Loading...
Please wait, while we are loading the content...
Similar Documents
Fundamental tribological properties of ceramics
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Buckley, D. H. Miyoshi, K. |
| Copyright Year | 1985 |
| Description | When a ceramic is brought into contact with itself, another ceramic, or a metal, strong bond forces can develop between the materials. Adhesion between a ceramic and itself or another solid are discussed from a theoretical consideration of the nature of the surfaces and experimentally by relating bond forces to the interface resulting from solid state contact. Elastic, plastic, and fracture behavior of ceramics in solid-state contact are discussed as they relate to friction and wear. The contact load necessary to initiate fracture in ceramics is shown to be appreciably reduced with tangential motion. Both friction and wear of ceramics are anisotropic and relate to crystal structure as with metals. Both free energy of oxide formation and the d valence bond character of metals are related to the friction and wear characteristics for metals in contact with ceramics. Lubrication is found to increase the critical load necessary to initiate fracture of ceramics with sliding or rubbing contact. |
| File Size | 1888776 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850007584 |
| Archival Resource Key | ark:/13960/t46q6tv88 |
| Language | English |
| Publisher Date | 1985-01-01 |
| Access Restriction | Open |
| Subject Keyword | Nonmetallic Materials Fracture Mechanics Silicon Carbides Ceramics Elastic Deformation Electron Microscopy Crystallography Adhesion Ferrites Coefficient of Friction Fractures Materials Friction Anisotropy Wear Lubrication Aluminum Oxides Crystal Structure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
