Synthesis and properties of electrodeposited Ni/ceria nanocomposite coatings

Aruna, S.T.; Bindu, C.N.; Selvi, V. Ezhil; Grips, V.K. William; Rajam, K.S.

doi:10.1016/j.surfcoat.2005.10.035

Cited by 132 publications

(67 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The incorporation of rare earth compounds into the coatings, especially of cerium oxide (CeO 2 ) into a nickel coating, has been shown to improve the wear, corrosion and oxidation resistance, as well as the hardness and catalytic properties. [1][2][3][4][5][6][7] Electrodeposited Ni/CeO 2 nanocomposite coating showed improved microhardness, corrosion resistance and wear resistance when compared to Ni. 4 Samarium is another rare-earth element that, in close analogy with the behavior of cerium, also forms thin films capable of protecting the metallic substrates from corrosion attack.…”

mentioning

confidence: 99%

“…[1][2][3][4][5][6][7] Electrodeposited Ni/CeO 2 nanocomposite coating showed improved microhardness, corrosion resistance and wear resistance when compared to Ni. 4 Samarium is another rare-earth element that, in close analogy with the behavior of cerium, also forms thin films capable of protecting the metallic substrates from corrosion attack. 8 Recently, Nickel coatings obtained by electrodeposition, from a sulfamate bath in the presence of Samarium (III), showed improved corrosion resistance.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Samarium Additive Effect onto the Nickel Electrodeposition Process

López‐Martínez¹,

Méndez²,

Bueno³

et al. 2017

J. Electrochem. Soc.

View full text Add to dashboard Cite

In the present work, nickel-samarium coatings (Ni-Sm) with 1.88% of samarium were obtained by electrodeposition from a nickel electrolyte composed of (NH 2 HSO 3 , Ni(CO 3 ) 2 and H 3 BO 3 ) and containing Sm 2 (SO 4 ) 3 . The electroactivity intervals of each component of the electrolytic bath and the effect of samarium (III) on the nickel electroplating process were studied by cyclic voltammetry and by electrochemical impedance spectroscopy (EIS). The results indicate that H 3 BO 3 and Sm 2 (SO 4 ) 3 added to the electrolytic bath are both reduced during the nickel electroplating. The Ni-Sm coatings were characterized using scanning electron microscopy (SEM), X-ray Diffraction (XRD), X-ray fluorescence (XRF) and X-ray photoelectron spectroscopy (XPS). The results indicate that the samarium species incorporated in the nickel coatings are found as Sm (III) Rare earth-transition metal alloys and nanocomposites have been attracting researcher's interest because of their excellent magnetic, hydrogen absorbing and catalytic properties. The incorporation of rare earth compounds into the coatings, especially of cerium oxide (CeO 2 ) into a nickel coating, has been shown to improve the wear, corrosion and oxidation resistance, as well as the hardness and catalytic properties.1-7 Electrodeposited Ni/CeO 2 nanocomposite coating showed improved microhardness, corrosion resistance and wear resistance when compared to Ni. 4 Samarium is another rare-earth element that, in close analogy with the behavior of cerium, also forms thin films capable of protecting the metallic substrates from corrosion attack. 8 Recently, Nickel coatings obtained by electrodeposition, from a sulfamate bath in the presence of Samarium (III), showed improved corrosion resistance. Usually, the incorporation of rare earth compounds into the coatings are obtained using an electrolytic bath, which contains rare earth nanoparticles or microparticles suspended in the electrolyte; these particles are embedded in the electroplated layer by applying an electrical current. Nevertheless, the possibility of obtaining a homogenous co-deposit of these particles in the matrix of Ni is very complicated and depends on many factors, such as particle size and distribution uniformity in the electrolyte.A new procedure for the creation of a Ni-CeO 2 composite coating was studied through the simultaneous electrodeposition of the metal and cerium oxide without the addition of CeO 2 particles in the electrolytic bath.10 Likewise, this procedure can be used for the incorporation of samarium compounds on Ni coatings. 9 Although studies have been reported on the deposition of rare earth and rare earth alloys produced by electroplating, the mechanism is not clear yet. 8,[10][11][12] The aim of this work was to study the role of the samarium (III) during the Ni electroplating on a Pt substrate from a sulfamate electrolyte. Electrochemical studies were carried out by cyclic voltammetry and electrochemical impedance spectroscopy (EIS). ExperimentalThe studies of nickel electrode...

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

Samarium Additive Effect onto the Nickel Electrodeposition Process

López‐Martínez¹,

Méndez²,

Bueno³

et al. 2017

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…Currently, on the elements made of aluminium, electrolytic nickel coatings with dispersed hard ceramic particles of micrometric dimensions (1-10 mm) are applied. Anti-abrasion properties of these coatings depend, among others, on the content of hard particles, and on their type, size and shape [1,2]. This study discusses the influence of the content of alumina as a dispersed phase on the corrosion behaviour and tribological properties of composite coatings.…”

Section: Introductionmentioning

confidence: 99%

Effect of Al2O3 Ceramic Particles on Corrosion Behaviour and Tribological Properties of Nickel Composite Coatings

Nowak¹,

Najder²,

Opyrchał³

et al. 2016

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

The paper presents a study on corrosion behaviour and tribological properties of nickel composite coatings deposited by electrochemical method on aluminium alloy from 2xxx series (AlCu4MgSi). The nickel composite coatings were produced in a Watts bath of the following chemical composition: NiSO4·7H2O 150 g/l, NiCl2·6H2O 30 g/l, H3BO3 30 g/l with the addition of saccharin in an amount of 2 g/l. As hard ceramic dispersed particles embedded in the coating, alumina (Al2O3) was used in an amount of 12,5; 25; 50 and 75 g/l. Coatings were produced using cathodic current density of 6 A/dm2, bath temperature of 60°C, pH 4, and the time 60 minutes. The electroplating bath was stirred with a mechanical stirrer (350 rpm). The results obtained were compared with a nickel coating deposited without the ceramic particles. It was found that the presence of Al2O3 increases the wear resistance of composite coatings, but does not significantly improve the corrosion properties.

show abstract

“…Metal-matrix composite electrodeposition refers to electrolysis in which nanoparticles are suspended in the electrolyte and are subsequently embedded in the electro-formed solid phase. The resulting composite possesses properties that differ from the bulk, depends on the degree and type of particle incorporation [4][5]. The properties of nano composite materials depend not only on the properties of their individual parents, but also on their morphology and interfacial characteristics [6][7].…”

Section: Introductionmentioning

confidence: 99%

Influence of pH on the Electrochemical Deposition of Composite Coatings in Copper Matrix with Tio2 Nanoparticles

Salehi¹,

Delgosha

Sharifi

2014

Optics

View full text Add to dashboard Cite

Cu-nanoTiO 2 composite coatings electroplated from copper sulfate bath were obtained and characterized.The paper presents the influence of the different pH of Cu-TiO 2 coatings obtained at DC current density. The pHwere 0.5and2in electroplating bath.The surface morphology andcomposition of layers were studied by scanning electron microscopy (SEM) and EDX analysis.The influences of pH parameter on the thickness, grain size and surface morphology of coating were studied.

show abstract

Synthesis and properties of electrodeposited Ni/ceria nanocomposite coatings

Cited by 132 publications

References 24 publications

Samarium Additive Effect onto the Nickel Electrodeposition Process

Samarium Additive Effect onto the Nickel Electrodeposition Process

Effect of Al2O3 Ceramic Particles on Corrosion Behaviour and Tribological Properties of Nickel Composite Coatings

Influence of pH on the Electrochemical Deposition of Composite Coatings in Copper Matrix with Tio2 Nanoparticles

Contact Info

Product

Resources

About