Method of vapor-phase synthesizing diamond

Details Method of vapor-phase synthesizing diamond Method of vapor-phase synthesizing diamond

1990-01-18

1991-12-24

Lewis, Michael

Plastic article or earthenware shaping or treating: apparatus

Means treating shaped work

In or on work confining surface

C01B 3106

Patent

active

050750968

ABSTRACT:
Disclosed is a method of vapor-phase synthesizing diamond comprising creating a reduction atmosphere by burning a combustible gas in a combustion-supporting gas, controlling the humidity by adding steam or liquid water drops to the combustion flame, and inserting a basic material into the synthesis flame. This method produces diamonds of the desired reproducibility and crystallinity, with an industrially-acceptable rate of film growth, while simultaneously ensuring the process stability necessary for long-duration synthesis.

REFERENCES:
patent: 3449168 (1969-06-01), Sederquist
patent: 3599610 (1971-08-01), Spector
patent: 4483836 (1984-11-01), Adadvov et al.
patent: 4522680 (1985-06-01), Ogawa
patent: 4767608 (1988-08-01), Matsumoto et al.
Applied Physcis Letters, vol. 51, No. 10, Sep. 7, 1987, pp. 737-739 American Institute of Physics, New York S. Matsumoto et al, "Synthesis of Diamond Films in a rf Induction Thermal Plasma", p. 737, Col. 2.

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