FIELD: chemical deposition of cobalt coating on metal and ceramic surfaces. SUBSTANCE: composition contains, g/l: cobalt salt (in terms of metal), 1.8-4.7; hydrazine hydrate, 3-40; thiourea, 0.2-2; 25-% aqua ammonia, the balance. Coating of ceramic base with cobalt is carried out without preliminary activation with compounds of platinum metals. Produced coating contains no boron or phosphorus impurities. EFFECT: higher efficiency of use. 2 tbl, 3 ex
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