Lubricants for ceramics at elevated temperatures
AssigneeAluminum Company of America
InventorsRobert W. Bruce, E. Erwin Klaus
Life of this patent
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Abstract
A method for reducing the coefficient of friction and wear at the interface of two ceramic surfaces at temperatures above approximately 600.degree. F. The method comprising the steps of: a) providing a first and second ceramic surface; b) providing a lubricant selected from the group consisting of p-dodecylphenol, C26 and organophosphorus compounds; and c) applying the lubricant to the interface of the first and second ceramic surfaces at temperatures above approximately 600.degree. F. to reduce the coefficient of friction at the interface.
Claims18
A method for lubricating the interface of two ceramic surfaces in frictional contact in mechanical systems that operate at temperatures above approximately 600.degree. F., said method comprising the steps of:
- providing a first and second ceramic surface;
- providing a lubricant selected from the group consisting of p-dodecylphenol, oxidized mineral oil and organophosphorus compounds having an average chain of carbon atoms less than or equal to twenty-one;
- applying said lubricant to the interface of said first and second ceramic surfaces at temperatures above approximately 600.degree. F.
A method for lubricating the interface of two ceramic surfaces in frictional contact in mechanical systems that operate at temperatures above approximately 1000.degree. F., said method comprising the steps of:
- providing a first and second ceramic surface;
- spraying a lubricant selected from the group consisting of p-dodecylphenol, oxidized mineral oil and organophosphorus compounds having an average chain of carbon atoms less than or equal to twenty-one at the interface of said first and second ceramic surfaces at temperatures above approximately 600.degree. F.;
- applying said lubricant to the interface of said first and second ceramic surfaces at temperatures above approximately 600.degree. F.
Dependencies are inferred from the claim text.