Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 464, Issue 1-2, Pages 337-339Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2007.09.120
Keywords
gallium nitride; mechanochemical reaction; gallium oxides; lithium nitrides; milling; planetary ball mill
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Funding
- Japan Society for the Promotion of Science (JSPS)
- Ministry of Education, Science, Sports and Culture of Japan
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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 Ga2O(3) and Li3N at a molar ratio of 1:2 and mill speeds around 300 rpm. (C) 2007 Published by Elsevier B.V.
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