Accession Number : ADA294150

Title :   Surface Chemistry of Diamond Single Crystals.

Descriptive Note : Final rept. 15 Mar 92-14 Mar 95,

Corporate Author : PITTSBURGH UNIV PA

Personal Author(s) : Tates, John T., Jr

PDF Url : ADA294150

Report Date : 21 APR 1995

Pagination or Media Count : 21

Abstract : Diamond(100) was studied as a substrate for the adsorption of atomic hydrogen and fluorine. Both surface C-H bonds and surface C-F bonds are of importance in the tribological use of diamond film coating. A new and facile method for depositing surface fluorine on diamond has been developed. The method involves the photochemical dissociation of perfluoroalkyl iodide molecules depositing C(n)F(2n+1) groups on the diamond. These groups, upon thermal dissociation, produce surface C-F groups on the diamond. A patent application is being researched on this new method. jg

Descriptors :   *DIAMONDS, *SINGLE CRYSTALS, *SURFACE CHEMISTRY, PATENT APPLICATIONS, PHOTOCHEMICAL REACTIONS, ADSORPTION, FILMS, SUBSTRATES, CARBON, HYDROGEN, CHEMICAL BONDS, COATINGS, FLUORINE, HALIDES, DISSOCIATION, TRIBOLOGY, ALKYL RADICALS, ATOMIC STRUCTURE, IODIDES.

Subject Categories : Physical Chemistry
      Inorganic Chemistry
      Organic Chemistry
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE