Effect of Fe2O3 crystallite size on its mechanochemical reaction with La2O3 to form LaFeO3

Qiwu Zhang, Fumio Saito

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

Fe2O3 powders with different crystalline sizes prepared by heating FeOOH at various temperatures were ground with La2O3 powder using a planetary ball mill to investigate the effect of crystallite size on mechanochemical synthesis of LaFeO3. Fe2O3 powder with smaller crystallite size obtained by heating at lower temperature reacts more easily with La2O3 than that with larger size. The mechanochemical reaction proceeds with an increase in grinding time. Specific surface area of the LaFeO3 powder synthesized has a large value of over 11 m2/g. The mechanochemical process can be also applied to synthesize other iron complex oxides with rare earth elements such as Pr, Nd and Sm.

Original languageEnglish
Pages (from-to)2287-2290
Number of pages4
JournalJournal of Materials Science
Volume36
Issue number9
DOIs
Publication statusPublished - 2001 May 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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