Annealing behavior of electrodeposited Ni-TiO2 composite coatings

Lin, Charng‐Yu; Lee, Chun-Ying; Chang, Chao‐Kai

doi:10.1016/j.surfcoat.2004.10.001

Cited by 43 publications

(17 citation statements)

References 27 publications

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“…The inert nanoparticles, once adsorbing metal ions, acquire positive surface charge and are potentially adsorbed on the electrode surface. Further reduction of these metal ions results in strong adsorption of the particles onto the metal matrix [20]. The agitation of electrolyte has a significant role in the codeposition of the inert nanoparticles in metal electrodeposition as same as the ion adsorption [21,22].…”

Section: Electrodeposition Factors Affecting the Composition Of Coatingmentioning

confidence: 99%

Ni–TiO2 nanocomposite coating with high resistance to corrosion and wear

Baghery

Farzam

Mousavi

et al. 2010

Surface and Coatings Technology

272

134

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Section: Electrodeposition Factors Affecting the Composition Of Coatingmentioning

confidence: 99%

Ni–TiO2 nanocomposite coating with high resistance to corrosion and wear

Baghery

Farzam

Mousavi

et al. 2010

Surface and Coatings Technology

272

134

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“…In the last years, a lot of study has been performed on the TiO 2 codeposition process, with matrices as Cu [2,3], Ag [2,3] and Zn [4,5]. Specifically, TiO 2 particle-reinforced Ni composite electrodeposits exhibit improved mechanical properties [6][7][8][9][10][11][12], accompanied by an interesting photoelectrochemical [3] and electrocatalytical behaviour [13]. Moreover, literature survey has revealed that the incorporation of nano-sized TiO 2 particles into the nickel matrix, under direct current (DC) electrodeposition, leads to the formation of finer structures with reduced grain size [12,14,15], decreases the residual tensile stresses [12], increases the hardness [6][7][8][9][10][11][12], wear [9][10][11][12] and corrosion resistance [6,10,12] of the coatings, compared to pure Ni electrodeposits, although controversial results have been reported concerning corrosion resistance [8].…”

Section: Introductionmentioning

confidence: 99%

Pulse electrodeposition of Ni/nano-TiO2 composites: effect of pulse frequency on deposits properties

Spanou

Pavlatou

2010

J Appl Electrochem

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Pure and composite nickel deposits containing nano-TiO 2 particles (d m = 21 nm) were produced under direct-DC and pulse current-PC conditions. The influence of pulse frequency on the codeposition of TiO 2 particles, preferred orientation of Ni crystallites and grain size, as well as microhardness of the composites, was investigated systematically. Composites prepared in PC regime displayed higher incorporation percentage than those obtained under DC conditions, and the highest incorporation rates were achieved at pulse frequencies m [ 100 Hz. The application of pulse frequency accompanied by the embedding of TiO 2 nanoparticles in the nickel matrix resulted in a strong influence upon the crystalline orientation, the grain size and the corresponding microhardness. All composites exhibited higher microhardness values compared to the pure deposits, independent of the applied current conditions. Overall, when ascribing the observed strengthening effect of composites, not only grain refinement and dispersion strengthening mechanisms but also preferred crystalline orientation should be taken into consideration.

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“…Although nickel-titania composites have been reported to be advantageous for high temperature [41] and photoelectrochemical applications [6] relatively little research effort has been dedicated to the electrodeposition of nickel titania composites [6,7,41,42]. The main goal of this study was to investigate the effects of selected working parameters on the amount of titania nanoparticle incorporation within a nickel matrix using two kinds of nickel plating baths; an acidic sulfamate and an alkaline pyrophosphate bath.…”

Section: Introductionmentioning

confidence: 99%