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.

Date of Patent:
Dec. 24, 1991

Filed:

Nov. 19, 1990
Applicant:
Inventors:

Robert R Reeber, Chapel Hill, NC (US);

Wei K Chu, Houston, TX (US);

Ning Yu, Houston, TX (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; C23C / ;
U.S. Cl.
CPC ...
427 38 ; 427 531 ; 427 39 ; 20419216 ;
Abstract

A method of forming solid lubricant pockets in boron based and boron containing ceramic materials (i.e. boron carbide) by nitrogen ion implantation and laser annealing. By employing the present method said solid lubricant pockets may be formed in approximately the first 750 Angstroms of the surface and near surface regions of, for example, a polycrystalline boron carbide sample. Moreover, the present invention enables one to direct the formation of solid lubricants to specific areas on the boron based or boron containing ceramics to meet a specific need. The product of the present invention is a ceramic having a reduced coefficient of friction, greater durability, and reduced chipping and fracture.


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Reeber, Robert. (1991). Surface modification of boron carbide to form pockets of solid lubricant (U.S. Patent No. 5075130). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5075130

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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