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Self-lubricating plasma-sprayed composites for sliding contact bearings to 900 c
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Sliney, H. E. |
| Copyright Year | 1974 |
| Description | Plasma-sprayed composites which have good oxidation-resistance and self-lubricating characteristics to 900 C were developed. The composites are a Nichrome matrix containing dispersed glass for oxidation protection and calcium fluoride for lubrication. They are applied to bearing surfaces in layers about 0.050 cm thick by plasma-spraying; the layers are then machined to a thickness of 0.025 cm. Oscillating bearing tests were performed in air to 900 C at unit radial loads up to 3.5 times 10 to the 7th power Newtons per square meter (5000 psi) and a thrust load of 1960 Newtons (440 lb). Bearings with a composite liner in the bore were in good condition after over 50,000 oscillating cycles accumulated during repeated bearing temperature cycles between 25 and 900 C. |
| File Size | 3128039 |
| Page Count | 27 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740008033 |
| Archival Resource Key | ark:/13960/t5dc2t12s |
| Language | English |
| Publisher Date | 1974-02-01 |
| Access Restriction | Open |
| Subject Keyword | Machine Elements And Processes Friction Reduction High Temperature Lubricants Antifriction Bearings Airframes Materials Tests Space Shuttles Sliding Contact Self Lubrication Product Development High Temperature Environments 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 |
