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.

scholarly journals Development of Boric Acid Free High Speed Electro Nickel Plating Bath

2012 ◽  
Vol 63 (1) ◽  
pp. 41 ◽  
Author(s):  
Ikuhiro KATO ◽  
Yohei WAKUDA ◽  
Katsuhiko TASHIRO ◽  
Yasushi UMEDA ◽  
Hideo HONMA
Keyword(s):  
Boric Acid ◽  
High Speed ◽  
Nickel Plating ◽  
Plating Bath

Electrodeposition of Fe-Diamond Composite Material for Manufacture of Diamond Tools

2010 ◽  
Vol 37-38 ◽  
pp. 398-401 ◽  
Author(s):  
Bing Suo Pan ◽  
Xiao Hong Fang ◽  
Yong Chang Tian
Keyword(s):  
Ammonium Chloride ◽  
Current Density ◽  
Ph Value ◽  
Matrix Material ◽  
Chloride Concentration ◽  
Cathodic Current Density ◽  
Iron Deposit ◽  
Cathodic Current ◽  
Diamond Tools ◽  
Diamond Bit

For machining of hard and brittle materials, iron electrodeposit is a kind of matrix material with potential advantages for manufacture of diamond tools. Aiming at the problem of difficult codeposition of diamond in iron deposit, this paper adopts orthogonal design of experiment to study the effects of solution pH value, cathodic current density, alkylphenol polyoxyethylene (10) ether (OP-10) concentration and ammonium chloride concentration on codeposition of diamond, and then Fe-based diamond bits were fabricated and drilling tests in granite were carried out. The results show that pH value, cathodic current density, OP-10 concentration and ammonium chloride concentration all have statistically significant effect on codeposition of diamond in iron deposit, whose contributions to the variance of the weight of codeposited diamond are 37.45%, 32.05%, 13.13% and 12.38%, respectively. The result of drilling test indicates that Fe-based diamond bit can achieve much higher penetration rate than common Ni-based diamond bit.

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.

Optimization of High-Speed Electrolytic Plating of Copper Pillar to Achieve a Flat Top Morphology and Height Uniformity

2020 ◽  
Vol 2020 (1) ◽  
pp. 000150-000155
Author(s):  
Raihei Ikumoto ◽  
Yuki Itakura ◽  
Shinji Tachibana ◽  
Hisamitsu Yamamoto
Keyword(s):  
Polarization Curve ◽  
High Speed ◽  
Organic Additive ◽  
Additive Concentration ◽  
Plating Bath ◽  
Pillar Height ◽  
Large Size ◽  
Cu Pillar ◽  
The Ideal

Abstract Cu plating bath for high-speed electrodeposition of Cu pillar was designed in consideration of a flat top morphology of pillar and a pillar height uniformity. An ideal polarization curve was assumed for the flat top morphology. To obtain the ideal polarization curve, an effect of organic additive concentration and solution agitation on the polarization curve were investigated. The basic bath components were optimized considering a Wagner number to improve pillar height uniformity. To confirm the pillar top morphology and the pillar height uniformity, a 300 mm diameter wafer was plated with Cu at 20 A/dm2. As a result, improved pillar top morphology and pillar height uniformity were obtained. The optimized plating bath was applied to the plating of large-size panel of 415 × 510 mm.

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 Studies on Composition of Caustic Alkaline Electroless Nickel Plating Solution

1964 ◽  
Vol 15 (4) ◽  
pp. 135-138
Author(s):  
Satoru ISHIBASHI ◽  
Osamu TAKANO ◽  
Masaoki YOSHIDA ◽  
Tooru SHIMIZU
Keyword(s):  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Solution
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