  In this work we have demonstrated the growth of nanocrystalline diamond on
boron nitride ceramic. We measured the zeta potential of the ceramics to select
the diamond seeds. Diamond was then grown on the seeded ceramics using a
microwave chemical vapour deposition system. A clear difference was found
between the samples which were seeded with nanodiamond and the ones not seeded
before growth. Raman spectroscopy confirmed the excellent quality of the
diamond film. Dielectric measurements showed an increase in the dielectric
constant of the material after diamond growth. The diamond was also doped with
boron to make it superconducting. The film had a transition temperature close
to 3.4K. Similar strategies can be applied for growth of diamond on other types
of ceramics.
