Using a nickel electroplating deposition for strengthening microelectrochemical machining electrode insulation

2021 ◽  
Vol 67 ◽  
pp. 77-90
Author(s):  
Jung-Chou Hung ◽  
Hai-Ping Tsui ◽  
Pin-Chia Chen ◽  
Po-Jen Yang
Keyword(s):  
Nickel Electroplating

Effect of bath constituents and superimposed sinusoidal A.C. on nickel electroplating from acidic acetate solutions

1986 ◽  
Vol 29 (4) ◽  
pp. 313-324 ◽  
Author(s):  
S.M. Abd El Wahaab ◽  
A.M. Abd El-Halim ◽  
S.S. Abd El Rehim ◽  
E.A. Abd El Meguid
Keyword(s):  
Nickel Electroplating

scholarly journals Energy-saving integrated ferritisation treatment of nickel-containing wastewater

2019 ◽  
pp. 32-38
Author(s):  
Gennady Kochetov ◽  
DM Samchenko ◽  
BM Yemchura
Keyword(s):  
Electromagnetic Pulse ◽  
Waste Treatment ◽  
Raw Materials ◽  
Technological Parameters ◽  
Wastewater Purification ◽  
Energy Inputs ◽  
Nickel Electroplating ◽  
Environmentally Sound ◽  
Recycle And Reuse ◽  
Kinetics Of

Modern requirements to electroplating waste treatment necessitate development of technologies that would allow on-site recycle and reuse of both treated water and residuals of water processing. The most prospective option for introduction of recourse-saving wastewater purification is associated with application the method of ferritisation. In this connection, the paper presents an advanced ferritisation process for reduction of initial concentrations of heavy metals (HM) in exhausted nickel electroplating electrolytes from 100 mg/L to 0.3 mg/L. Effects of main technological parameters of such wastewater treatment at thermal and electromagnetic pulse methods of activation of the ferritisation process were determined experimentally. Kinetics of removal of nickel and iron ions from aqueous solutions was investigated. Phase compositions and properties of sediments from wastewater treated were studied. The sediments are predominantly characterised by crystalline nanostructures, ferromagnetic properties and chemical stability, supporting opportunities for their environmentally sound utilisation. Proposed comprehensive process for treatment of liquid industrial waste flows would prevent contamination by toxic effluents; ensure rational use of water, raw materials and energy inputs.

Nickel electroplating for high-resolution nanostructures

2015 ◽  
Vol 141 ◽  
pp. 122-128 ◽  
Author(s):  
Kenneth Hili ◽  
Daniel Fan ◽  
Vitaliy A. Guzenko ◽  
Yasin Ekinci
Keyword(s):  
High Resolution ◽  
Nickel Electroplating

High-Aspect-Ratio Electroplated Structures With 2μm Beamwidth

1999 ◽  
Author(s):  
Xiaobin Li ◽  
Siddharth Kiyawat ◽  
Hector J. De Los Santos ◽  
Chang-Jin “CJ” Kim
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Stress Gradient ◽  
Optimization Method ◽  
Nickel Layer ◽  
Driving Voltage ◽  
Aspect Ratios ◽  
Nickel Electroplating ◽  
Electroplating Process ◽  
Micro Structures

Abstract Narrow beamwidth is highly desirable for many micromechanical elements moving parallel to the substrate. A good example is the electrostatically driven flexure structure, whose driving voltage is determined by the width of the beam. This paper presents the process flow and the result of a high-aspect-ratio electroplating process using photoresist (PR) molds. Following a systematic optimization method, PR molds with aspect ratios up to 4.0 were fabricated with a beamwidth of only 2.1μm. Higher aspect ratios, up to 6.8, were achieved using PR double coating technique, with a beamwidth of 2.6μm. Using a Cr/Cu seed layer, nickel electroplating was successfully carried out to translate the PR molds into nickel micro-structures. We observed bend-down of the fully released nickel cantilevers that are over 8μm thick. Further investigation suggested a combined effect of residual stress gradient in the electroplated nickel layer and in-use stiction of the cantilever beams.

Biosorption of nickel ions using fungal biomass Penicillium sp. MRF1 for the treatment of nickel electroplating industrial effluent

2020 ◽  
Author(s):  
Sathyavathi Sundararaju ◽  
Arumugam Manjula ◽  
Vignesh Kumaravel ◽  
Thillaichidambaram Muneeswaran ◽  
Thirumalaisamy Vennila
Keyword(s):  
Fungal Biomass ◽  
Industrial Effluent ◽  
Nickel Ions ◽  
Penicillium Sp ◽  
Nickel Electroplating

Nickel electroplating bath using malic acid as a substitute agent for boric acid

2007 ◽  
Vol 105 (12) ◽  
pp. 34-60 ◽  
Author(s):  
Fumitaka Saito ◽  
Keisuke Kishimoto ◽  
Yuzuru Nobira ◽  
Koichi Kobayakawa ◽  
Yuichi Sato
Keyword(s):  
Boric Acid ◽  
Malic Acid ◽  
Nickel Electroplating

Nanocomposite Layers Obtained by Electro-Co-Deposition: Corrosion and Tribocorrosion Properties

2015 ◽  
Vol 227 ◽  
pp. 243-246 ◽  
Author(s):  
Lidia Benea
Keyword(s):  
Biomedical Applications ◽  
Industrial Applications ◽  
Hybrid Coatings ◽  
Nanostructured Surfaces ◽  
Micro Particles ◽  
Nickel Electroplating ◽  
Dispersed Phases ◽  
Electroplating Process ◽  
Ultra High Molecular Weight ◽  
Biocompatible Coatings

High dispersed nano and micro particles as ceramics (SiC, TiC, WC, Al2O3), polymers (UHMWPE) or bioceramics (TiO2, CeO2, ZrO2) have been deposited by electrochemical method with nichel or cobalt on metallic substrate to obtain novel structured composites, cermet or hybrid coatings with specific properties to be used in industrial or biomedical applications. The industrial applications for metal matrix based nanocomposites are increasing and open a way to biocompatible coatings. electrodeposition is considered to be one of the most important techniques for producing nanocomposites and nanostructured surfaces. Electrodeposition is exceptionally versatile, so that new and exciting applications are still being invented. The paper presents some results regarding the electro-co-deposition of dispersed phases as ZrO2, CeO2, SiC, WC, TiC or polymeric dispersed phases as UHMWPE (ultra high molecular weight polyethylene) during cobalt or nickel electroplating process in view of obtaining new advanced functional surfaces with improved properties to corrosion or tribocorrosion systems.

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