Synthesis and Characterization of h-BCN Nanocrystallite under High-Pressure and High-Temperature

h-BCN compounds were synthesized with C3H6N6 and B2O3 as raw materials, combined with heat treatment, high pressure and high temperature. An amorphous BCN precursor was prepared at 1 100 K under vacuum. Annealed for 30 min, at 1 500 K under 5.0 GPa, the amorphous BCN precursor crystallizes into hexagonal BCN compound with lattice constants of a=0.250 5 nm, c=0.665 9 nm determined by using the reflex module combined in the Materials Studio program analysis. The shape and SAD of sample also approved that the sample was h-BCN crystal by TEM analysis. The grain size about was 200 nm. XPS analysis was applied for the sample. The results confirmed bending energy of CC, CN, CB, NB. It indicated atom level chemical combination of BCN. The composition and content of the sample were analyzed by EDX.