Formation of metastable wurtzite phase boron nitride by emulsion detonation synthesis

Metin Örnek, Chawon Hwang, Kelvin Y. Xie, Silvio Pratas, João Calado, Alan Burgess, Vladislav Domnich, Kevin J. Hemker, Richard A. Haber

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Emulsion detonation synthesis (EDS) is a newly developed process to synthesize nano-sized ceramic powders based on the detonation of 2 water-in-oil emulsions. The process provides high pressure and temperature along with rapid quenching. In this work, we report the formation of wurtzite phase BN (w-BN) for the first time by EDS process, using hexagonal BN (h-BN) as the precursor. Characterization studies demonstrated the formation of w-BN with sizes varying from nanometer to micrometer scale either embedded in or grown from h-BN matrix. These findings provide a new avenue to synthesize metastable and superhard BN phases.

Original languageEnglish (US)
Pages (from-to)3276-3281
Number of pages6
JournalJournal of the American Ceramic Society
Volume101
Issue number8
DOIs
StatePublished - Aug 2018

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Keywords

  • Wurtzite phase boron nitride
  • electron energy-loss spectroscopy
  • emulsion detonation synthesis
  • hexagonal phase boron nitride
  • transmission electron microscopy

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