Original Paper(Vol.55 No.8 pp.760-765)

Disintegration by Chlorine Gas of Baked Submicron Sized Diamond Powder

Hiroshi YAMANAKA, Katsumi KUMEKAWA, Shidzuka MORINO and Satoru HOSOMI

Abstract:A chlorine adsorption process was proved to be effective to disperse the diamond powder agglomerated in a baking process. The oxidation of no diamond carbon on the diamond surface was suppressed in this process and the agglomerates were broken down into constituent particles by cutting the bonds between the diamond particles. The chlorine adsorption process is also useful as an intermediate step for providing oxygen-containing hydrophilic group on the non-diamond surface layer of baked diamond particles.

Key Words:Submicron sized diamond, Baked diamond, Chlorine adsorption, Dispersion, Surface modification