A thermoanalytical study of the metal nitrate-edta precursors for lead zirconate titanate ceramic powders

H. W. Wang, D. A. Hall, F. R. Sale

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Lead zirconate titanate (PZT) ceramic powder has been synthesized from metal nitrate solutions using the EDTA-gel method with different nitric acid/EDTA ratios. It was found that the thermal decomposition of the precursor was strongly affected by the nitric acid/EDTA ratio, the amount of sample, the atmosphere, and the heating rate. Crystallization of the perovskite PZT phase initiated at external temperatures as low as 250°C, as a result of the exothermic decomposition reaction of the nitrate-EDTA complexes. Possible reaction schemes are suggested and discussed to describe the thermal decomposition of PZT-EDTA precursors under different experimental conditions. © 1994 Wiley Heyden Ltd, Chichester and Akadémiai Kiadó.
    Original languageEnglish
    Pages (from-to)605-620
    Number of pages15
    JournalJournal of Thermal Analysis
    Volume41
    Issue number2-3
    DOIs
    Publication statusPublished - Feb 1994

    Keywords

    • ceramics

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