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Atomic oxygen effects on ldef experiment ao171
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Finckenor, Miria M. Norwood, Joseph K. Whitaker, Ann F. Kamenetzky, Rachel R. |
| Copyright Year | 1993 |
| Description | The Solar Array Materials Passive Long Duration Exposure Facility (LDEF) Experiment (SAMPLE), AO171, contained in total approximately 100 materials and materials processes with a 300 specimen complement. With the exception of experiment solar cell and solar cell modules, all test specimens were weighed before flight, thus allowing an accurate determination of mass loss as a result of space exposure. Since almost all of the test specimens were thermal vacuum baked before flight, the mass loss sustained can be attributed principally to atomic oxygen attack. The atomic oxygen effects observed and measured in five classes of materials is documented. The atomic oxygen reactivity values generated for these materials are compared to those values derived for the same materials from exposures on short term shuttle flights. An assessment of the utility of predicting long term atomic oxygen effects from short term exposures is given. This experiment was located on Row 8 position A which allowed all experiment materials to be exposed to an atomic oxygen fluence of 6.93 x 10(exp 21) atoms/cm(sup 2) as a result of being positioned 38 degrees off the RAM direction. |
| File Size | 865598 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930019092 |
| Archival Resource Key | ark:/13960/t2x39q26n |
| Language | English |
| Publisher Date | 1993-04-01 |
| Access Restriction | Open |
| Subject Keyword | Atomic And Molecular Physics Earth Orbital Environments Solar Arrays Composite Materials Oxygen Atoms Reactivity Metals Weight Reduction Long Term Effects Long Duration Exposure Facility Polymeric Films Paints Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
