HIGH-TEMPERATURE PROTECTIVE RE-ENTRY COATINGS FOR EXPANDABLE STRUCTURES.
Abstract
Research is being conducted to develop a coating for a high-temperature, high-strength fabric wherein the resulting composite will be suitable for the fabrication of expandable re-entry structures that are capable of withstanding a peak skin temperature of 2000 F. This report describes the accomplishments during the first year of this program. Experimental coatings were formulated and subjected to simple evaluations in order to arrive at an estimate of their potential. It is concluded that several coatings, some entirely inorganic and some containing organic materials, should be investigated in greater detail. The coatings judged to be most promising appear to be leak resistant to 2000 F when subjected to 1-psi inflation pressure. They are, however, relatively fragile and inflexible, especially after exposure to simulated re-entry heat. It is anticipated that improvements can be made to provide coatings having improved initial toughness and flexibility, but there is, as yet, no clue to what changes in coating composition will significantly improve the 'after firing' properties. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1964
- Accession Number
- AD0478056
Entities
People
- W. F. Durbin