Landrum, Robert Dallas, 1882- · [Cleveland, The Harshaw Fuller & Goodwin co.] · leaf 66
t is im-probable that the reduction of the cobalt silicate at thetemperatures involved would go far enough to producemetallic cobalt. The writer has no new theories to offer, but he is verystrongly of the opinion that cobalt is a necessary ingredi-ent in a successful ground coat for two reasons,… … Fig. 1 Second, whatever may be the reason, the fact re-mains that cobalt grounds adhere more firmly to the steelthan those not containing this metal, and it is the opin-ion of the writer that any non-cobalt ground coat can beimproved in its adhesive properties by the correct addi-tion of cobalt to…
Enamel and enameling
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