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Optical properties of sputtered aluminum on graphite/epoxy composite material
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Witte Jr., William G. Teichman, Louis A. |
| Copyright Year | 1989 |
| Description | Solar absorptance, emittance, and coating thickness were measured for a range of coating thicknesses from about 400 A to 2500 A. The coatings were sputtered from an aluminum target onto 1-inch-diameter substrates of T300/5209 graphite/epoxy composite material with two different surface textures. Solar absorptance and emittance values for the specimens with the smooth surface finish were lower than those for the specimens with the rough surface finish. The ratio of solar absorptance to emittance was higher for the smooth specimens, increasing from 2 to 4 over the coating thickness range, than for the rough ones, which had a constant ratio of about 1. The solar absorptance and emittance values were dependent on the thickness of the sputtered coating. |
| File Size | 14201189 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19890016874 |
| Archival Resource Key | ark:/13960/t16m84z9q |
| Language | English |
| Publisher Date | 1989-08-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Emittance Aluminum Roughness Graphite-epoxy Composites Absorptance Film Thickness 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 | Technical Report |
