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:
May. 25, 2004
Filed:
Apr. 17, 2003
Applicant:
Inventor:
Lewis Rosado, Centerville, OH (US);
Assignee:
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/02 ; B05D 1/36 ;
U.S. Cl.
CPC ...
B05D 3/02 ; B05D 1/36 ;
Abstract
Provided is a method to produce high-temperature lubricious glassy films on silicon-based ceramics. The method comprises the steps of (a) oxidizing a silicon-based component, (b) coating the oxidized component with an alkali metal compound, and (c) heating the component to a high temperature in a sulfur-rich oxidizing environment. The steady state sliding friction coefficient values obtained with this system in 600° C. air are similar to those obtained with liquid lubricants operating under boundary lubrication conditions at much lower temperatures.