Reduction of WO3 to W-metal by mechanochemical reaction

Junya Kano, Eiko Kobayashi, William Tongamp, Shoko Miyagi, Fumio Saito

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9 Citations (Scopus)


A new non-thermal route for reduction of tungsten oxide (WO3) to metallic tungsten (W) by a milling operation in ammonia (NH3) gas atmosphere in the presence of lithium nitride (Li3N) is proposed in this paper. A sample of WO3 was milled with Li3N under ammonia gas atmosphere in a planetary ball mill with ZrO2 balls to induce mechanochemical (MC) reaction between the starting samples. Characterization of milled product by X-ray diffraction (XRD) analysis confirms that W-metal could be obtained by the new mechanochemical (MC) process within 1 h.

Original languageEnglish
Pages (from-to)666-669
Number of pages4
JournalJournal of Alloys and Compounds
Issue number2
Publication statusPublished - 2009 Jul 8


  • Lithium nitride
  • Mechanochemical reaction
  • Milling
  • Tungsten
  • Tungsten oxide


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