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Friction and wear characteristics of a modified composite solid lubricant plasma spray coating
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | DellaCorte, C. Stanford, M. K. |
| Copyright Year | 2004 |
| Description | LCR304 is a solid lubricant coating composed of Ni-10Cr, Cr2O3, BaF2-CaF2 and Ag and developed for dimensional stability in high temperature air. This coating is a modification of PS304, which differs in that the Ni-Cr constituent contains 20wt% Cr. The tribological characteristics of LCR304 were evaluated by pin-on-disk and foil air bearing rig testing from 25 to 650 C and compared to previous test results with PS304. For both tests, the friction coefficient decreased as temperature increased from 25 to 650 C. Wear generally decreased with increasing temperature for all pin-on-disk tests. LCR304 coated components produced the least wear of Inconel X-750 counterface materials at 427 and 650 C. These results indicate that the LCR304 coating has potential as a replacement for PS304 in, for example, low cycle (minimum wear) applications where dimensional stability is imperative. |
| File Size | 823603 |
| Page Count | 5 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20050198850 |
| Archival Resource Key | ark:/13960/t9n34t69p |
| Language | English |
| Publisher Date | 2004-01-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Sprayed Coatings High Temperature Air Calcium Fluorides Inconel Trademark Coefficient of Friction Composite Materials Thermal Control Coatings Barium Fluorides Solid Lubricants Chromium Oxides Chromium High Temperature Tests Nickel Wear Tests Dimensional Stability Argon Plasma Spraying Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
