Codeposition of SiC Particles with Electrolytic Nickel

Archives of Metallurgy and Materials

L. Burzyńska¹  E. Rudnik¹  I. Dobosz¹ 

[1] Laboratory of The Physical Chemistry and Electrochemistry, Faculty of Non-Ferrous Metals, AGH University of Science and Technology, 30-059 Kraków, 30 Mickiewicza Av., Poland

关键词: Keywords: electrodeposition;    composite;    nickel;    silicon carbide;   

DOI  :  10.2478/v10172-011-0072-2

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

Ni/SiC composite coatings were produced by electrodeposition from chloride-sulphate bath. The effect of SiC concentration on the percentage of embedded particles at two current densities (0.75 and 1.50 A·dm-2) was determined. SiC content in the nickel matrix was in the range of 13-23 vol%, but lower values were found for higher current density. Increased particles contents in the coatings practically did not change microhardness of deposits (approximately 300 HV), but it increased corrosion resistance. Morphology and particle distribution in the deposits was studied with optical and transmission electron microscopes. Specific surface charge of SiC particles as well as adsorption of Ni2+ions on the powder particles were also determined.

【 授权许可】

Unknown