Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403

공학

한국표면공학회지 (36권5호 393-397)

Study on Electroless Black Ni-Zn Plating Using Hydrazine as a Reducing Agent

히드라진에 의한 무전해 흑색 니켈-아연 합금 도금에 대한 연구

오영주;정원용;이만승;

한국과학기술연구원 금속공정연구센터;목포대학교 공과대학 신소재공학과;

Abstract

The effects of the composition and additives on the blackening and deposition rate of electroless Ni-Zn plating have been examined. Hydrazine resulted in lower sheet resistance of the deposit than sodium hypophosphite. Zinc concentration more than 15 wt% and small amount of ammonium sulfate in the deposits were needed in obtaining Ni-Zn deposit with a black color. An optimum condition was obtained for the black Ni-Zn deposit at an appreciable deposition rate.

Keywords

Black Ni-Zn;Electroless Plating;Deposition rate;Hydrazine;Ammonium sulfate;