Electroless deposition of nickel and copper on titanium substrates: Characterization and application

Mahmoud, S. S.

doi:10.1016/j.jallcom.2008.05.079

Cited by 17 publications

(3 citation statements)

References 25 publications

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“…It not only keeps mechanical properties and low temperature performances of titanium alloys, but also improves the wear-resistance, corrosion resistance, heat conduction, and high temperature oxidation resistance. So the coatings can serve as a protector to extend useful time in the fields of aerospace, ocean, or chemical engineering [6] and enhance the ability of electrochemical degradation towards organic and toxic pollutants [11].…”

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confidence: 99%

Enhanced Corrosion Resistance and Micro-Hardness of Titanium with Electroless Deposition Ni-W-Cr-P Coating

Long

Xiao

et al. 2013

Materials and Manufacturing Processes

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In the present study, Ni-W-Cr-P quaternary alloy coatings were prepared on titanium-based alloys by electroless deposition. The morphology, crystal structure, microhardness, and corrosion resistance of samples were studied by scanning electron microscope (SEM), X-ray diffractometer (XRD), microhardness tester, and electrochemical analyzer. The results show that the microstructure of these alloy films changes with the increase of annealing temperature. As-deposited alloy layers belong to nickel-based mischcrystal structure, and its crystallinity was enhanced to 200 C and 300 C, gradually; the new phase Ni 3 P began to P generated. Because of the different structures after annealing, microhardness and corrosion resistance of the alloy coatings possess a relevant change. The Ni-W-Cr-P alloy coatings heated at 600 C exhibit better microhardness and corrosion resistance than those of samples at other annealing temperature. The related mechanisms of those results were also discussed, briefly.

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confidence: 99%

Enhanced Corrosion Resistance and Micro-Hardness of Titanium with Electroless Deposition Ni-W-Cr-P Coating

Long

Xiao

et al. 2013

Materials and Manufacturing Processes

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“…Theoretically, disorder in arrangement of atoms manifests itself as a broad peak in X-ray diffractograms. 17 The mechanism of formation of electroless Ni-P coatings suggested that during EN deposition, random capturing of phosphorus on nickel atoms occurs and the variation in the rate of segregation of nickel and phosphorus atoms determines the crystallinity of the resultant coating. Between these two elements, the rate of diffusion of phosphorus is relatively small compared to that of nickel.…”

Section: Structurementioning

confidence: 99%

Electroless nickel–phosphorus deposition on carbon steel CK-75 and study of the effects of some parameters on properties of the deposits

2009

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Electroless nickel-phosphorus (Ni-P) deposition provides coatings with high hardness and excellent resistance to wear and abrasion. In this study, autocatalytic deposition of Ni-P alloy has been carried out on steel CK-75 sheets from bath containing nickel sulfate hexahydrate, sodium hypophosphite hydrate, thiourea, lactic acid, and sodium acetate. The effects of lactic acid concentration, pH and temperature on deposition rate, composition of deposits, and hardness have been studied. Also the changes in the hardness and structure of deposits by heat-treatment were studied by X-ray diffraction and scanning electron microscopy methods. It is shown that deposits crystallized after heat-treatment at 400°C for 1 h and crystallization to Ni and Ni 3 P was observed.

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“…Metal platings are very difficult on aluminum, aluminum alloy, stainless steel and titanium [1][2][3][4][5][6][7][8][9][10]. Those metals had strongly passive film.…”

Section: Introductionmentioning

confidence: 99%

Copper Plating on SUS 304 Plate from Acid Bath

Chiba

Doi

2010

AMR

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SUS 304 used. A passive film on surface was needed to remove with anodic electrolytic degreasing in 3.0 mol/dm3 H2SO4 at 298 K. Cu film was electroplated 20 mA/cm2 in 0.5 mol/dm3 CuSO4 and 2 mol /dm3 H2SO4. Current efficiency increased when plating carried in sonication of 28 kHz after plating in stationary state. Particles were destroyed and size became smaller with shockwave pressure. Particles were pressed in pinholes, defects, etc. Surface that was obtained at 28 kHz was smooth and dense compared with other agitation states.

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Electroless deposition of nickel and copper on titanium substrates: Characterization and application

Cited by 17 publications

References 25 publications

Enhanced Corrosion Resistance and Micro-Hardness of Titanium with Electroless Deposition Ni-W-Cr-P Coating

Enhanced Corrosion Resistance and Micro-Hardness of Titanium with Electroless Deposition Ni-W-Cr-P Coating

Electroless nickel–phosphorus deposition on carbon steel CK-75 and study of the effects of some parameters on properties of the deposits

Copper Plating on SUS 304 Plate from Acid Bath

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