Electrochemical method for visual detection of nonmetallic surfa

Details Electrochemical method for visual detection of nonmetallic surfa Electrochemical method for visual detection of nonmetallic surfa

1982-11-01

1985-02-12

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

B01D 5940

Patent

active

044989601

ABSTRACT:
An electrochemical method for fast and non-destructive visual detection of nonmetallic surface inclusions in metallic substrates is provided. The method uses electrode modification techniques, wherein, for example, a monomer is electrochemically polymerized, to form a dark film on the metallic substrate, thus causing any nonconductive inclusions, which will not be coated with the film, to appear bright and highly visible.

REFERENCES:
patent: 3123806 (1964-03-01), Alburger
patent: 3419479 (1968-12-01), Klein
patent: 3530045 (1970-09-01), Alburger
Diaz et al., "Electrochemical Polymerization of Pyrrole", Journal of the Chem. Soc. Chem. Communications (1979), pp. 635-636.
Noufi et al., "Protection of Semiconductor Photoanodes with Photoelectrochemically Generated Polypyrrole Films", J. Electrochemical Soc., vol. 128, No. 12, (1981), pp. 2596-2599.
Schoot et al., "New Electrochromic Memory Display", Appl. Phys. Lett., vol. 23, No. 5, (Jul. 15, 1973), pp. 64-65.

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