Fabrication and characterization of cordierite/zircon composites by reaction sintering: Formation mechanism of zircon

En Hai Sun, Takafumi Kusunose, Tohru Sekino, Koichi Niihara

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The formation mechanism of ZrSiO4 in the cordierite-ZrO2 system was studied in the temperature range of 1250° to 1400°C by X-ray diffraction analysis and discussed by analyzing experimental data using some reported reaction models. Nuclei growth models were found to describe the reaction well, and a satisfactory fit was obtained by applying the Avrami equation to estimate the reaction rate constant κ. Different values of the time exponent m were obtained at different temperatures: 0.32 at 1250°C, 0.34 at 1300°C, 0.39 at 1350°C, and 0.49 at 1400°C. The results indicate that there is a progressive change in reaction mechanism.

Original languageEnglish
Pages (from-to)1430-1434
Number of pages5
JournalJournal of the American Ceramic Society
Volume85
Issue number6
DOIs
Publication statusPublished - 2002 Jun

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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