Method of making carbide/fluoride/silver composites

US5034187A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Harold E. Sliney · Parma, US
• Christopher DellaCorte · Medina, US

Key dates

• Filing date: Aug 23, 1990
• Grant date: Jul 23, 1991
• Expiry date: Aug 23, 2010

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2206/80
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A composition containing 30 to 70% chromium carbide, 5 to 20% soft noble metal, 5 to 20% metal fluorides, and 20 to 60% metal binder is used in a powdered metallurgy process for the production of self-lubricating components, such as bearings. The use of the material allows the self-lubricating bearing to maintain its low friction properties over an extended range of operating temperatures.