The aim of the present work was to investigate the in-oxygen-hydrogen-
flame synthesis process of BN using a new source of boron and nitrogen
, namely the borane-ammonia compound BH3.NH3, and placing the flame in
a strong electric field (6 x 10(5) V m(-1)). The metastable form of B
N, E-BN, forms as result of an in-flame reaction. The yield of the E-B
N synthesis is strongly affected by the presence of the electric field
.