Homogeneous dispersion of gallium nitride nanoparticles in a boron nitride matrix by nitridation with urea

Takafumi Kusunose, Tohru Sekino, Yoichi Ando

Research output: Contribution to journalArticlepeer-review

Abstract

A Gallium Nitride (GaN) dispersed boron nitride (BN) nanocomposite powder was synthesized by heating a mixture of gallium nitrate, boric acid, and urea in a hydrogen atmosphere. Before heat treatment, crystalline phases of urea, boric acid, and gallium nitrate were recognized, but an amorphous material was produced by heat treatment at 400°C, and then was transformed into GaN and turbostratic BN (t-BN) by further heat treatment at 800°C. TEM obsevations of this composite powder revealed that single nanosized GaN particles were homogeneously dispersed in a BN matrix. Homogeneous dispersion of GaN nanoparticles was thought to be attained by simultaneously nitriding gallium nitrate and boric acid to GaN and BN with urea.

Original languageEnglish
Pages (from-to)4312-4316
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume10
Issue number7
DOIs
Publication statusPublished - 2010 Jul 1

Keywords

  • Boron Nitride
  • Gallium Nitride
  • Nanoparticle
  • Nitridation
  • Urea

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

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