Composition for ultrasonic inspection of objects and method for

Details Composition for ultrasonic inspection of objects and method for Composition for ultrasonic inspection of objects and method for

1974-02-21

1976-02-17

Padgett, Benjamin R.

Compositions

Nonreactive analytical, testing, or indicating compositions

2523012P, G01N 2904, C09K 300

Patent

active

039391019

ABSTRACT:
Composition for ultrasonic inspection of surface and subsurface flaws and discontinuities in bodies, in the form of an aqueous gel containing an N-alkyl-2-pyrrolidone having a short alkyl chain, preferably N-methyl-2-pyrrolidone, a water soluble surfactant, e.g. a nonyl phenyl ether of polyethylene glycol, and silica, preferably in fine powder form, suspended uniformly in the gel. The composition or gel is applied to a surface of a body such as a metal aircraft structural part, and a probe or transducer of an ultrasonic testing device is contacted or pressed against the gel and the transducer is caused to move or slide in various directions on the gel to transmit ultrasonic energy through the gel and the object, to inspect the object and locate any surface or subsurface flaws or discontinuities.

REFERENCES:
patent: 3716494 (1973-02-01), Molina
patent: 3806460 (1974-04-01), Mukai et al.
patent: 3838160 (1974-09-01), Molina

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