Accession Number : ADA190804

Title :   High Temperature Solid Lubrication by Catalytically Generated Carbon,

Corporate Author : RENSSELAER POLYTECHNIC INST TROY N Y DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Lauer, James L ; Bunting, Bruce G

PDF Url : ADA190804

Report Date : Jan 1987

Pagination or Media Count : 13

Abstract : The wear process in bearings generates a clean active surface. Carbon is known to form readily on catalytic surfaces through the reduction of carbon oxides or hydrocarbon. Carbon, through the adsorption of hydrocarbons, water vapor, or oxygen, becomes an effective lubricant. If these three phenomena can be made to work together, a new concept of high temperature lubrication would be available. This paper presents laboratory investigations towards the development of this concept. Carbon has been successfully produced through catalytic reduction of ethylene on a variety of metallic and ceramic surfaces containing nickel. this carbon has been shown to reduce friction at a sliding interface at elevated temperatures. Keywords: Tribochemistry, High-temperature solid lubrication, Chemically reactive gases, Pin-on-disc friction tests, Carbon film lubrication, Catalytic formation of lubricants.

Descriptors :   *CARBON, *CATALYTIC CRACKING, *CERAMIC MATERIALS, *LUBRICATION, *SOLID LUBRICANTS, ETHYLENE, FILMS, HYDROCARBONS, INTERFACES, LABORATORY TESTS, LUBRICANTS, NICKEL, OXIDES, OXYGEN, REACTIVE GASES, SURFACE ACTIVE SUBSTANCES, WATER VAPOR, ROLLER BEARINGS, SURFACE CHEMISTRY, WEAR RESISTANCE, NICKEL ALLOYS, CARBON FIBERS, METHANE, ETHYLENE, SYMPOSIA

Subject Categories : Lubricants and Hydraulic Fluids
      Ceramics, Refractories and Glass
      Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE