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Effect of long-term exposure to low earth orbit (leo) space environment
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Zimcik, D. G. |
| Copyright Year | 1987 |
| Description | Data obtained from components and materials from the Solar Maximum Mission satellite are presented and compared to data for similar materials obtained from the Advanced Composite Materials Exposure to Space Experiment (ACOMEX) flown on Shuttle mission STS-41G. In addition to evaluation of surface erosion and mass loss that may be of importance to very long-term missions, comparisons of solar absorptance and thermal emittance measurements for both long and short term exposures were made. Although the ratio of absorptance over emittance can be altered by proper choice of materials to ensure a proper operating environment for the spacecraft, once the thermal design is established, it is important that the material properties not change in order to maintain the operating environment for many payload and bus items such as electronics, batteries, fuel, etc. However, data presented show significant changes after short exposure in low Earth environment. Moreover, the measured changes are shown to differ according to the manner of exposure, i.e., normal or oblique, which also affects the resultant eroded surface morphology. These results identify constraints to be considered in development of flight experiments or laboratory testing. |
| File Size | 135570 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870016774 |
| Archival Resource Key | ark:/13960/t9964f88g |
| Language | English |
| Publisher Date | 1987-06-01 |
| Access Restriction | Open |
| Subject Keyword | Inorganic And Physical Chemistry Earth Orbital Environments Spaceborne Experiments Space Shuttle Mission 41-g Exposure Absorptance Solar Maximum Mission Long Duration Space Flight Degradation Emittance Composite Materials Oxygen Atoms Thermal Emission Low Earth Orbits Surface Reactions Polymers Erosion Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
