Crystallization of ceramic pigment CoAl2O4 nanocrystals from Co-Al metal organic precursor

Woo Seok Cho, Masato Kakihana

Research output: Contribution to journalArticlepeer-review

95 Citations (Scopus)

Abstract

We synthesized ceramic pigment CoAl2O4 nanocrystals by a polymerized complex technique. Cobalt nitrate, aluminum nitrate, citric acid, and ethylene glycol were used as precursor materials. The formation of pure crystallized CoAl2O4 nanocrystals occurred when the precursor was heat-treated at 350°C in air for 2 h. We propose a model for CoAl2O4 formation from the polymeric precursor. The model contains a series of steps such as the transformation of the precursor to amorphous cobalt aluminate, three-dimensional nucleation and growth, and solid-state reaction.

Original languageEnglish
Pages (from-to)87-90
Number of pages4
JournalJournal of Alloys and Compounds
Volume287
Issue number1-2
DOIs
Publication statusPublished - 1999 Jun 1
Externally publishedYes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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