Study of the surface charge of silicon carbide (SIC) particles for electroless composite deposits: nickel-SiC

• Published in: Surface & coatings technology Vol. 96; no. 2; pp. 300 - 304
• Main Authors: Grosjean, A., Rezrazi, M., Tachez, M.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 25.11.1997; Elsevier
• Subjects: Applied sciences; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Materials science; Metals. Metallurgy; Methods of deposition of films and coatings; film growth and epitaxy; Nickel-SiC electroless composite deposit; Physics; Surface charge; Surface charge; Nickel-SiC electroless composite deposit; pH value; Composite materials; Electrophoretic mobility; Electroless deposition; Silicon carbides; Surface treatments; Nickel; Experimental study; Electrophoretic deposition
• ISSN: 0257-8972; 1879-3347
• DOI: 10.1016/S0257-8972(97)00180-1

The aim of this work is develop interest in the electroless composite deposits Ni-SiC and, more particulary, in the physicochemistry of the particles used in relation to the deposit nickel bath. First, a pre-treatment of particles in an acid solution is realized to eliminate the impurities which hinder the codeposition process. Then, the surface charge of particles towards the deposit bath without and with organic additives is studied. The influence of the use of these additives on the electroless composite deposits Ni-SiC is then observed. The resulting co-deposits are analysed under an optical microscope and the percentage of included particles is determined by picture analysis.