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Title: High temperature low friction surface coating

Abstract

A high temperature, low friction, flexible coating for metal surfaces which are subject to rubbing contact includes a mixture of three parts graphite and one part cadmium oxide, ball milled in water for four hours, then mixed with thirty percent by weight of sodium silicate in water solution and a few drops of wetting agent. The mixture is sprayed 12-15 microns thick onto an electro-etched metal surface and air dried for thirty minutes, then baked for two hours at 65.degree. C. to remove the water and wetting agent, and baked for an additional eight hours at about 150.degree. C. to produce the optimum bond with the metal surface. The coating is afterwards burnished to a thickness of about 7-10 microns.

Inventors:
 [1]
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  1. Watervliet, NY
Issue Date:
OSTI Identifier:
863680
Patent Number(s):
4227756
Assignee:
Mechanical Technology Incorporated (Latham, NY)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
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DOE Contract Number:  
NAS-3-19427
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
temperature; friction; surface; coating; flexible; metal; surfaces; subject; rubbing; contact; mixture; graphite; cadmium; oxide; ball; milled; water; hours; mixed; thirty; percent; weight; sodium; silicate; solution; drops; wetting; agent; sprayed; 12-15; microns; thick; electro-etched; air; dried; minutes; baked; 65; degree; remove; additional; eight; 150; produce; optimum; bond; afterwards; burnished; thickness; 7-10; surface coating; metal surface; metal surfaces; microns thick; wetting agent; water solution; air dried; sodium silicate; rubbing contact; cadmium oxide; /384/

Citation Formats

Bhushan, Bharat. High temperature low friction surface coating. United States: N. p., 1980. Web.
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Bhushan, Bharat. High temperature low friction surface coating. United States.
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Bhushan, Bharat. Tue . "High temperature low friction surface coating". United States. https://www.osti.gov/servlets/purl/863680.
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@article{osti_863680,
title = {High temperature low friction surface coating},
author = {Bhushan, Bharat},
abstractNote = {A high temperature, low friction, flexible coating for metal surfaces which are subject to rubbing contact includes a mixture of three parts graphite and one part cadmium oxide, ball milled in water for four hours, then mixed with thirty percent by weight of sodium silicate in water solution and a few drops of wetting agent. The mixture is sprayed 12-15 microns thick onto an electro-etched metal surface and air dried for thirty minutes, then baked for two hours at 65.degree. C. to remove the water and wetting agent, and baked for an additional eight hours at about 150.degree. C. to produce the optimum bond with the metal surface. The coating is afterwards burnished to a thickness of about 7-10 microns.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}
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