Space Environmental Performance of Optical Coatings on Tedlar
AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS
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A space environment exposure test has been performed on a variety of samples of Cloud White Tedlar with a multi-layer thin-film coating on the surface applied by Optical Coatings Laboratory, Inc. OCLI representing potential spacecraft applications. This test was performed to evaluate new coating formulations. The Tedlar coated with the new formulations was compared with previously coated Tedlar material. For the coated Tedlar on foam samples, the Ta205ZrO2 configuration appeared to per form best and was comparable to the original coating configuration. Tedlar film samples were in general agreement with the foam samples, although all film samples with the new coatings appeared to degrade more than the films with the original coating. Changes in coatings on fused silica were very small. Degradation of the coated Tedlar is apparently due to changes in the Tedlar substrate, not the coating. The advantages in the newer coating configuration could well be in easier fabrication and improved adhesion.
- Coatings, Colorants and Finishes
- Miscellaneous Materials
- Ground Support Systems and Facilities for Space Vehicles