Abstract

Radioisotope tracer studies of the deposition of nickel during nickel dipping of steel and of the effect of this nickel deposit on the reduction of cobalt ions to metallic cobalt during enamel firing showed the following: (1) The deposition of nickel on the metal surface during the dipping and the deposition of cobalt at the enamel‐metal interface during firing were both markedly affected by the type of cleaning given the steel and by the mechanical deformation of the metal surface. (2) The nickel from the nickel dip remained as metal at the interface during firing of the enamel. (3) The presence of the nickel deposit had little or no effect on the deposition of cobalt at the interface during firing.

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