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  • 1
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    A polytetrafluorethylene insulated cable for high temperature oxygen aerospace applications (1983)
    In:  CASI
    Details
    Publication Date: 2017-10-02
    Description: For electrical cables to function and survive in the severe high temperature oxygen environment that will be experienced in the external tanks of the space shuttle, extreme cleanliness and material purity is required. A flexible light weight cable has been developed for use in pure oxygen at worst case temperatures of -190 to +260 degrees Centigrade and pressures as high as 44 pounds per square inch absolute. A comprehensive series of tests were performed on cables manufactured to the best commercial practices in order to establish the basic guidelines for control of build configuration as well as each material used in construction of the cable.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: Army Commun.-Electron. Command Proc. of the 32nd Intern. Wire and Cable Symp.; p 183-192
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Attaching strain gages by ultrasonic plastic welding (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Technique employs application of pressure and ultrasound to effect welding of encapsulated strain gates to metallic surfaces. Process requires no heat or adhesives. Technique might also be used to simplify curing of epoxy adhesives and for attachment problems like bonding cryogenic temperature sensors to structural parts.
    Keywords: FABRICATION TECHNOLOGY
    Type: MFS-23433 , NASA Tech Briefs (ISSN 0145-319X); 2; 3; P. 3
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Electromagnetic bonding of plastics to aluminum (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Electromagnetic curing is used to bond strain gage to aluminum tensile bar. Electromagnetic energy heats only plastic/metal interface by means of skin effect, preventing degradation of heat-treated aluminum. Process can be easily applied to other metals joined by high-temperature-curing plastic adhesives.
    Keywords: FABRICATION TECHNOLOGY
    Type: MFS-25083 , NASA Tech Briefs (ISSN 0145-319X); 4; 4; P. 577
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Fire-Resistant TFE Extrusions (1984)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Fire resistance of extruded tetrafluoroethylene (TFE) polymers improved by substitution of chlorinated hydrocarbon as wetting agent. Replacement of naphtha with perchloroethylene yields polymer that extrudes well and generates fewer pinholes. Product less susceptible to fire during manufacturing and in service.
    Keywords: MATERIALS
    Type: MFS-25917 , NASA Tech Briefs (ISSN 0145-319X); 8; 2; P. 212
    Format: text
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    NASA TECHNICAL REPORTS
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