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  • Articles  (24)
  • electrodeposition  (24)
  • Springer  (24)
  • Nature Publishing Group
  • 2020-2020
  • 1995-1999  (24)
  • 1970-1974
  • 1945-1949
  • Electrical Engineering, Measurement and Control Technology  (24)
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  • Articles  (24)
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Keywords
Publisher
Years
  • 2020-2020
  • 1995-1999  (24)
  • 1970-1974
  • 1945-1949
  • 2000-2004  (12)
Year
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Ni–Zn–P alloy deposition from sulfate bath: inhibitory effect of zinc (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 1171-1176 
    Details
    ISSN: 1572-8838
    Keywords: alloys ; cyclic voltammetry ; electrodeposition ; electroless deposition ; nickel ; phosphorus ; zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Electroless Ni–Zn–P alloy deposition from a sulphate bath, containing sodium hypophosphite as reducer, was investigated. To increase the plating rate, the deposition parameters were optimized. The effect of process parameters (T, pH and [Zn2+]) on the plating rate and deposit composition was examined and it was found that the presence of zinc in the bath has an inhibitory effect on the alloy deposition. As a consequence, the percentage of zinc in the electroless Ni–Zn–P alloys never reaches high values. Using cyclic voltammetry the electrodeposition mechanism of Ni–Zn–P alloys was investigated. It was observed that the zinc deposition inhibits the nickel discharge and, as a consequence, its catalytic activity on hypophosphite oxidation. It was also found that increase in temperature or pH leads to the deposition of nickel rich alloys.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003426904395
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  • 2
    Electronic Resource
    Electronic Resource
    Deposition of Zn–Co by constant and pulsed current (1997)
    Springer
    Journal of applied electrochemistry 28 (1997), S. 89-95 
    Details
    ISSN: 1572-8838
    Keywords: zinc ; cobalt ; alloy ; electrodeposition ; interphase layer ; electrochemical quartz crystal microgravimetry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The initial stages of both Zn–Co and Zn electrodeposition were investigated by electrochemical quartz crystal microgravimetry (EQCM). The initial electrode mass growth, determined under both pulse and constant current conditions, was much higher than predicted by Faraday's law. This was explained in terms of the precipitation of scarcely soluble compounds of zinc on an electrode surface. The EQCM data confirm that the hydroxide suppression mechanism explains the anomalous Zn and Co codeposition. A nonuniform adsorption of brightener (benzalaceton) on the profiled surface was concluded on the basis of plating distribution investigations. The additive adsorbs to a greater extent on the surface projections.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003206019963
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  • 3
    Electronic Resource
    Electronic Resource
    Chromium electrodeposition using a chromium(iii) glycine complex (1998)
    Springer
    Journal of applied electrochemistry 28 (1998), S. 929-934 
    Details
    ISSN: 1572-8838
    Keywords: chromium(iii) ; electrodeposition ; glycine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract A flow plating system was used to investigate chromium metal deposition from an electrolyte based on Cr(iii) and glycine. The Cr(iii) glycine species suitable for chromium deposition was identified. The chemical reactions occurring during electrolyte preparation and during metal deposition are discussed. Chemical reaction sequences for the predominant reactions are suggested. The influences of the chromium ion concentration, temperature and electrolyte velocity on chromium deposition are considered. The optimum conditions for good quality chromium metal deposition are determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003403203094
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  • 4
    Electronic Resource
    Electronic Resource
    A cyclic voltammetric study of the kinetics andmechanism of electrodeposition of manganese dioxide (1998)
    Springer
    Journal of applied electrochemistry 28 (1998), S. 1235-1241 
    Details
    ISSN: 1572-8838
    Keywords: manganese dioxide ; electrodeposition ; cyclic voltammetry ; multistep mechanism ; disproportionate dissociation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The kinetics and mechanism of electrooxidation of Mn2+ ions to MnO2 (EMD) has been studied in electrolytes comprising MnSO4 and H2SO4 by cyclic voltammetry at 80°C. The voltammogram of a Pt electrode cycled between 0.6 and 1.6V vs SCE exhibits an anodic current peak at about 1.3V vs SCE resulting in the deposition of MnO2 on the electrode, while a cathodic peak appears at 0.8V vs SCE. It is shown that the pair of peaks do not correspond to a single reversible reaction but represent two separate irreversible electrode processes. The cyclic voltammetric peak current for the deposition of EMD is found to be proportional to the square root of Mn2+ ion concentration in the electrolyte and independent of acid concentration. Based on these results, a mechanism for the formation of EMD involving diffusion of Mn2+ ions to the electrode surface, oxidation of Mn2+surface to Mn3+ads, and H2O to OHads as the primary oxidation steps is invoked. Mn3+ads ions dissociate disproportionately into Mn2+ads and Mn4+ads ions at the electrode surface. The Mn2+ads and Mn4+ads ions, respectively, react with OHads and H2O resulting in the formation of EMD.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003472901760
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  • 5
    Electronic Resource
    Electronic Resource
    Electrodeposition of zinc–nickel alloys from ammonia-containing baths (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 1035-1044 
    Details
    ISSN: 1572-8838
    Keywords: ammonia ; cyclic voltammetry ; electrodeposition ; gas–liquid equilibria ; speciation diagrams ; zinc–nickel alloys
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract This paper describes the use of ammonia-containing baths for Zn–Ni alloy electrodeposition. Buffering properties of the ammonia/ammonium couple limit the local change in pH in the vicinity of the electrode surface caused by simultaneous hydrogen evolution. In addition, it is shown that the divalent zinc and nickel species exist in the form of Zn(NH3) 4 2+ and Ni(NH3) 6 2+ complexes over a large pH range. The electrochemistry of the deposition at pH 10 was investigated by galvanostatic experiments and cyclic voltammetry, and compared with deposition from ammonium chloride baths at pH 5. The Ni content in the alloys were found to be 40–60% higher from the ammonia-containing bath than from the acidic baths. Reduction of divalent ions and hydrogen evolution were shown to occur at potentials 250 mV more cathodic than with baths at pH 5; the deposition mechanism may be affected by complexation of the metal cations by ammonia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003610617785
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  • 6
    Electronic Resource
    Electronic Resource
    Structure and thermal stability of zinc–nickel electrodeposits (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 1045-1051 
    Details
    ISSN: 1572-8838
    Keywords: electrodeposition ; structure ; thermal stability ; zinc–nickel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract ZnNi alloys were electrodeposited from a chloride bath on steel substrates. The effect of nickel bath concentration on chemical composition, structure and microstructure of the deposits is demonstrated. From 0 to 13 nickel, the phases obtained do not correspond to that reported on the thermodynamic phase diagram. It is shown that the substitution of zinc by nickel is responsible for the formation of distorted ηd and γd phases corresponding to the supersaturated hexagonal η phase of zinc and to the unsaturated cubic γ phase of Zn–Ni alloy, respectively. Differential scanning calorimetry indicates that the thermal instability of the alloys containing up to 13 wt of nickel, results from the crystallization of the δ phase from the ηd and γd phases at around 200 °C and 250 °C, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003574625112
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  • 7
    Electronic Resource
    Electronic Resource
    On texture formation of chromium electrodeposits (1997)
    Springer
    Journal of applied electrochemistry 28 (1997), S. 141-150 
    Details
    ISSN: 1572-8838
    Keywords: chromium ; electrodeposition ; texture formation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The microstructure, texture and hardness of electrodeposited hard, direct current (DC) chromium and pulsed reversed chromium has been investigated. These investigations suggest that the growth and texture of hard chromium is controlled by inhibition processes and reactions. Further, it has been established that codeposition of Cr2O3 nanoparticles is a general feature of DC chromium electrodeposition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003222523597
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  • 8
    Electronic Resource
    Electronic Resource
    Electrodeposition of indium and zinc on aluminium (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 245-251 
    Details
    ISSN: 1572-8838
    Keywords: aluminium ; electrodeposition ; indium ; zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Zinc and indium were deposited from sulphate and chloride electrolytes onto aluminium electrodes under potentiostatic conditions. The role of the anion, pH, cation concentration, cathodic potential and agitation were investigated. The deposit morphology and composition were studied by SEM and EDX. Potentiodynamic and galvanostatic techniques were also applied for product characterization. Once a critical amount of Zn was deposited preferred In deposition began without agitation. But under rotation or at low cathodic potentials Zn2+ discharge became the prevalent reaction. The results support the earlier hypothesis of the preferential adsorption of Zn ions [1].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003487808354
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  • 9
    Electronic Resource
    Electronic Resource
    pH measurement in the vicinity of a cathode evolving hydrogen gas using an antimony microelectrode (1998)
    Springer
    Journal of applied electrochemistry 28 (1998), S. 617-622 
    Details
    ISSN: 1572-8838
    Keywords: antimony electrode ; microelectrode ; local pH ; electrodeposition ; buffer action ; diffusion layer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract An antimony microelectrode was prepared by quenching a molten Sb–Sb2O3 mixture (2% Sb2O3). The local pH in the vicinity of a cathode evolving hydrogen gas was directly measured using the microelectrode. The local pH during electrolysis of KCl-glycine aqueous solutions was increased by proton consumption; however, the increment decreased with increasing concentrations of glycine, a buffering agent. The diffusion-limiting current density of hydrogen evolution involving proton reduction was controlled by the concentrations of the proton-donating species: protonated-glycine +H3NCH2COOH and H3O+ ions. A plot of the current density against the sum of the concentrations gives a single straight line passing through the origin. The phenomena are discussed in terms of electrodeposition processes of base metals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003254219905
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  • 10
    Electronic Resource
    Electronic Resource
    An investigation into the electrodeposition of Au–Cu-matrix particulate composites (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 687-695 
    Details
    ISSN: 1572-8838
    Keywords: alloys ; composites ; electrodeposition ; gold–copper alloy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The electrodeposition of AuCu/B4C composites from alkaline baths containing free cyanide is described. The electrochemical behaviour of the bath and the metallographic and crystalline structures of the electrodeposited alloys were studied with and without addition of particles. Electrochemical instabilities were observed and their bearing on the structure of both pure matrix and composite electrodeposits is shown and elucidated. The electrochemical and structural conclusions on the AuCu/B4C system are thought to be general for alloy-matrix composite plating with nonconductive particles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003509923754
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  • 11
    Electronic Resource
    Electronic Resource
    Electrodeposition of Co + Ni alloys on modified silicon substrates (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 803-810 
    Details
    ISSN: 1572-8838
    Keywords: alloys ; anomalous deposition ; cobalt ; electrodeposition ; nickel ; silicon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Cobalt+nickel alloys were electrodeposited on different base-silicon substrates since these alloys are interesting for several magnetic device applications. Acid chloride baths were used to obtain magnetic cobalt+nickel layers directly over silicon surfaces, tantalum silicide or metallic seed-layers. Although the initial stages of nucleation were influenced by the kind of substrate, in all substrates nucleation and three-dimensional growth evolving to compact, fine-grained and homogeneous deposition, took place. Preferential deposition of cobalt and anomalous codeposition occurred. Different compositions of the alloy were obtained, as is normal with a solid–solution formation. The cobalt content in the deposit rose with increase in both cobalt(ii) and saccharin concentrations and fell with decrease in the applied potential or current density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003580302490
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  • 12
    Electronic Resource
    Electronic Resource
    Mass transfer and current efficiency for the electrodeposition of silver in fluorosilicic acid solution (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 827-834 
    Details
    ISSN: 1572-8838
    Keywords: current efficiency ; electrodeposition ; fluorosilicic acid ; mass transfer ; silver
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The stripping and electrodeposition of silver in fluorosilicic acid solution are irreversible reactions as indicated by cyclic voltammetry. The rate constant for the intrinsic heterogeneous cathodic deposition of silver was obtained as k C 0 =40.77 exp(1.88−29.43 E C 0′ ) and the diffusion coefficient of the silver ion in fluorosilicic acid solution as 5.17×10−5 cm2 s−1. Theoretical calculations of the concentration of silver ion correlated well with experimental data. The relationship between the diffusion layer thickness and the stirring rate was also obtained. Increasing the stirring rate and temperature, and decreasing the current density and concentration of fluorosilicic acid, caused an increase in the current efficiency for silver deposition on graphite.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003646119602
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  • 13
    Electronic Resource
    Electronic Resource
    Niobium plating processes in alkali chloride melts (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 939-949 
    Details
    ISSN: 1572-8838
    Keywords: electrodeposition ; metal plating ; molten salts ; niobium ; pulse electrolysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Niobium deposits were prepared from alkali chloride melts on nickel and AISI316 stainless steel substrates both by constant current and by pulse current methods. The influence of electrolysis conditions on the nature, morphology and purity of the deposits was investigated by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. No metallic niobium was obtained at temperatures below 500 ∘C. At temperatures between 550 and 650 ∘ C, the deposits were dendritic and non-adherent, whereas pure niobium layers could be obtained at 750 ∘ C. Detailed analysis showed that a large negative overpotential during the pulse current period lead to the presence of suboxides, such as Nb6O, in the metallic phase. Suitable electrolysis conditions gave pure oxygen-free niobium. Cross section analysis showed that on nickel a thin layer of niobium–nickel alloy such as NbNi3, was formed at the metal interface. In contrast no alloys were detected at the niobium-stainless steel interface, where homogenous adherent layers of thickness around 50 μm were obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003501022963
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  • 14
    Electronic Resource
    Electronic Resource
    Electrodeposition of Zn–Co alloy coatingsfrom sulfate–chloride electrolytes (1997)
    Springer
    Journal of applied electrochemistry 27 (1997), S. 1380-1384 
    Details
    ISSN: 1572-8838
    Keywords: corrosion resistance ; electrodeposition ; sulfate–chloride electrolyte ; Zn–Co alloy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The composition, surface morphology and appearance of Zn–Co alloy deposits as a function of current density, electrode potential and Co2+ concentration in the electrolyte was studied. It was found that coatings of good quality with low (1%) Co content are formed at a current density of 0.2Adm−2 and with high (6.5%) Co content at 2Adm−2 from electrolytes containing 1.0M Co2+ under galvanostatic conditions. The potentiodynamic dissolution of coatings with Co content of 6.5% indicates successive deposition of Co enriched phases and a pure Zn phase. The Zn–Co alloys are more corrosion resistant than zinc but are less resistant than cobalt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018425129532
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  • 15
    Electronic Resource
    Electronic Resource
    On unsteady electrochemical coating of a cylinder at moderately large Reynolds number (1997)
    Springer
    Journal of applied electrochemistry 27 (1997), S. 1369-1379 
    Details
    ISSN: 1572-8838
    Keywords: electrodeposition ; electrochemical coating ; forced convection ; cylinder ; mass transport ; numerical solutions ; Reynolds number
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Electrodeposition on a circular cylinder under forced convection was simulated for Reynolds numbers 10 and 200 by numerical solutions of the incompressible Navier–Stokes and mass transport equations. Current density distribution and concentration fields were computed with changing mass transfer and flux rates. Comparisons with earlier numerical and theoretical results are presented for Reynolds number 10. It is shown that the unsteady wake that appears for Reynolds numbers greater than 50 affects the mass transfer from the surface of the cylinder only in an average sense. This result is compared with a heat transfer case, where unsteadiness is much more manifest.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018473012694
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  • 16
    Electronic Resource
    Electronic Resource
    Thermal effects of a laser beam on the electrodeposition of Ni–P alloys (1997)
    Springer
    Journal of applied electrochemistry 28 (1997), S. 80-88 
    Details
    ISSN: 1572-8838
    Keywords: Ni– P alloys ; electrodeposition ; acetate electrolyte ; hypophosphite ; continuous and pulsed laser ; thermal effects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The paper deals with the effects of an incident laser beam on electrodeposition of Ni–P alloys from dilute acetate solutions. The kinetics of separate reductions of Ni2+ and H2PO−2 species were first investigated by linear sweep voltammetry, varying the hypophosphite concentration and the solution temperature: comparison of the kinetically limited current densities of the two reductions suggested that increasing temperature might reduce the significance of P codeposition. This tendency was confirmed by deposition runs carried out at controlled current. Deposition performance was discussed in terms of faradaic yield and deposit properties, namely P content together with the aspect and the structure of the alloys. Use of a continuous or pulsed laser beam was shown to reduce the P content in the deposit at high current densities; in some cases, amorphous structures were replaced by more crystalline forms with assistance of a laser beam.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003253903124
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  • 17
    Electronic Resource
    Electronic Resource
    Rotating cylinder Hull cell study of anomalous codeposition of binary iron-group alloys (1998)
    Springer
    Journal of applied electrochemistry 28 (1998), S. 1251-1260 
    Details
    ISSN: 1572-8838
    Keywords: electrodeposition ; anomalous codeposition ; iron-group alloys ; rotating cylinder Hull cell
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The anomalous codeposition of the iron group metals was investigated using the rotating cylinder Hull (RCH) cell. Single metals and binary alloys of iron, nickel and cobalt were deposited in the RCH cell and the partial current densities were determined as a function of length by position sensitive X-ray fluorescence analysis. The measured overall polarization behaviour was used as a boundary condition for the numerical calculation of the potential distribution along the cylinder using the Laplace equation. By combining the results the partial current density potential curves were established. Experiments performed at different rotation rates confirmed the inhibiting effect of the less noble metal on the deposition of the more noble metal. The inhibiting effect of iron on nickel disappeared when iron reached the limiting current. Strong evidence was found that in binary alloy deposition of iron, cobalt and nickel the reaction rate of the less noble metal is promoted by the presence of the more noble component.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003416328942
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  • 18
    Electronic Resource
    Electronic Resource
    Electrodeposition of doped solid films of phosphomolybdates (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 1471-1473 
    Details
    ISSN: 1572-8838
    Keywords: electrodeposition ; phosphomolybdates ; solid films
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003806808008
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  • 19
    Electronic Resource
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    Electrodeposition of Zn and In onto vitreous carbon (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 1297-1304 
    Details
    ISSN: 1572-8838
    Keywords: electrodeposition ; indium ; vitreous carbon ; zinc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The deposition of indium and zinc on vitreous carbon was studied by voltammetric, galvanostatic and single potentiostatic pulse techniques. The morphology and composition of deposits were analysed by SEM/EDX. The codeposition process occurs without the formation of alloys or intermetallic compounds. On the one hand under stagnant conditions or at low electrode rotation speeds, localized alkalization produced by the hydrogen evolution reaction (HER) favours deposition through an indium hydroxide layer, and deposits with the same atomic percentage of In and Zn are attained. On the other hand, under electrode rotation, preferred deposition of Zn takes place. In this case, the reduction of H+ by the In+ species, intermediate in the In3+ reduction process, diminishes the electrochemical HER on the substrate thus favouring Zn deposition. The higher nucleation rate on metallic deposits previously formed on the vitreous carbon surface is also likely.
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    URL: http://dx.doi.org/10.1023/A:1003777023798
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  • 20
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    Corrosion of cyanide copper deposits on zinc diecastings in acid solutions (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 239-244 
    Details
    ISSN: 1572-8838
    Keywords: acid solution ; copper ; corrosion potential ; cyanide ; electrodeposition ; zinc diecast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The corrosion potential and morphology of copper films deposited from a cyanide solution on zinc diecast were studied in acid solutions similar to those employed in industry for the deposition of a second copper layer. Open circuit potential measurements and gravimetric methods were employed to determine the influence of the copper electrodeposition variables on the corrosion potential. The influence of variables such as the presence or absence of additives, the current density and the copper or cyanide concentrations were studied. The corrosion potential decreased with increasing copper film thickness. Less protection was obtained when a thin copper layer was electrodeposited from a solution without additives. Higher protection for the same thickness was obtained from a solution with high cyanide content. This result is related to the strong interaction between cyanides and the metal surface during the electrodeposition. A smooth surface structure was observed by SEM under these conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003417031495
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  • 21
    Electronic Resource
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    Electrodeposition of PbO2 and Bi–PbO2 on Ebonex (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 313-319 
    Details
    ISSN: 1572-8838
    Keywords: bismuth ; benzoquinone ; Ebonex ; electrodeposition ; electrocatalysis ; lead dioxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Electrodeposition of PbO2 and Bi–PbO2 on Ebonex was carried out under various conditions, and the surfaces and coating/substrate interfaces examined by SEM, XPS and SIMS. Excellent adhesion to Ebonex was obtained with both crystalline and amorphous surfaces. Low plating temperatures resulted in dark grey, bright PbO2 and black, mirror-like Bi–PbO2 surfaces. Extrapolation of electrode lifetime test data indicated corrosion rates of 716 μm yr−1 for PbO2 and 158 μm yr−1 for Bi–PbO2.
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    URL: http://dx.doi.org/10.1023/A:1003461717690
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  • 22
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    Electrodeposition of silver from nitrate solution: Part II. Mechanism of the effect of phosphate ions (1998)
    Springer
    Journal of applied electrochemistry 28 (1998), S. 797-801 
    Details
    ISSN: 1572-8838
    Keywords: electrodeposition ; nitrate solution ; phosphate ion addition ; silver
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The mechanism of compact Ag-film formation by electrolysis from nitrate solution with addition of small amounts of phosphate ions is elucidated. It is shown that the phosphate ions exert their effect by lowering the exchange current density. Consequently, the radii of nucleation exclusion zones also diminishes, thus producing conditions stimulating electrodeposition of continuous thin Ag-film.
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    URL: http://dx.doi.org/10.1023/A:1003450604118
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  • 23
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    Electrolytic Formation and Morphology of Biomimetic Apatite Coatings (1999)
    Springer
    Journal of electroceramics 4 (1999), S. 135-140 
    Details
    ISSN: 1573-8663
    Keywords: apatite ; electrodeposition ; calcium phosphates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Calcium-deficient apatite has been cathodically deposited on SUS stainless steel from an acidic calcium phosphate solution. The resulting apatite porous coatings were characterized morphologically, compositionally and structurally. The porous coatings were modified into dense coatings by immersion in an aqueous supersaturated calcium phosphate solution.
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    URL: http://dx.doi.org/10.1023/A:1009975129238
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  • 24
    Electronic Resource
    Electronic Resource
    Thick-Film Processing for Tl-Oxide Wire and Tape (1998)
    Springer
    Journal of superconductivity 11 (1998), S. 173-180 
    Details
    ISSN: 1572-9605
    Keywords: Thick-Film ; electrodeposition ; textured substrates ; Tl-oxides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Thick-film processing techniques such as electrodeposition, electrophoresis, spray pyrolysis, and ink spraying offer promising and economic (〈$10/kAm) approaches for fabricating high-temperature superconducting (HTS) wire or tape for the Tl-oxide superconductors. The performance of the Tl system exceeds that for the Bi-oxides and offers easier fabrication than YBCO. Scale up, however, may be difficult because of the need for open tape conductors with aligned microstructures. The Tl-oxides, moreover, offer the potential for operation at 77K in practical magnetic fields of 3-5 T, which is supported by measurements on the irreversibility behavior of the Tl-1223 single layer compound with Pb, Bi, and Sr substitution. Recent advances in the development of biaxial textured electrodeposited films on Ag coated single crystal substrates are discussed. This paper will review the merits for a near-term Tl-oxide based conductor for use in HTS electric power applications, currently under development, such as the transformer and transmission cable. Recent results for the buffer layer development that would provide an oriented ceramic layer or template on a flexible textured nickel substrate utilizing the “RABiTS” substrates developed by ORNL will then be discussed with a projection for the cost of a “long length” thick-film process using electrodeposition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022660130028
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