Preparation of GaN powder by mechanochemical reaction between Ga2O3 and Li3N

Junya Kano, Eiko Kobayashi, William Tongamp, Fumio Saito

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A new route for synthesizing gallium nitride (GaN) from gallium oxide (Ga2O3) and lithium nitride (Li3N) by milling is proposed in this paper. The milling was performed in a planetary ball mill with uni-size ZrO2 balls to induce mechanochemical reaction between the starting materials in order to prepare GaN powder. The formation of GaN was confirmed in XRD patterns, and the peak intensity of GaN becomes clearer when milled under ammonia (NH3) gas environment. In the proposed route, GaN powder could be prepared within 2 h by milling Ga2O3 and Li3N at a molar ratio of 1:2 and mill speeds around 300 rpm.

Original languageEnglish
Pages (from-to)337-339
Number of pages3
JournalJournal of Alloys and Compounds
Volume464
Issue number1-2
DOIs
Publication statusPublished - 2008 Sep 22

Keywords

  • Gallium nitride
  • Gallium oxide
  • Lithium nitride
  • Mechanochemical reaction
  • Milling
  • Planetary ball mill

ASJC Scopus subject areas

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

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