Nickel plating bath additive

1995 ◽  
Vol 93 (1) ◽  
pp. 86
Keyword(s):  
Nickel Plating ◽  
Plating Bath

scholarly journals 2-Mercaptobenzimidazole, 2-Mercaptobenzothiazole, and Thioglycolic Acid in an Electroless Nickel-Plating Bath

2015 ◽  
Vol 2015 ◽  
pp. 1-11
Author(s):  
Ahmet Ozan Gezerman ◽  
Burcu Didem Çorbacıoğlu
Keyword(s):  
Waste Water ◽  
Electroless Plating ◽  
Thioglycolic Acid ◽  
Electroless Nickel ◽  
Optical Microscope ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Bath ◽  
Bath Solution ◽  
Microscope Images

The use of three different materials, 2-mercaptobenzimidazole, 2-mercaptobenzothiazole, and thioglycolic acid, was investigated to improve the performance of electroless nickel-plating baths. By changing the concentrations of these materials, sample plates were coated. Optical microscope images were obtained by selecting representative coated plates. From the results of the investigations, the effects of these materials on electroless nickel plating were observed, and the most appropriate amounts of these materials for nickel plating were determined. Moreover, the nickel plating speed observed with the bath solution containing 2-mercaptobenzimidazole, 2-mercaptobenzothiazole, and thioglycolic acid is higher than that in the case of traditional electroless plating baths, but the nickel consumption amount in the former case is lower. In order to minimize the waste water generated from electroless nickel-plating baths, we determined the lowest amounts of the chemicals that can be used for the concentrations reported in the literature.

Effects of Surfactants in an Electroless Nickel-Plating Bath on the Properties of Ni−P Alloy Deposits

2002 ◽  
Vol 41 (11) ◽  
pp. 2668-2678 ◽  
Author(s):  
B.-H. Chen ◽  
L. Hong ◽  
Y. Ma ◽  
T.-M. Ko
Keyword(s):  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Bath

The Influence of Current Density of Electrodeposition on the Electrochemical Properties of Ni-Mo Alloy Coatings

2015 ◽  
Vol 228 ◽  
pp. 269-272 ◽  
Author(s):  
Magdalena Popczyk ◽  
B. Łosiewicz
Keyword(s):  
Current Density ◽  
Room Temperature ◽  
Catalytic Properties ◽  
Sodium Molybdate ◽  
Nickel Chloride ◽  
Intrinsic Activity ◽  
Nickel Plating ◽  
Plating Bath ◽  
Eis Measurements ◽  
Deposition Current Density

The Ni-Mo alloy coatings with a high content of Mo up to 44.5 at.%, were prepared by galvanostatic electrodeposition in the range of deposition current density, jdep, from-30 to-240 mA cm-2 from the nickel plating bath containing potassium pyrophosphate, nickel chloride, sodium molybdate, and sodium bicarbonate. Investigations of hydrogen evolution reaction (HER) were carried out in 5 M KOH solution at room temperature using steady-state polarization and electrochemical impedancy spectroscopy (EIS) measurements. It was found that for the Ni-Mo alloy coatings, the increase in their catalytic properties towards the HER with the increase in the value of jdep of the coatings, was due to the intrinsic activity.

scholarly journals Continuous Nickel Recovery from Spent Electroless Nickel Plating Bath by Solvent Extraction

2011 ◽  
Vol 62 (11) ◽  
pp. 554 ◽  
Author(s):  
Mikiya TANAKA ◽  
Hirochika NAGANAWA ◽  
Sumitaka WATANABE ◽  
Hideaki KUMANO
Keyword(s):  
Solvent Extraction ◽  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Bath ◽  
Nickel Recovery

A ZERO-EMISSION ELECTROLESS NICKEL PLATING BATH

2019 ◽  
Vol 26 (01) ◽  
pp. 1850130
Author(s):  
WANMIN LIU ◽  
QILONG LIU ◽  
LV XU ◽  
MULAN QIN ◽  
JIYONG DENG
Keyword(s):  
Phosphorus Content ◽  
Electroless Nickel ◽  
Raw Material ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Hypophosphorous Acid ◽  
Plating Bath ◽  
Excellent Corrosion Resistance ◽  
Zero Emission ◽  
Better Than

A zero-emission electroless nickel plating bath was investigated, which consisted of nickel hypophosphite, hypophosphorous acid, lithium acetate, citric acid and maleic acid. The bath stability, bath life and plating rate were 68.0[Formula: see text]min, 8 cycles and 13.39[Formula: see text][Formula: see text]m/h, respectively. The Ni–P plating layer showed smooth appearance with lots of small continuous nodules, with 12.23[Formula: see text]wt.% phosphorus content. The electrochemical measurements showed that the deposit exhibited excellent corrosion resistance. All of these properties of the zero-emission plating bath and its deposit were better than those of the popular plating solution and its layer. It is most significant that the spent plating bath can be used directly as a raw material to prepare LiFePO4/C materials, which conforms to the concept of circular economy.

scholarly journals The Electrode Potential of Anodized Coating in the Nickel Plating Bath

1959 ◽  
Vol 10 (6) ◽  
pp. 215-218
Author(s):  
Matsuhei KISHI
Keyword(s):  
Electrode Potential ◽  
Nickel Plating ◽  
Plating Bath

scholarly journals ELECTROLESS NICKEL PLATING: BATH CONTROL

2005 ◽  
Vol 38 (1) ◽  
pp. 339-344
Author(s):  
R. Tenno ◽  
K. Kantola ◽  
H. Koivo
Keyword(s):  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Bath

A High-Speed Nickel Plating Bath for Manufacture of Diamond Tools

2007 ◽  
Vol 359-360 ◽  
pp. 68-72
Author(s):  
Bing Suo Pan ◽  
Yang Yang
Keyword(s):  
Ammonium Sulphate ◽  
High Speed ◽  
Ph Value ◽  
Sodium Formate ◽  
Crystal Form ◽  
Nickel Plating ◽  
Plating Bath ◽  
Diamond Tools ◽  
Plating Solution ◽  
Diamond Bit

To increase the manufacture efficiency of electroplated diamond tools, a nickel plating solution containing ammonium sulphate and sodium formate was investigated. The effects of concentration of ammonium sulphate, sodium formate and pH value on throwing power, covering power, ability to resist Cu2+ contamination and deposit microhardness were studied. Surface topography of deposits was also observed by SEM. Compared to watts bath, the plating solution studied is advantageous in terms of the performance of plating solution, deposit hardness and diamond bit behavior. Ammonium sulphate can refine deposit crystal grains and result in crystal form change.

Effect of Sodium Hypophosphite Content in the Electroplating Bath on the Electrochemical Properties of Ni-P Alloy Coatings

2015 ◽  
Vol 228 ◽  
pp. 246-251
Author(s):  
Magdalena Popczyk ◽  
B. Łosiewicz
Keyword(s):  
Room Temperature ◽  
Intrinsic Activity ◽  
Sodium Hypophosphite ◽  
Nickel Plating ◽  
Plating Bath ◽  
Mechanism And Kinetics ◽  
Constant Phase Elements ◽  
Different Content ◽  
Kinetics Of ◽  
Deposition Current Density

Porous Ni-P alloy coatings were prepared by galvanostatic electrodeposition at the deposition current density ofjdep= -250 mA cm-2from the nickel plating bath of the Watts type containing different content of sodium hypophosphite. Investigations of hydrogen evolution reaction (HER) were carried out in 5 M KOH solution at room temperature.Acimpedance behavior of the electrodes was described using electrical equivalent circuits containing two constant-phase elements (two-CPEs electrode model). The results obtained from the EIS and steady-state measurements allowed to determine the Volmer-Heyrovský mechanism and kinetics of the HER. It was found that for the Ni-P alloy coatings deposited from the galvanic baths after addition of sodium hypophosphite in the amount of 5, 10, 20 and 30 g dm-3, the decrease in their catalytic activity towards the HER is observed due to diminishing of intrinsic activity of the electrodes.

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