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Title: Bearing assembly and the like for use in corrosive and non-corrosive atmospheres

Abstract

This invention relates to a novel machine element characterized by mutually rubbing surfaces which are composed of dissimilar materials having high hardness, a low coefficient of friction, and resistance to corrosion by halogen-containing atmospheres. As exemplified by the preferred embodiment for use in gaseous UF.sub.6, the rubbing surfaces are chemically deposited nickel and anodized aluminum. These surfaces permit jam-free operation despite long-term exposure to UF.sub.6. Preferably, both surfaces have a hardness of at least about 500 HV.sub.100 on the Vickers hardness scale, and preferably the anodized-aluminum surface is of a type having comparatively little tendency to sorb uranium hexafluoride.

Inventors:
 [1];  [2];  [3]
  1. Knoxville, TN
  2. Kingston, TN
  3. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
863399
Patent Number(s):
4162813
Assignee:
United States of America as repesented by United States (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
bearing; assembly; corrosive; non-corrosive; atmospheres; relates; novel; machine; element; characterized; mutually; rubbing; surfaces; composed; dissimilar; materials; hardness; coefficient; friction; resistance; corrosion; halogen-containing; exemplified; preferred; embodiment; gaseous; chemically; deposited; nickel; anodized; aluminum; permit; jam-free; operation; despite; long-term; exposure; preferably; 500; hv; 100; vickers; scale; anodized-aluminum; surface; type; comparatively; tendency; sorb; uranium; hexafluoride; dissimilar materials; bearing assembly; similar material; preferred embodiment; uranium hexafluoride; chemically deposited; containing atmosphere; similar materials; long-term exposure; deposited nickel; /384/

Citation Formats

Mashburn, Douglas N, Woodall, Harold C, and Wright, Ralph R. Bearing assembly and the like for use in corrosive and non-corrosive atmospheres. United States: N. p., 1979. Web.
Mashburn, Douglas N, Woodall, Harold C, & Wright, Ralph R. Bearing assembly and the like for use in corrosive and non-corrosive atmospheres. United States.
Mashburn, Douglas N, Woodall, Harold C, and Wright, Ralph R. Mon . "Bearing assembly and the like for use in corrosive and non-corrosive atmospheres". United States. https://www.osti.gov/servlets/purl/863399.
@article{osti_863399,
title = {Bearing assembly and the like for use in corrosive and non-corrosive atmospheres},
author = {Mashburn, Douglas N and Woodall, Harold C and Wright, Ralph R},
abstractNote = {This invention relates to a novel machine element characterized by mutually rubbing surfaces which are composed of dissimilar materials having high hardness, a low coefficient of friction, and resistance to corrosion by halogen-containing atmospheres. As exemplified by the preferred embodiment for use in gaseous UF.sub.6, the rubbing surfaces are chemically deposited nickel and anodized aluminum. These surfaces permit jam-free operation despite long-term exposure to UF.sub.6. Preferably, both surfaces have a hardness of at least about 500 HV.sub.100 on the Vickers hardness scale, and preferably the anodized-aluminum surface is of a type having comparatively little tendency to sorb uranium hexafluoride.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

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