Non-destructive inspection of composite and adhesively bonded st

Details Non-destructive inspection of composite and adhesively bonded st Non-destructive inspection of composite and adhesively bonded st

1976-06-04

1977-08-23

Borchelt, Archie R.

Radiant energy

Radiation tracer methods

250461R, G01N 2116

Patent

active

040442535

ABSTRACT:
Surface defects in composite and adhesively bonded structures that penetrate to a metal substrate are detected by applying a solution of 8-hydroxyquinoline to a surface of such a structure and viewing the surface under ultraviolet light. The presence of a flaw or crack leading from the surface to the metal substrate is indicated by a fluorescent glow.

REFERENCES:
patent: 3506827 (1970-04-01), Alburger
patent: 3857033 (1974-12-01), Cobb
patent: 3899450 (1975-08-01), Molina

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