New and Improved Material for Expandable Structures

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Report Number: ASD TDR 62-964, p. 327-370
Author(s): Marco, D. M.
Corporate Author(s): Goodyear Aircraft Corporation
Laboratory: Directorate of Materials & Processes
Date of Publication: 1963-01
Pages: 44
DoD Project: 7320 - Fibrous Materials for Decelerators and Structures
Identifier: This paper is part of a conference proceedings. See AD0299030

The initial objective of the program being conducted by GAC under Contract AF 33(616)-7854 is to establish the general requirements of expandable structures with respect to special and re-entry environment; review present materials research which may be applicable to expandable structures; and recommend areas and specific programs in which additional research is required. The initial effort was a study which would fulfill the above objective. Upon completion of the initial study, the program was expanded to include four (4) specific programs involving research in the following areas: 1, Weaving of Stranded Metal Yarns 2. Film and Elastomer Permeability 3. Radiation Re-Entry Coating 4. High Temperature Protective Study Tasks 1 and 3 have just commenced with respect to this program; however, there is sufficient scientific data to establish feasibility of accomplishing their objectives. The permeability study is concerned with exposing polyvinyl fluoride; polyvinylidine fluoride, polytrifluoromonochloroethylene, and tetrafluoroethylene-hexafluoropropylene film to an ultraviolet source in a vacuum of approximately 10-6 Torr. These materials are being exposed to three different energy levels and changes in permeability, mechanical and chemical structure are being noted. A similar exposure and analysis will be conducted for a butyl, Viton, and Silicone elastomers. In the high temperature protective study, radiation, insulation, ablation and combinations of methods were investigated and analyzed for use with expandable structures.

Provenance: Lockheed Martin Missiles & Fire Control

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This paper was presented at the Directorate of Materials and Processes "Symposium on Fibrous Materials" held in Dayton, Ohio, on 16-17 October 1962