Accession Number : ADA267579


Title :   Long Duration Exposure Facility Experiment M0003 Deintegration Observation Database


Corporate Author : AEROSPACE CORP EL SEGUNDO CA ENGINEERING AND TECHNOLOGY GROUP


Personal Author(s) : Gyetvay, S R ; Coggi, J M ; Meshishnek, M J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a267579.pdf


Report Date : 17 Feb 1993


Pagination or Media Count : 99


Abstract : The four trays of the M0003 materials experiment on LDEF contained over 1600 samples from 20 subexperiments. The complete sample complement represented a broad range of materials, including thin film optical coatings, paints, polymer sheets and tape, adhesives and composites, for use in various spacecraft applications, including thermal control, structures, optics, and solar power. Since some subexperiments included duplicate samples exposed on the leading and trailing edge trays for 9-week, 19-week, 40-week, and 69-month durations, comparisons provided a valuable time history of degradation During the deintegration of the subexperiments from the M0003 trays, each sample was examined using bright field, dark field, and Nomarski light microscopy techniques. Over 3,000 color macrographs and photomicrographs were made of the condition of the M0003 trays and the individual samples. Records of the condition of the samples, photographic records and all available references of publications on postflight analyses on each sample were collected in a computer database (4th Dimension(TM) for the Macintosh computer). Upon written request, the database records and photographs for specific samples may be obtained from The Aerospace Corporation Archives. Copies of the electronic database are available on floppy disk by request, as well. Directions for requesting the records, photographs, and database copies are given in this report.... Spacecraft contamination, Laser optics.


Descriptors :   *OPTICS , *SPACECRAFT , *THIN FILMS , *LASERS , *CONTAMINATION , *OPTICAL COATINGS , THERMAL PROPERTIES , DATA BASES , CONTROL , ELECTRONICS , DEGRADATION , COMPUTERS , MATERIALS , POLYMERS , COMPOSITE MATERIALS , COMPARISON , STRUCTURES , LIGHT , MICROSCOPY , COATINGS , SOLAR ENERGY , SHEETS , TAPES , PAINTS , POWER , RECORDS , ADHESIVES , PHOTOGRAPHS , TRAILING EDGES , TRAYS


Subject Categories : Polymer Chemistry
      Coatings, Colorants and Finishes
      Optics
      Astronautics


Distribution Statement : APPROVED FOR PUBLIC RELEASE