Method to electroplate nickel-phosphorus coating with improved current efficiency

• Main Authors: LEE, CHUN-YING, CHIEN, CHIH-TAO, LIN, CHAO-SUNG, LIN, PAI-LI, CHEN, FU-JE, CHUNG, WEI CHIH
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2007
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; METALLURGY; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS

Embodiments of the present invention provide a method for electroplating high-phosphorus nickel-phosphorus coatings with improved cathodic current efficiency. The method includes an electrolyte containing nickel ions and phosphorus acid, and a pulse current waveform. The parameters of the current wa...