TY JOUR TI RELEVANCE AND PROSPECTS OF AMMONIA-CITRATE ELECTROLYTES FOR NICKEL PLATING KW ammonia-citrate electrolyte KW composite electrochemical coatings KW nickel JO Modern Technologies and Scientific and Technological Progress AU Istomina, A.A. AU Shabrov, D.E. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»