Effect of surfactant on the co-electrodeposition of the nano-sized ceria particle in the nickel matrix

• Published in: Journal of alloys and compounds Vol. 489; no. 2; pp. 650 - 658
• Main Authors: Sen, Ranjan, Bhattacharya, Sumit, Das, Siddhartha, Das, Karabi
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 21.01.2010; Elsevier
• Subjects: Ball milling; Composite materials; Cross-disciplinary physics: materials science; rheology; Electrodeposition, electroplating; Exact sciences and technology; Hardness; Materials science; Methods of deposition of films and coatings; film growth and epitaxy; Physics; Pulse co-electrodeposition; Surfactant; Ball milling; Pulse co-electrodeposition; Composite materials; Surfactant; Hardness; Cationic surfactant; Mechanical properties; Surfactants; Microhardness; Experimental result; Nanocomposites; Sodium; Composite coating; Electrodeposition; Electrolytes; Nickel; Powder grinding; Electrodeposited coatings
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2009.09.142

The nickel–ceria (Ni–CeO 2) nanocomposite coatings have been pulse electrodeposited from a Watts-type electrolyte containing nano-sized CeO 2 particles produced by high-energy ball milling technique (HEBM). Sodium Lauryl Sulphate (SLS) has been added in the electrolyte as a cationic surfactant. The effects of the surfactant on the zeta potential, co-deposition and distribution of ceria particles in the nickel matrix and hardness of composite coatings have been investigated. Experimental results show that the addition of SLS up to 0.10 g/l increases the amount of co-deposited ceria particles in the nickel matrix and microhardness of the nanocomposite. However, when the amount of SLS in the electrolyte is more than 0.1 g/l, there is a tendency to form agglomerates of ceria particles in the nickel matrix resulting no further increase in hardness of the Ni–CeO 2 nanocomposite coatings.