NDLI: Tribology and microstructure of ps212 with a cr2o3 seal coat

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Tribology and microstructure of ps212 with a cr2o3 seal coat

Content Provider	NASA Technical Reports Server (NTRS)
Author	Korenyi-Both Sr., Andras Dellacorte, Christopher Benoy, Patricia A. Sliney, Harold E.
Copyright Year	1994
Description	PS212 is a plasma sprayed metal bonding chrome carbide coating with solid lubricant additives which has lubricating properties at temperatures up to about 900 deg C. The coating is diamond ground to achieve an acceptable tribological surface. But, as with many plasma spray coatings, PS212 is not fully-dense. In this study, a chromium oxide base seal coating is used in an attempt to seal any porosity that is open to the surface of the PS212 coating, and to study the effect of the sealant on the tribological properties of PS212. The results indicate that the seal coating reduces friction and wear when it is applied and then diamond ground leaving a thin layer of seal coating which fills in the surface pits of the PS212 coating.
File Size	8441578
Page Count	17
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19950012033
Archival Resource Key	ark:/13960/t3227tz21
Language	English
Publisher Date	1994-12-01
Access Restriction	Open
Subject Keyword	Sprayed Coatings Sealers Scanning Electron Microscopy Chromium Carbides Coefficient of Friction Refractory Materials Friction Solid Lubricants Chromium Oxides Wear Porosity Wear Tests Plasma Spraying Microstructure Tribology Self Lubricating Materials Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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