The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 1998
Filed:
Jun. 06, 1995
North Carolina State University, Raleigh, NC (US);
Abstract
A method for making an oriented diamond film includes the steps of saturating a surface region of a transition metal substrate, capable of dissolving carbon, with carbon and hydrogen; forming oriented diamond nuclei on the saturated surface region of the substrate; and growing diamond on the oriented diamond nuclei to form the oriented diamond film. It is theorized that the saturation forms transition metal-carbon-hydrogen surface states (Metal.sub.x --C.sub.y --H.sub.z, where x+y+z=1) on the transition metal substrate while suppressing formation of graphite. Diamond may then be deposited onto the oriented diamond nuclei by CVD techniques to thereby form an oriented diamond film on the nondiamond substrate. The nondiamond substrate is preferably a single crystal transition metal capable of dissolving carbon. The transition metal is preferably selected from the group consisting of nickel, cobalt, chromium, magnesium, iron, and alloys thereof. Structures produced by the method are also disclosed and include an oriented diamond film on a nondiamond transition metal substrate.