This citation summarizes a one-page announcement of technology available for utilization. Holographic detection of unbonded or delaminated surfaces of materials and structures is improved by using heluim instead of air in the vacuum test chamber. Wider-spaced interference fringes more clearly outline the flaws. ...FOR ADDITIONAL INFORMATION: Contact: Director, Technology Trassfer Division, P.O. Box 8757, BWI Airport, MD 21240. Refer to LAR-11866.


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    Title :

    Improved Flaw-Detection Method: Use of heluim improves flaw detection by holographic interferometry


    Publication date :

    1981


    Size :

    1 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Improved flaw-detection method

    Platt, R. J., Jr. | NTRS | 1980


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