Diamond treatment

Details Diamond treatment Diamond treatment

1981-09-15

1983-08-16

Smith, Alfred E.

Radiant energy

Irradiation of objects or material

2504923, 423446, B01J 306

Patent

active

043993648

ABSTRACT:
A method of reducing the color of diamond of type 1b including the steps of exposing the diamond to irradiation capable of causing atomic displacements in the diamond, for example the irradiation may be electron bombardment of energy greater than 300 KeV, followed by heat treating the irradiated diamond at a temperature in the range 1600.degree. C. to 2200.degree. C. under a pressure at which the diamond is crystallographically stable at the temperature used.

REFERENCES:
patent: 2945793 (1960-07-01), Dugdale
patent: 2998365 (1961-08-01), Custers et al.
patent: 4124690 (1978-11-01), Strong et al.
patent: 4184079 (1980-01-01), Hudson et al.
Kittel, Introduction to Solid State Physics, Wiley Interscience, p. 37, (1957).

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