Electrodeposition and characterization of Ni–Zn–P and Ni–Zn–P/nano-SiC coatings

Pouladi, Sara; Shariat, M.H.; Bahrololoom, M.E.

doi:10.1016/j.surfcoat.2012.10.011

Cited by 45 publications

(19 citation statements)

References 28 publications

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“…those that can be deposited individually and those that can be only codeposited. The former group consists of metals that are much nobler than Ni, like Ag [54][55][56][57] and Cu [58][59][60][61][62][63][64][65][66][67][68]; metals that have similar standard potentials, such as Co [69][70][71][72][73][74][75][76] and Sn [77][78][79][80][81][82][83][84][85]; and metals that are more cathodic, like Cr [86,87], Zn [88][89][90][91][92][93][94][95][96][97][98][99][100] and Mn [101]…”

Section: Deposition Of Ni Alloysmentioning

confidence: 99%

“…coatings with more Zn content own lower P [94,97]. The presence of at least 4 wt.% P is necessary to obtain a crack-free surface [91]. Therefore, more cathodic elements, especially Zn, are not suitable for barrier goals.…”

Section: Ni-crmentioning

confidence: 99%

“…To avoid this precipitation, sodium citrate and ammonium chloride are usually added to the deposition bath[90]. Deposition of Ni-Zn alloys is possible in both acidic[91][92][93]96] and basic[89,90] baths. The anomalous deposition of Zn and Ni ions is reported to happen in baths with pH below 9[90].…”

mentioning

confidence: 99%

“…Moreover, flower-like, spherical, and dendritic morphologies are obtained depending on the pH of the deposition bath[94]. However, Ni-Zn coatings usually present a cracked surface due to the inclusion of the hcp Zn into the fcc Ni[90,91]. They have also a lower corrosion resistance compared to Ni films due to the formation of corrosion cells between Zn and Ni[97].…”

mentioning

confidence: 99%

See 3 more Smart Citations

Cu/Ni/Au multilayers by electrochemistry: A crucial system in electronics - A critical review

Bahramian¹,

Eyraud²,

Vacandio³

et al. 2019

Microelectronic Engineering

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show abstract

Section: Deposition Of Ni Alloysmentioning

confidence: 99%

Section: Ni-crmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Cu/Ni/Au multilayers by electrochemistry: A crucial system in electronics - A critical review

Bahramian¹,

Eyraud²,

Vacandio³

et al. 2019

Microelectronic Engineering

View full text Add to dashboard Cite

show abstract

“…In DC method, the duty cycle is always 100% [5]. Different studies demonstrated that by increasing the current density, microhardness of coated layer decreases [2,[6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Accordingly, current density has an optimum value for nanocomposite coating in electrodeposition process.…”

Section: Introductionmentioning

confidence: 99%

Influence of pulse electrodeposition parameters on microhardness, grain size and surface morphology of Ni–Co/SiO2 nanocomposite coating

et al. 2016

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Ni-Co/SiO 2 nanocomposite coatings and Ni-Co alloy coatings were prepared on steel substrate using direct and pulse electrodeposition methods. X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), X-ray map and energy dispersive X-ray spectroscopy (EDX) were employed to investigate the phase structure, surface morphology, and elemental analysis of coatings, respectively. In high discharge rates, the surface morphology was rough, disordered and gross globular; on the contrary, in the low rates, it was smoother, more ordered and fine globular. Also, effect of electrodeposition parameters such as average current density, pulse frequency and duty cycle on the microhardness and grain size of nanocomposite coatings that produced through the pulse current electrodeposition method have been investigated. By amplifying both duty cycles up to 50% and average current density from 2 to 6 A dm −2 , microhardness increased, while the grain size decreased. But when duty cycle mounted on more than 50% and the average current density went up to 8 A dm −2 , microhardness lessened, while the grain size rose. The optimum value for pulse frequency was about 25 Hz. Results showed that microhardness of nanocomposite coatings which were produced by pulse current method was higher than that of produced by direct current method.

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Introduction of Heavy Micro‐Titanium‐Carbide Particles into Zn–Ni Coatings on Steel During In Situ Brush Electroplating

Guo,

Shen,

Wang

et al. 2023

Adv Eng Mater

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The heavy micro titanium carbide (TiC) particles were first introduced into brush electroplated Zn‐Ni coating (TiC‐0 coating) by using some surfactants here. The effect of TiC concentration of brush electroplating solution on the properties of Zn‐Ni‐TiC coatings was investigated. It was found that the coating hardness and corrosion resistance were enhanced significantly due to the co‐deposition of TiC and an optimal coating with a thickness of 71 μm and adhesive strength of 37.2 MPa was obtained when TiC concentration was 40 (g/L) (TiC‐40 coating). The pencil hardness of TiC‐0 and TiC‐40 were 2H and 5H, respectively. The corrosion resistance time to hot NH4NO3 solution (or inferred neutral salt spray) of TiC‐0 and TiC‐40 were 40 min and 240 min (or 321h and 1995h), respectively. Many pores appeared on the coating due to the incomplete overlap of many batch layers. The TiC content was the factor dominating the coating hardness and corrosion resistance by changing the structure, contact angle and pore diameter of coating, thereby changing the linear polar resistance Rp from potentiodynamic polarization curves, charge transfer resistance Rct or |Z|0.01Hz or polarization resistance from EIS. The content of Zn‐Ni alloy was the factor dominating the adhesive strength of Zn‐Ni‐TiC coating.This article is protected by copyright. All rights reserved.

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Electrodeposition and characterization of Ni–Zn–P and Ni–Zn–P/nano-SiC coatings

Cited by 45 publications

References 28 publications

Cu/Ni/Au multilayers by electrochemistry: A crucial system in electronics - A critical review

Cu/Ni/Au multilayers by electrochemistry: A crucial system in electronics - A critical review

Influence of pulse electrodeposition parameters on microhardness, grain size and surface morphology of Ni–Co/SiO2 nanocomposite coating

Introduction of Heavy Micro‐Titanium‐Carbide Particles into Zn–Ni Coatings on Steel During In Situ Brush Electroplating

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