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Materials and structures
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dolgin, Ben Arnold, Joe Al-Jamily, Ghanim Coulter, Dan Fichter, Buck Saito, Theodore T. George, Patricia Barbee, Troy Langenbeck, Sharon L. Gorenstein, Paul |
| Copyright Year | 1992 |
| Description | Materials and structures technology covers a wide range of technical areas. Some of the most pertinent issues for the Astrotech 21 missions include dimensionally stable structural materials, advanced composites, dielectric coatings, optical metallic coatings for low scattered light applications, low scattered light surfaces, deployable and inflatable structures (including optical), support structures in 0-g and 1-g environments, cryogenic optics, optical blacks, contamination hardened surfaces, radiation hardened glasses and crystals, mono-metallic telescopes and instruments, and materials characterization. Some specific examples include low coefficients of thermal expansion (CTE) structures (0.01 ppm/K), lightweight thermally stable mirror materials, thermally stable optical assemblies, high reliability/accuracy (1 micron) deployable structures, and characterization of nanometer level behavior of materials/structures for interferometry concepts. Large filled-aperture concepts will require materials with CTE's of 10(exp 9) at 80 K, anti-contamination coatings, deployable and erectable structures, composite materials with CTE's less than 0.01 ppm/K and thermal hysteresis, 0.001 ppm/K. Gravitational detection systems such as LAGOS will require rigid/deployable structures, dimensionally stable components, lightweight materials with low conductivity, and high stability optics. The Materials and Structures panel addressed these issues and the relevance of the Astrotech 21 mission requirements by dividing materials and structures technology into five categories. These categories, the necessary development, and applicable mission/program development phasing are summarized. For each of these areas, technology assessments were made and development plans were defined. |
| File Size | 866712 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940010362 |
| Archival Resource Key | ark:/13960/t3pw1dj3r |
| Language | English |
| Publisher Date | 1992-08-15 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Instrumentation Metal Coatings Thermal Expansion Composite Materials Optical Materials Inflatable Structures Dielectrics Structural Engineering Composite Structures Mirrors Antireflection Coatings Thermal Stability Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
