Furthermore, almost all the methods for synthetic boron-doped diamond single crystal require strict conditions and involve high cost; therefore, it is hard to obtain high quality boron-doped diamond single crystal under existing industrial conditions.

Study on the composition and structure of covering metal film of boron-doped diamond;

Boride phase-structure in metallic film and the formation of boron-doped diamond single crystal;

Effect of multiple boron sources on boron-doped diamond single crystals

In this paper,B-doped polycrystalline diamond was prepared at high pressure and high temperature using B-doped diamond powder and cobalt alloy.

This paper presented a new method for synthesising B-doped diamond using graphite intercalation compounds (GICs).

Optics microscope and X-ray diffraction(XRD) were used to investigate the solvent metal covering on diamond single crystal synthesized by iron-based alloy catalyst and graphite under different synthesized technics at high temperature and high pressure(HTHP).

Scanning electron microscope(SEM) and Energy Dispersive Spectroscope(EDS) were used to investigate the effects of procedure parameters on the structures and composition of the metallic film covering on diamond single crystal from a graphite-Ni70Mn25Co5 system under high temperature and high pressure(HTHP).

The development of study on synthesizing diamond single crystal,thin film and nanocrystal with un-graphite materials is summarized.

The artificial synthesis and applications of the diamond powders,monocrystalline diamond,diamond film and polycrystalline diamond have been summarized.