Effects of aging on nanocrystalline anatase-to-rutile phase transformation kinetics

Hsing I. Hsiang, Shih Chung Lin

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

The effects of aging on the kinetics for nanocrystalline anatase-to-rutile phase transformation were investigated. The agglomeration and crystallite sizes for TiO2 gels decreased with increasing aging treatment. For unaged samples, the agglomeration number was high, so that there are a larger number of anatase crystallites and crystallite-crystallite anatase contacts in each cluster. This promotes interfacial nucleation. Therefore, the activation energy of nucleation calculated for unaged samples was smaller than that for those found for the aged ones.

Original languageEnglish
Pages (from-to)557-561
Number of pages5
JournalCeramics International
Volume34
Issue number3
DOIs
Publication statusPublished - 2008 Apr 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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