Topic
Electroless nickel plating
About: Electroless nickel plating is a research topic. Over the lifetime, 1593 publications have been published within this topic receiving 14940 citations.
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TL;DR: In this paper, the combination of carbon-coat and electroless nickel plating was found to be effective for decreasing the anodic dissolution of base metal, based on the results of polarization measurement.
Abstract: Low cost metals are quite attractive as bipolar plate of polymer electrolyte fuel cell (PEFC). However, low cost metals easily corrode due to the absence of good passivation films. In order to give high electrical conductivity and corrosion resistance to low cost metals such as carbon steel (S25C), carbon-coat was carried out by plasma-assisted chemical vapor deposition. Carbon-coated samples were characterized by XRD, Raman spectroscopy, and interfacial contact resistance. Based on the results of polarization measurement, the combination of carbon-coat and electroless nickel plating was found to be effective for decreasing of anodic dissolution of base metal.
13 citations
TL;DR: An overview of the existing and emerging technologies for extending the life of electroless nickel bath regenerative technologies is presented in this article, from the standpoint of removal of harmful bath components, loss of valuable bath component, cost-effectiveness, secondary waste generation and ease of implementation.
Abstract: The waste treatment and rejuvenation of spent electroless nickel baths has attracted a considerable amount of interest from electroplating shops, electroless nickel suppliers, universities and regulatory agencies due to the finite life of the baths and the associated waste that the process generates. It is generally accepted that the recycling of electroless nickel solutions is one of the most important challenges facing the electroless nickel-plating industry today. This review presents an overview of the existing and emerging technologies for extending the life of electroless nickel baths. The electroless nickel bath regenerative technologies are appraised from the standpoint of removal of harmful bath components, loss of valuable bath components, cost-effectiveness, secondary waste generation and ease of implementation. The review draws upon an array of academic papers, industrial/company reports, conference proceedings and patents in order to allow the reader to evaluate and compare the different technologies and options for extending the life of electroless nickel-plating solutions.
13 citations
TL;DR: In this article, the diffusion bondability of a superplastic Inconel 718SPF superalloy was enhanced by electroless nickel plating, and the bonding shear strength increased to 70.4 MPa for the same overlap length under the same bonding condition, regardless of the roughness of the surface to be bonded.
Abstract: Although intimate contact can be obtained for diffusion bonding of a superplastic Inconel 718SPF superalloy under a low pressure of 7 MPa, the precipitates formed at the interface retarded achievement of a sound joint. The shear strength was only 41.5 MPa for an overlap length of 12 T (T=1.3 mm, sheet thickness). The diffusion bondability of this Inconel 718SPF superalloy was enhanced by electroless nickel plating. In this situation, the bonding shear strength increased to 70.4 MPa for the same overlap length of 12 T under the same bonding condition, regardless of the roughness of the surface to be bonded. Upon decreasing the overlap length from 12 to 6 T, the bonding strength remained constant.
13 citations
TL;DR: In this article, a high-energy ball milling method was used to construct Li/FeS cells, and the surface of the FeS powder was coated with metallic nickel to obtain high initial discharge capacity of 581 mAh/g-FeS.
Abstract: In order to investigate the electrochemical properties of Li/FeS cell, FeS powder was fabricated by using a high-energy ball milling method. Then, surface of FeS powder was coated with metallic nickel. Nickel coating was conducted by using electroless nickel plating method. Nickel chloride (NiCl2 · 6H2O) was used as the nickel ion source for electroless nickel plating. The effects of nickel coating on the electrochemical properties of FeS electrode for Li/FeS cell were investigated by CV measurement and charge/discharge tests. Then, cells for electrochemical tests were assembled by stacking a lithium anode, separator containing liquid electrolyte, and FeS cathode in turn. From the results, electroless nickel plated FeS electrode showed very high initial discharge capacity of 581 mAh/g-FeS. And also, it showed higher discharge capacity than that of bare FeS electrode until the 29th cycle. Therefore, it is found that metallic nickel gives beneficial effects on enhancing the electrical conductivity of FeS cathode material. 82.47.Cb.
13 citations
Patent•
16 Mar 1981
TL;DR: A method and apparatus for the electroless nickel plating of long bodies is described in this article, including a deep tank capable of supporting at least one long body in a substantially vertical position and immersed in an electroless Nickel plating solution.
Abstract: A method and apparatus (10) for the electroless nickel plating of long bodies (12) including a deep tank (11) capable of supporting at least one long body (12) in a substantially vertical position and immersed in an electroless nickel plating solution (32), a fluid distribution system (18-29) including a plurality of vertically spaced sparger outlets (31, 31') within the tank (11) and means for discharging (30) filtered, heated, plating solution through the sparger outlets (31, 31') generally directed toward or around the long body (12) within the tank (11) to provide directionalized dispersion of the solution (32) throughout substantially the full depth of the tank (11).
13 citations