Baths for the electrodeposition of tin-graphite or tin/lead-grap

Chemistry: electrical and wave energy – Processes and products

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204 541, C25D 330, C25D 332, C25D 360

Patent

active

046523499

ABSTRACT:
For the production of tin-graphite or respectively tin/lead-graphite layers, it is known to electrodeposit a tin or respectively tin/lead layer and to mechanically incorporate graphite in the boundary zone. In accordance with the method of the invention, the tin-graphite or tin/lead-graphite layer is produced electrolytically in a single operation, operating with an electroplating bath on a strongly acid basis in which graphite powder is dispersed by means of an acid-stable wetting agent, and at temperatures of up to 35.degree. C. In the respective electroplating bath the solution has a pH value equal to or less than 2 and contains in acid-stable wetting agent for graphite.

REFERENCES:
patent: 2489523 (1949-11-01), Clifton

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