Electrodeposition of nickel black solar absorber coatings

John, S.

doi:10.1016/s0026-0576(97)88982-9

Cited by 14 publications

(2 citation statements)

References 6 publications

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“…Among selective coatings absorbing solar energy, with high absorptance (α) and low emittance (ε) values, we can mention different black metals or oxides based on copper, nickel, aluminum, or cobalt, also cobalt-tin and nickel-tin metals-base materials have been reported (1)(2)(3). Most interest has been focused on nickel and chromium-based coatings due to their good optical properties and low cost.…”

mentioning

confidence: 99%

Electrochemical deposition of black nickel solar absorber coatings on stainless steel AISI316L for thermal solar cells

Lira‐Cantú

Morales

Brustenga³

et al. 2005

Solar Energy Materials and Solar Cells

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confidence: 99%

Electrochemical deposition of black nickel solar absorber coatings on stainless steel AISI316L for thermal solar cells

Lira‐Cantú

Morales

Brustenga³

et al. 2005

Solar Energy Materials and Solar Cells

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“…This is a valuable technique for fabricating parts that cannot be produced by other manufacturing methods and can offer an economic alternative to other manufacturing methods. 1,2 Electroforming is widely used for making metal foils (nickel, copper and iron), audio disks, digital recordings, holograms, mesh and tube products. 3 Wax electroforming is used in the preparation of combustion chambers for the engines of launch vehicles, and in the construction of wind tunnel models and high energy chemical and excimer laser components.…”

Section: Introductionmentioning

confidence: 99%

Electroforming of copper by the periodic reversal process

Sankar¹,

Khattak²,

Jain³

et al. 2005

Surface Engineering

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Electroforming is one of the lining methods commonly used for depositing copper on accelerator components. In direct current (dc) processes, organic additives are used to obtain a smooth surface. However, additives reduce the purity of the deposit and cannot be applied to accelerator components. The periodic reversal (PR) process produces superior levelling and structural uniformity in the deposits made without additives. The objective of the present work was to study the effect of process parameters (without additives) on the microstructural characteristics and mechanical properties of the electroformed copper. Electroforming with PR eliminated passive interfaces in the deposit, which otherwise developed with dc. Current density during PR was found to have a great influence on the texture of the deposit. Electroformed copper made by PR with a current density of 2 A dm -2 exhibited significantly lower ductility and higher yield stress than that of annealed oxygen-free high conductivity copper (OFHC); this is attributed to its strong (111) texture. The PR process could be continued for long periods and produced negligible roughness.

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Black nickel electrodeposition from a modified Watts bath

Ibrahim

2005

J Appl Electrochem

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Black nickel coatings were electrodeposited on to steel substrates from a Watts bath containing potassium nitrate. The best operating conditions necessary to produce smooth and highly adherent black nickel were found to be NiSO 4 AE 6H 2 O 0.63 M, NiCl 2 AE 6H 2 O 0.09 M, H 3 BO 3 0.3 M and KNO 3 0.2 M at pH of 4.6, i=0.5 A dm )2 , T=25°C and t=10 min. The modified Watts bath has a throwing power (TP) of 61%, which is higher than that reported, not only for nickel, but also for many other metals electrodeposited from different baths. The potentiostatic currenttime transients indicate instantaneous nucleation. X-ray diffraction (XRD) analysis shows that the black nickel deposit is pure metallic nickel with Ni(111) preferred orientation.

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Electrodeposition of nickel black solar absorber coatings

Cited by 14 publications

References 6 publications

Electrochemical deposition of black nickel solar absorber coatings on stainless steel AISI316L for thermal solar cells

Electrochemical deposition of black nickel solar absorber coatings on stainless steel AISI316L for thermal solar cells

Electroforming of copper by the periodic reversal process

Black nickel electrodeposition from a modified Watts bath

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