Production of electrolytic nickel and nickel–phosphorous composite layers containing titanium

Serek, Andrzej; Budniok, A.

doi:10.1016/s1567-1739(02)00062-7

Cited by 24 publications

(8 citation statements)

References 4 publications

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“…The increase in incorporated ceramic, polymeric or metallic particle fraction in Ni composite coatings with increasing particle concentration, with constant current density and stirring rate, has been shown by several authors [3,6,[10][11][12]. As the hydrodynamic conditions used in this work were sufficient to maintain the Nb powders in suspension, higher particle concentration provided more collisions of particles against the cathode, resulting in an increase in Nb incorporation.…”

Section: Resultsmentioning

confidence: 58%

“…Stirring rate 400 and 550 rpm Cathodic current density 10, 20 and 40 mA cm -2 composite layers when compared to pure Ni has been observed by others authors [3,12,13,15,16,21]. This characteristic may be related to both the large size of the Nb particles used and the significant nucleation rate of new crystals on the particle surface before it is covered by the growing surrounding Ni layer.…”

Section: Resultsmentioning

confidence: 61%

“…Ceramics (SiC [1][2][3][4][5][6], Al 2 O 3 [7,8], TiO 2 [7,9], ZrO 2 [7]), polymers (polyethylene [10], polytetrafluorethylene [11]), metals (Ti [12,13], Al [14]) and other materials (hydroxyapatite [15], diamond [16]) have been co-electrodeposited with nickel in order to improve properties, such as hardness, wear resistance, lubrication, corrosion resistance and catalytic properties. The co-deposition consists in electrolyzing a nickel plating bath containing suspended solid particles using a suitable cathode material.…”

Section: Introductionmentioning

confidence: 99%

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Deposition and characterization of nickel–niobium composite electrocoatings

Robin

Fratari

2007

J Appl Electrochem

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Ni-Nb composite electrocoatings were obtained on carbon steel from Watts bath, containing suspended 20 lm size niobium powders. The effect of cathodic current density, electrolyte stirring rate and concentration of Nb particles in the bath on the deposit morphology and texture, volume fraction of co-deposited Nb particles and microhardness was investigated. The Ni-Nb composite layers presented a rough morphology with randomly oriented Ni grains, whereas pure Ni coatings obtained under the same experimental conditions were smooth and showed highly preferred orientation in the [110] or [100] direction. Stirring rate of the electrolyte and concentration of Nb particles in the bath are the main parameters affecting the incorporation of Nb particles. The Nb incorporated volume fraction was 11-14%, 17-19%, 27-32% and 34-37% for the 20 g L -1 Nb/550 rpm, 20 g L -1 Nb/400 rpm, 40 g L -1 Nb/400 rpm and 40 g L -1 Nb/550 rpm conditions, respectively. The microhardness of the Ni-Nb composite coatings obtained at 20 and 40 mA cm -2 was higher than that of pure Ni layers, due to grain refining. Incorporation of Nb particles in Ni coatings improved the corrosion resistance of the deposits in NaCl and H 2 SO 4 solutions.

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Section: Resultsmentioning

confidence: 58%

Section: Resultsmentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%

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Deposition and characterization of nickel–niobium composite electrocoatings

Robin

Fratari

2007

J Appl Electrochem

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“…Serek and Budniok [51] prepared composite Ni + Ti and Ni-P + Ti layers by simultaneous electrodeposition of nickel and titanium onto a steel substrate from a Watts bath under galvanostatic conditions. They examined the influence of the titanium powder content on the deposition process of the composite layers.…”

Section: Embedded Particlesmentioning

confidence: 99%

Recent developments in the electrodeposition of nickel and some nickel-based alloys

Oriňáková¹,

Turoňová²,

Kladeková³

et al. 2006

J Appl Electrochem

207

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The numerous theoretical and practical studies of the electrodeposition of nickel and its binary and selected ternary alloys with copper and cobalt over the last 10-15 years are reviewed. The reported mechanisms of the electrodeposition processes and accompanying evolution of hydrogen are considered. The complex influence of different bath compositions, pHs, current densities or potential ranges and temperature on the formation of single or multiple deposition layers are compared. The determination of the structure and morphology of the deposits on different substrates, including solid surfaces and particulate materials, using a range of analytical techniques are reported.

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“…Electrochemical codeposition of Ni-Ti in composite coatings has been shown to impart many useful properties. Serek and Bundniok [14] reported improved mechanical properties of a steel substrate by Ni-Ti composite coating. The results showed rough metallic coating with very good adhesion to the substrate.…”

Section: Introductionmentioning

confidence: 99%

Morphology and Hardness of Electrochemically-Codeposited Ti-Dispersed Ni-Matrix Composite Coatings/ Morfologia I Twardość Elektrochemicznie Współosadzonych Powłok Kompozytowych Ni-Ti

Srikomol

Janetaisong

Boonyongmaneerat

et al. 2014

Archives of Metallurgy and Materials

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The effects of current density and Ti particle loading in a plating bath on the morphology and hardness of Ni-Ti composite coatings via an electrochemical-codeposition process were investigated. The Ti-reinforced Ni-matrix composite coatings were codeposited on copper substrates using a Ni-ion electrolytic solution stably suspended with -45 micron Ti particles. Within the current studied range, the coatings' Ti contents are in the range between 46 and 62 at.%. The morphology appeared to vary with current density. Structures of the Ni-Ti composite coatings produced under low current density conditions revealed denser structures, which is in contrast to the more porous structures noted in the coatings produced under high current density. An initial increase of current density from 100 to 150 mA/cm 2 also tends to raise Ti coating content. The reinforcement of Ti particles in the coatings also increased their hardness, which is attributed to the possible role of the embedded Ti particles in hindering matrix deformation. The effect of Ti loading on the coating's Ti contents was not significant under conditions used in the present study.Keywords: electrochemical codeposition, composite coatings, Nickel-Titanium, morphology, hardness Badano wpływ gęstości prądu i zawartości cząstek Ti w kąpieli galwanicznej na morfologię i twardość elektrochemicznie współosadzanych powłok kompozytowych Ni-Ti. Kompozytowe powłoki niklowe zbrojone cząstkami Ti zostały współosadzone na powierzchniach miedzianych z kąpieli elektrolitycznej zawierającej jony Ni i 45 mikronowe cząstki Ti tworzące stabilną zawiesinę. Zawartość Ti wbudowanego w powłoki wahała się w granicach 46-62 at.%. Morfologia powłok zmienia się wraz ze zmianą stosowanej gęstości prądu. W przypadku kompozytowych powłok Ni-Ti wytwarzanych przy niskich gęstościach prądu stwierdzono bardziej zwarte struktury, w przeciwieństwie do bardziej porowatych struktur stwierdzonych w przypadku powłok wytwarzanych przy wysokich gęstościach prądu. Początkowy wzrost gęstości prądu od 100 do 150 mA/cm 2 również powoduje podniesienie zawartości Ti w powłokach. Ze wzrostem zawartości Ti wzrasta również twardość powłoki, co można przypisać roli osadzonych cząstek Ti utrudniających odkształcenie osnowy. W warunkach stosowanych w tej pracy wpływ zawartości Ti w kąpieli na zawartość Ti w powłokach nie był znaczący.

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Production of electrolytic nickel and nickel–phosphorous composite layers containing titanium

Cited by 24 publications

References 4 publications

Deposition and characterization of nickel–niobium composite electrocoatings

Deposition and characterization of nickel–niobium composite electrocoatings

Recent developments in the electrodeposition of nickel and some nickel-based alloys

Morphology and Hardness of Electrochemically-Codeposited Ti-Dispersed Ni-Matrix Composite Coatings/ Morfologia I Twardość Elektrochemicznie Współosadzonych Powłok Kompozytowych Ni-Ti

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