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  • 1
    facet.materialart.
    Unknown
    Simplified systematic production of graphite/polymide prepreg (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Systematic method of producing preimpregnated polymide/graphite material is ideally suited for researchers and small lot producers of composite structures.
    Keywords: MATERIALS
    Type: LAR-12266 , NASA Tech Briefs (ISSN 0145-319X); 2; 4; P. 3
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    Nondestructive spot tests allow rapid identification of metals (1970)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Ordered qualitative test sequence, presented in flow chart form, permits identification of all common metallurgical elements and many high-temperature, stainless, high and low carbon, and tool steels within about 30 minutes. Identification is made from colors or specific reactions produced by the addition of standard chemical reagents.
    Keywords: MATERIALS
    Type: LAR-10539
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    Flexural Properties of Aramid-Reinforced Pultrusions (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Four resin systems show improved properties after postcuring. Comparison of flexural properties made of pultrusions reinforced by Kevlar (or equivalent) aromatic polyamide and having constant fiber volume and varied matrices, pretreatments, and postcures. Objective of study to improve flexural properties of pultrusion reinforced with Kevlar (or equivalent). Advantages of using pultrusion process, over conventional hand-layup methods included higher production rates, low facility and labor requirements, and reduced manufacturing costs of advanced composites.
    Keywords: MATERIALS
    Type: LAR-13442 , NASA Tech Briefs (ISSN 0145-319X); 11; 2; P. 46
    Format: text
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    NASA TECHNICAL REPORTS
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