Formation of metastable wurtzite phase boron nitride by emulsion detonation synthesis
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 02, 2018
- Source ID
- 10.1111/jace.15560
Entities
People
- Alan Burgess
- Chawon Hwang
- João Calado
- Kelvin Y. Xie
- Kevin J. Hemker
- Metin Örnek
- Richard A Haber
- Silvio Pratas
- Vladislav Domnich
Organizations
- Defense Advanced Research Projects Agency
- Johns Hopkins University
- National Science Foundation
- Office of Naval Research
- Rutgers University