Electroless ternary NiCeP coatings: Preparation and characterisation

Balaraju, J.N.; Chembath, Manju

doi:10.1016/j.apsusc.2012.06.012

Cited by 15 publications

(9 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this context, co-deposition of several elements such as copper, cobalt, tin and cerium has been carried out to modify the original properties of regular Ni-P coatings [7][8][9][10] . Properties such as thermal stability, corrosion resistance, electronic conductivity and wear resistance can be improved by properly controlling bath conditions and composition 11,12 .…”

Section: Introductionmentioning

confidence: 99%

Influence of the Tungsten Content on Surface Properties of Electroless Ni-W-P Coatings

Oliveira

Corrêa

Ett³

et al. 2017

Mat. Res.

View full text Add to dashboard Cite

Ternary Ni-W-P films were produced by electroless deposition using baths with different tungsten concentrations. After deposition, the coated surfaces were annealed at 400°C for 1h. Surface morphology and film composition in the as-plated condition were assessed by SEM and EDS analyses, respectively. The crystalline phases after annealing were investigated by X-ray diffraction (XRD). Nanoindentation tests were performed to assess the mechanical properties of the deposited films. Surface roughness was determined by confocal laser scanning microscopy (CLSM). Friction coefficient was evaluated by reciprocating were tests in a nanotribometer. The corrosion behavior was evaluated by potentiodynamic polarization curves. The results showed that the surface morphology, crystallization behavior and corrosion resistance were affected by the tungsten content in the film. The best corrosion performance was obtained for the ternary films after annealing. Hardness, surface roughness and friction coefficient were dependent of the tungsten concentration in the film.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of the Tungsten Content on Surface Properties of Electroless Ni-W-P Coatings

Oliveira

Corrêa

Ett³

et al. 2017

Mat. Res.

View full text Add to dashboard Cite

show abstract

“…The observations of diminished levels of P (or B) in EL metal deposits and altered EL bath stability are attributed to similar mechanisms. Specifically, any blockage of H 2 PO 2 – (or DMAB or BH 4 – ) binding sites on the surface by adsorbed lanthanides will naturally decrease the chances of P (or B) incorporation into the deposited metal ,,,, per eq (note Boron section) for B and eq and the following reactions for P: Ni 0 + normalH 2 PO 2 − → normalP 0 postfixfalse↓ infix+ NiOH ads + OH − normalH 2 PO 2 − + normalH • ads → normalP 0 postfixfalse↓ infix+ normalH 2 normalO + OH − In addition, the ability of surface-active lanthanides to promote release of H 2 gas from the surface lowers the effective surface concentration of H • ads per eq required for P deposition …”

Section: Elementsmentioning

confidence: 99%

“…204,719,723,733 The observations of diminished levels of P (or B) in EL metal deposits and altered EL bath stability are attributed to similar mechanisms. Specifically, any blockage of H 2 PO 2 − (or DMAB or BH 4 − ) binding sites on the surface by adsorbed lanthanides will naturally decrease the chances of P (or B) incorporation into the deposited metal 719,721,722,728,731 per eq 56 (note Boron section) for B and eq 73 and the following reactions for P:…”

Section: Acs Applied Electronic Materialsmentioning

confidence: 99%

“…Low levels of surface-active lanthanide ions, however, adsorb to these nuclei to slow their growth and extend the useful lifetime of the bath. 719 At higher levels, however, direct electron transfer between H 2 PO 2 − and M II species in solution promoted by the lanthanides 722 and solubility product considerations related to lanthanide ion pairing with other bath components 721 serve to increase concentrations of nuclei and destabilize the bath. These examples clearly illustrate the complexities and synergies afforded by lanthanide additives in EL baths and underscore the need for additional research to fully understand the interactions of bath components and their effects on properties of the EL metal deposits.…”

Section: Acs Applied Electronic Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Electroless Metallization of the Elements: Survey and Progress

Turró

Dressick

2022

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

The electroless plating of metals and their alloys, oxides, and chalcogenides represents a critically important technology for the automotive, aerospace, machine tools, and, especially, the electronics industries. Since the initial efforts involving the plating of industrially important metals, such as Ni, Co, Cu, Ag, and Au, in the mid-20th century, the process has evolved to encompass a growing number of elements. At the same time, this expansion in the palette of accessible metals has enabled progress in these industries and evoked new nonconventional applications. In this review, we collect and survey available electroless processes in aqueous and organic solvent systems for each element organized according to position in the Periodic Table as a resource for the reader. Examples illustrating progress in the field are presented and are described in sufficient detail to be useful and understandable for both the expert and nonexpert. Given the historical importance of electronics as a driver for development of electroless processes, examples are electronics-related where possible. However, we strive to also include examples of applications in nontraditional fields to provide the reader with a sense of generality available for electroless methods. The review closes with an outlook for the field and a challenge to scientists and engineers to adapt electroless processes for new applications to continue the growth of the field.

show abstract

“…Insertion of hard nanoparticles (e.g., C, Ti-Si-C, W, Ti-N, etc.) improve the properties of the alloy [9][10][11][12][13][14][15][16][17][18][19]. As the tungsten content increase the life time of the alloy increase, since Ni-W-P barrier have longer life time than Ni-P barrier [20].…”

Section: Introductionmentioning

confidence: 99%

Structure and Corrosion Behavior of Nano-Crystalline Ni-P Alloy Containing Tungsten

Gooda¹,

Khalifa²,

El-Aziz³

et al. 2021

AJPC

View full text Add to dashboard Cite

The whole world is interested in the metal industry and its permanent development. One of these metals is carbon steel. Therefore, scientists tend to improve the properties of this metal, in this research we have improved the properties of carbon steel through electroless plating process of Ni-P and Ni-W-P alloys. In different industries, electroless nickel-phosphorus Ni-P and nickel-tungsten-phosphorus Ni-W-P deposits have been commonly used as engineering safety coatings. In our research, Ni-P and Ni-W-P were deposited on low carbon steel by using acid bath. To study the improvement of the properties of the coats, microstructure analysis investigated by thin film (XRD), coat's morphology by electron microscope scan (SEM), analyzing the coat by X-ray dispersive energy (EDX) and protection of corrosion of the coats were determined by potentiodynamic polarization measurements in artificial sea water (3.5% NaCl solution). The results indicated that the phases formed from the electroless coating give excellent corrosion resistance of low carbon steel and also indicated that the alloy formed in the presence of tungsten through the electroless bath give higher corrosion protection than that formed without it. As the concentration of tungstate increase in the bath, coat has higher corrosion protection i.e. Ni-W-P III>Ni-W-P II >Ni-W-P I>Ni-P.

show abstract

Electroless ternary NiCeP coatings: Preparation and characterisation

Cited by 15 publications

References 20 publications

Influence of the Tungsten Content on Surface Properties of Electroless Ni-W-P Coatings

Influence of the Tungsten Content on Surface Properties of Electroless Ni-W-P Coatings

Electroless Metallization of the Elements: Survey and Progress

Structure and Corrosion Behavior of Nano-Crystalline Ni-P Alloy Containing Tungsten

Contact Info

Product

Resources

About