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United States Patent 5,209,916
GruenMay 11, 1993

Conversion of fullerenes to diamond

Inventors: Gruen; Dieter M. (1324 59th St., Downers Grove, IL 60515).
Appl. No.: 797,590
Filed: Nov. 25, 1991

Intl. Cl.:C01B 31/06;
U.S. Cl.:423/446.; 156/DIG.68;
Field of Search:37;38;249;460

References Cited

U.S. Patent Documents
4,629,631Dec., 1986Dearnaley 427/ 38

Other References

Primary Examiner: Straub; Gary P.
Assistant Examiner: Kalinchak; Stephen G.


A method of forming synthetic diamond on a substrate is disclosed. The method involves providing a substrate surface covered with a fullerene or diamond coating, positioning a fullerene in an ionization source, creating a fullerene vapor, ionizing fullerene molecules, accelerating the fullerene ions to energies above 250 eV to form a fullerene ion beam, impinging the fullerene ion beam on the substrate surface and continuing these steps to obtain a diamond thickness on the substrate.

4 Claims, No Drawings

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