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•
09 Dec 1983
TL;DR: An electroless nickel plating composition characterized by the addition of a polymer formed from a 2-acrylamido or 2-methacryl sulfonic acid monomer is described in this article.
Abstract: An electroless nickel plating composition characterized by the addition of a polymer formed from a 2-acrylamido or 2-methacrylamido alkyl sulfonic acid monomer. The polymer additive increases the rate of deposition from solution, and to a minor extent, improves the appearance of a nickel deposited from the solution.
12 citations
Journal Article•
TL;DR: In this article, the authors report on research in various areas of metal finishing and show that it is a realistic goal to eliminate discharge of spent electroless nickel chemistry and hypophosphite removal.
Abstract: Pollution abatement may come about by improvement in existing processes, replacement of existing chemistries, implementation of process control technologies and the introduction of new metal finishing techniques. This article reports on research in various areas of metal finishing. Modern rinsing strategies must take into account the necessity for complete diffusion of dragged out material, and for recuperation and evaporative recovery techniques, filtration of electrolyzed organic additives is necessary. Advances in electroless nickel chemistry and hypophosphite removal are discussed, showing that it is a realistic goal to eliminate discharge of spent electroless nickel chemistry and hypophosphite removal are discussed, showing that it is a realistic goal to eliminate discharge of spent electroless nickel plating solutions
12 citations
TL;DR: In conclusion, it has been analyzed that the SSOEP baths provided maximum ratio of percent pore densification per unit metal film thickness (PPDδ) and hold the key for further fine tuning of the associated degrees of freedom.
12 citations
TL;DR: In this article, the effect of three activation processes on the direct electroless nickel-phosphorous plating on AZ91D was studied and an optimum activation coating for nickel deposition was developed via twice activations of K4P2O7 and NH4HF2 respectively.
Abstract: In order to optimise the activation process, the effect of three activation processes on the direct electroless nickel–phosphorous plating on AZ91D was studied. The properties of the activation coating and Ni–P coating were characterised with electrochemical tests, SEM and EDX. The results showed that an optimum activation coating for nickel deposition was developed via twice activations of K4P2O7 and NH4HF2 respectively. The first activation in the K4P2O7 solution could clean the surface and remove Mg3(PO4)2 dust produced by pickling. The coating with proper 1·12–1·49 F/O ratio (at-%) composed of MgF2 and MgO or Mg(OH)2 was produced via second activation in NH4HF2 solution. Excess hydrogen produced by Mg with H+ in the plating bath could lead to high porosity and low adhesion of Ni–P coating. A compact Ni–P coating with better adhesion and corrosion resistance was explored in this research.
12 citations
TL;DR: In this article, a green chemistry strategy for the metallization of KMPR photoresist polymer via the diazonium reduction suggests an opportunity to benefit from the incomparable physico-chemical properties of the KMPR by integrating it within MEMS structures.
12 citations