Conductive, Lusterless Coatings for Light Metals.

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Abstract:

Four proposed coating systems were examined to select the best candidate for a lusterless, conductive coating on light metals. A system consisting of 0.8 mil of Watts-type nickel and 0.8 mil of porous nickel complied successfully with all the requirements listed in the Technical Guidelines. Gloss index values before and after 100 cycles of abrasion, contact resistance and corrosion resistance were better than the specified limits. Porosity in the second layer was induced by adding colloidal graphite to the plating bath. This porosity reduced reflectance to a lower level than that obtained with porefree nickel deposits.

Author(s):
Layer, Carl H. ; Schaer, Glenn R. ; Safranek, William H. ; Mccallum, John
Author Organization(s):
BATTELLE MEMORIAL INST COLUMBUS OH COLUMBUS LABS
Descriptive Note:
Semiannual rept. 16 Jun-16 Dec 69,
Pagination:
0039

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ECOM-0360-1
Contract/Grant Number(s):
DAAB07-69-C-0360
Task Number(s):
1T062105A34800
Project Number(s):
DA-1-T-062105-A-348
Monitor Series:
0360-1
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*METALS, COATINGS), (*METAL COATINGS, NICKEL), (*COATINGS, REFLECTIVITY), CHROMIUM, POROUS METALS, POWDER METALS, STEEL, ALUMINUM ALLOYS, MAGNESIUM ALLOYS, ELECTRICAL CONDUCTIVITY, ELECTRICAL EQUIPMENT, CORROSION RESISTANCE, ELECTRIC TERMINALS, SURFACE PROPERTIES, ELECTROPLATING, ELECTRICAL RESISTANCE, GRAPHITE, POROSITY, WEAR RESISTANCE, CAMOUFLAGE, ELECTRONIC EQUIPMENT, ANTENNAS
Field(s)/Group(s):
Electrical and Electronic Equipment, Coatings, Colorants and Finishes, Fabrication Metallurgy
Keyword(s):
LUSTERLESS COATINGS, NICKEL COATINGS
Report Date:
1970 Feb 01