Accession Number : ADB046587


Title :   Self-Lubricating Composite Bearing Materials - Part 2: Corrosion Preventive Solid Lubrication of the ASALM Missile Hydraulic Actuator Bearings


Descriptive Note : Final rept. 1 Jun 1978-15 May 1979


Corporate Author : HUGHES AIRCRAFT CO CULVER CITY CA


Personal Author(s) : Gardos, M N ; Bohner, J J


Full Text : http://www.dtic.mil/dtic/tr/fulltext/u2/b046587.pdf


Report Date : Dec 1979


Pagination or Media Count : 179


Abstract : This report deals with the efforts expended in a 14-month program to develop a corrosion-resistant hard coating and a solid lubricant top coat. The objective of these coatings was to afford hydraulic control actuator roller bearings corrosion resistance for a 10-year storage life and to allow bearing operation for 1000 seconds with an applied load of 31,581 Newtons (7100 lbs) over a temperature range of -54 deg C to 316 deg C (-65 deg F to 600 deg F). By the use of exposure to aggressive chemical media, candidate ceramic hardcoat materials were evaluated, leading to the use of nichrome and titanium carbide in a two-layer structure. Similar exposure testing of sputtered lubricants led to the use of a molybdenum disulfide - antimony trioxide mixture. Additional solid lubricants based on the results of Part I of this report were used. Self-lubricating composite rollers were fabricated from stretched carbon fiber reinforced thermid 600 containing the Ga/In/WSe2 Westinghouse compact.


Descriptors :   *COMPOSITE MATERIALS , *SELF LUBRICATION , *ROLLER BEARINGS , *CORROSION RESISTANCE , CERAMIC COATINGS , GUIDED MISSILES , CARBON FIBERS , CARBIDES , CERAMIC MATERIALS , TITANIUM COMPOUNDS , OXIDES , WEAR , PROTECTIVE COATINGS , SOLID LUBRICANTS , HYDRAULIC ACTUATORS , FRICTION , MOLYBDENUM COMPOUNDS , SULFIDES , X RAY DIFFRACTION , LOADS(FORCES) , ANTIMONY COMPOUNDS , GRAPHITE


Subject Categories : Machinery and Tools


Distribution Statement : APPROVED FOR PUBLIC RELEASE