National Research Development Corporation

Other

Richard S Nelson

David J Mazey

John A Hudson

A method of growing a diamond crystal which comprises bombarding the diamond with a flux of carbon ions of sufficient energy to penetrate the diamond crystal and cause crystal growth which is at least predominantly internal, the temperature of the crystal being at least 400.degree. C. and less than the graphitization temperature, such that the diamond crystal structure is maintained during growth.

Growth of synthetic diamonds having altered electrical conductivity

A method of growing a diamond crystal which comprises bombarding the diamond with a flux of carbon ions of sufficient energy to penetrate the diamond crystal and cause crystal growth which is at least predominantly internal, the temperature of the crystal being at least 400.degree. C. and less than the graphitisation temperature, such that the diamond crystal structure is maintained during growth.

Growth of synthetic diamonds

A diamond is toughened by bombarding it at elevated temperature with ions such as protons which form a dislocation network in it, inhibiting microcleavage.

Growing community of inventors

Reading, United Kingdom

Richard S Nelson