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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Patent•
27 Oct 2005
TL;DR: In this paper, an electroless nickel black plating film is formed by immersing an article to be plated for a predetermined time in an electrolyte bath containing sulfur-containing compounds.
Abstract: PROBLEM TO BE SOLVED: To provide an electroless nickel black plating film having excellent color tone and wear resistance. SOLUTION: In an electroless nickel black plating film forming method, a plating film is formed by immersing an article to be plated for a predetermined time in an electroless nickel plating bath containing sulfur-containing compounds, the plating film is subjected to the blackening treatment, the black color of the plating film is maintained, and the plating film after maintaining the black color is heat-treated at the temperature in a range of 100-300°C. The electroless nickel black plating film has a diffraction peak at the Bragg angle 2θ = 46-49° in the X-ray diffraction spectrum. COPYRIGHT: (C)2007,JPO&INPIT
13 citations
TL;DR: In this paper, single point diamond turning experiments were conducted on electroless nickel plated substrates at machining scales from the nanometric to the micrometer level, and the machining behavior was investigated through examining the chip morphology and surface texture.
Abstract: Electroless nickel plating is used in mold manufacturing industries as a surface processing technology for providing hard, ductile, wear resistant and corrosion-resistant surfaces. In this work, we conducted single point diamond turning experiments on electroless nickel plated substrates at machining scales from the nanometric to the micrometer level, and the machining behaviour was investigated through examining the chip morphology and surface texture. Emphatically, the effect of cutting fluid was investigated in detail. The results showed that the chip formation mechanisms in dry cuts and wet cuts are significantly different. Dry cuts cause splitting, adhesion, folding and secondary deformation of the chips, leading to surface defects. The results indicated that an effective supply of cutting fluid to the cutting region is essentially important to achieve high quality surfaces.
13 citations
Patent•
17 Jan 2007
TL;DR: In this paper, the reduction precipitation type electroless gold plating liquid is used to directly deposit a gold-plating film on a palladium film, which is favorable for the surface treatment of a conductor circuit of a printed circuit board.
Abstract: PROBLEM TO BE SOLVED: To provide a reduction precipitation type electroless gold plating liquid which can be directly precipitated on a palladium film, and is favorable, in particular, for the surface treatment of a conductor circuit of a printed circuit board. SOLUTION: The reduction precipitation type electroless gold plating liquid which is used to directly deposit a gold plating film on a palladium film consists of an aqueous solution containing a water-soluble gold compound, a reducing agent and a complexing agent, and contains at least one kind of compound selected from a group consisting of formaldehyde bisulfites, rongalit, and hydrazines as the reducing agent. An electroless nickel plating film, an electroless palladium plating film, and an electroless gold plating film deposited by using the reduction precipitation type electroless gold plating liquid are successively deposited on the conductor part of the printed circuit board. COPYRIGHT: (C)2008,JPO&INPIT
13 citations
TL;DR: In this paper, a cheap metallic nickel activation process is proposed and easily performed on porous alumina ceramic, where metallic nickel nanoparticles are deposited on the alumina ceramics and serve as catalytic active centers to trigger electroless nickel plating reaction.
13 citations
TL;DR: In this article, potential causes of premature failure are explored, together with ways of minimising the instances of such failure, by drawing attention to these significant influencing factors, and reference is made in this context to the electroless Nickel Plating of Aluminium connectors.
Abstract: SummaryElectroless Nickel deposits impart desirable surface properties to aluminium and its alloys. The factors affecting the performance of such coatings are reviewed. Potential causes of premature failure are explored, together with ways of minimising the instances of such failure, by drawing attention to these significant influencing factors. Reference is made in this context to the electroless Nickel Plating of Aluminium connectors.
13 citations