Preparation of cordierite/ZrO2 nano-composite powders by a colloidal coating process

En Hai Sun, Takafumi Kusunose, Tohru Sekino, Tomohiko Adachi, Masashi Wada, Koichi Niihara

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Cordierite/ZrO2 nano-composite powders were prepared by a colloidal coating process. Cordierite particles are embedded within a continuous layer of fine amorphous ZrO2 that was provided by the colloidal processing after drying. Tetragonal ZrO2 was first formed at 650°C and monoclinic ZrO2 phase was identified at the calcination temperature of 800°C. After calcination at 850°C, crystallized ZrO 2 particles with the size from 10 nm to 30 nm homogeneously covered the surface of cordierite particles. Cordierite/ZrO2 nano-composite powders prepared by a colloidal coating process show better sinterability than that of cordierite/ZrO2 powder mixtures prepared by a conventional mixing method, and were sintered to a density of over 96% at a low temperature of 1300°C.

Original languageEnglish
Pages (from-to)92-97
Number of pages6
JournalJournal of the Ceramic Society of Japan
Volume110
Issue number1278
DOIs
Publication statusPublished - 2002 Feb

Keywords

  • Coating
  • Cordierite
  • Nano
  • Sinterability

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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