrix was followed. Upon cooling, a spontaneous microcrack formation occurred during the MT from tetragonal to monoclinic crystal phase of ZrO2. The phenomenon of intensive shrinkage above 800 °C upon heating is explained as a process of microcrack healing in the presence of the PbO-rich liquid phase.

Keywords

Polymer Shrinkage Liquid Phase Martensitic Transformation Crystal Phase 
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.

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Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • B. Malič
    • 1
  • M. Kosec
    • 1
  • T. Kosmač
    • 1
  1. 1.Jozef Stefan InstituteLjubljanaSlovenia

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