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Ion sputter textured graphite. [anode collector plates in electron tube devices]
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Forman, R. Sovey, J. S. Curren, A. N. |
| Copyright Year | 1982 |
| Description | A specially textured surface of pyrolytic graphite exhibits extremely low yields of secondary electrons and reduced numbers of reflected primary electrons after impingement of high energy primary electrons. An ion flux having an energy between 500 eV and 1000 eV and a current density between 1.0 mA/sq cm and 6.0 mA/sq cm produces surface roughening or texturing which is in the form of needles or spines. Such textured surfaces are especially useful as anode collector plates in high efficiency electron tube devices. |
| File Size | 556310 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830001847 |
| Archival Resource Key | ark:/13960/t8jd9ps03 |
| Language | English |
| Publisher Date | 1982-09-14 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Pyrolytic Graphite Surface Roughness Electron Tubes Electron Emission Current Density Electron Bombardment Anodes Sputtering Textures Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
