Loading...
Please wait, while we are loading the content...
Similar Documents
Tribological and mechanical comparison of sintered and hipped pm212: high temperature self-lubricating composites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dellacorte, Christopher Bogdanski, Michael S. Sliney, Harold E. |
| Copyright Year | 1992 |
| Description | Selected tribological, mechanical and thermophysical properties of two versions of PM212 (sintered and hot isostatically pressed, HIPped) are compared. PM212, a high temperature self-lubricating composite, contains 70 wt percent metal bonded chromium carbide, 15 wt percent CaF2/BaF2 eutectic and 15 wt percent silver. PM212 in the sintered form is about 80 percent dense and has previously been shown to have good tribological properties from room temperature to 850 C. Tribological results of a fully densified, HIPped version of PM212 are given. They are compared to sintered PM212. In addition, selected mechanical and thermophysical properties of both types of PM212 are discussed and related to the tribological similarities and differences between the two PM212 composites. In general, both composites display similar friction and wear properties. However, the fully dense PM212 HIPped composite exhibits slight lower friction and wear than sintered PM212. This may be attributed to its generally higher strength properties. The sintered version displays stable wear properties over a wide load range indicating its promise for use in a variety of applications. Based upon their properties, both the sintered and HIPped PM212 have potential as bearing and seal materials for advanced high temperature applications. |
| File Size | 974337 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920005910 |
| Archival Resource Key | ark:/13960/t6d26v21v |
| Language | English |
| Publisher Date | 1992-01-01 |
| Access Restriction | Open |
| Subject Keyword | Stability Chromium Carbides High Temperature Silver Hot Pressing Analogies Friction Sintering Eutectics Wear Lubrication High Strength Thermophysical Properties Room Temperature Loads Forces Tribology Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
