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Formation of metastable wurtzite phase boron nitride by emulsion detonation synthesis
Author(s) -
Örnek Metin,
Hwang Chawon,
Xie Kelvin Y.,
Pratas Silvio,
Calado João,
Burgess Alan,
Domnich Vladislav,
Hemker Kevin J.,
Haber Richard A.
Publication year - 2018
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.15560
Subject(s) - materials science , detonation , wurtzite crystal structure , boron nitride , metastability , chemical engineering , emulsion , phase (matter) , ceramic , nanometre , nitride , boron , nanotechnology , composite material , metallurgy , chemistry , explosive material , organic chemistry , layer (electronics) , zinc , engineering
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.
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