Accession Number : AD0163911
Title : Method for Preparing Metal Matrix Composites Containing Modified Polytetrafluoroethylene.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : Boes,David J.
Report Date : 18 JUL 1972
Pagination or Media Count : 3
Abstract : The patent describes a self-lubricating composite. Polytetrafluoroethylene, sold under the trademark Teflon, is modified before being blended with metal powder and formed into a composite. Modification is accomplished by heating the Teflon for 1 to 2 hours at 1,000-1,100F and then for 3 to 3.5 hours at 650 to 750F. Metal matrix composites containing modified Teflon as a filler are useful as retainer materials for bearings which are subjected to high temperature operating conditions.
Descriptors : (*LUBRICANTS, *COMPOSITE MATERIALS), (*PATENTS, LUBRICANTS), HALOCARBON PLASTICS, HEAT TREATMENT, SILVER, MOLYBDENUM COMPOUNDS, SULFIDES, BALL BEARINGS, WEAR RESISTANCE, SILVER ALLOYS, MERCURY ALLOYS
Subject Categories : Laminates and Composite Materials
Lubricants and Hydraulic Fluids
Distribution Statement : APPROVED FOR PUBLIC RELEASE