Thermodynamics of electrodeposited Ni-B-SiC composite coatings
来源期刊:中国有色金属学报(英文版)2001年第5期
论文作者:郭忠诚 朱晓云 杨显万
文章页码:800 - 802
Key words:Ni-B-SiC composite coating; φ-pH diagram; electrodeposition
Abstract: The φ-pH diagram of Ni-B-H2O system was drawn, and the mechanism of electrodepositing Ni-B-SiC composite coatings was discussed. The results show that the deposition of Ni and B occurs prior to that of H2 because of the over-potential of H2 evolution on the Fe substrate. Boron can not singly deposit in aqueous solution. Nickel and boron can co-deposit in the form of Ni4B3 without evolution of hydrogen when the cathodical potential is kept to be -1.415~-1.700V.