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•
02 Jun 2011
TL;DR: In this article, the authors proposed a treatment method for electroless nickel plating waste liquid, which causes little waste and low environmental load, requires no large-scaled equipment or space, and is capable of recovering nickel sulfate and reproduces liquid including the nickel sulfates.
Abstract: PROBLEM TO BE SOLVED: To provide a treatment method for electroless nickel plating waste liquid, which causes little waste and low environmental load, requires no large-scaled equipment or space, and is capable of recovering nickel sulfate and reproduces liquid including the nickel sulfate from electroless nickel plating waste liquid for reuse in simple operation for a short time at low cost. SOLUTION: Phosphorous acid nickel is picked out from electroless nickel plating waste liquid as settlings, and the phosphorous acid nickel is treated with sulfuric acid to be crystallized as nickel sulfate and the nickel sulfate is recovered by magnetic separation. COPYRIGHT: (C)2011,JPO&INPIT
3 citations
Journal Article•
TL;DR: A guide pratique pour the preparation of plaques d'acier, d'ACier inoxydable, de cuivre et d'aluminium as mentioned in this paper.
Abstract: Guide pratique pour la preparation de plaques d'acier, d'acier inoxydable, de cuivre et d'aluminium
3 citations
TL;DR: In this article, the authors applied the EFFTOM -Nickel Method for electroless nickel plating on ductile cast iron samples and measured the wear resistance, thickness and microhardness of the samples before and after thermal processing at 290°C, 6 h.
Abstract: Electroless nickel (Ni) and composite nickel coatings (Ni+TiN) are investigated in this study. EFFTOM -Nickel Method for electroless nickel plating is applied. Nanosized TiN particles (50nm) are used as a strengthening material. The coatings are plated on ductile cast iron samples. The wear tests of the coatings by the classic model TABER ABRASER “disc to disc” are carried out. The observation of the samples microstructure by means of an optical metallographic microscope GX41 OLIMPUS and the microhardness measurements by Knoop Method are performed. The wear resistance, the thickness and microhardness of the samples before and after thermal processing at 290°C, 6 h are defined.
3 citations
Patent•
04 Aug 2000
TL;DR: In this paper, a Schottky barrier diode capable of solder connection by forming a barrier electrode constituted by electroless nickel plating is presented. But the barrier electrode is not connected with an outer terminal via a solder layer 25.
Abstract: PROBLEM TO BE SOLVED: To obtain a Schottky barrier diode capable of solder connection by forming a barrier electrode constituting a Schottky barrier diode by using electroless nickel plating. SOLUTION: This diode consists of a first conductivity type semiconductor layer 1, a barrier electrode 21 which is formed on the main surface of the semiconductor layer 1 by nickel plating, and a second conductivity type semiconductor region 2 which is formed around the barrier electrode 21 and in ohmic contact with it. The barrier electrode formed by nickel plating is connected with an outer terminal via a solder layer 25, and a Schottky barrier diode is manufactured. In this manufacturing method, the barrier electrode 21 is formed by electroless plating in which dimethylamine borane is used as reducing agent.
3 citations
Journal Article•
TL;DR: In this article, the effects of MgF2 in Ni-P coatings were emphatically discussed and the results showed that a magnesium oxide layer is formed after acid etching, and the potential differences of different phases of magnesium alloys are reduced due to the presence of oxide layer.
Abstract: Pretreatment of magnesium alloy surface was studied.Effects of MgF2 in Ni-P coatings were emphatically discussed.The results show that a magnesium oxide layer is formed after acid etching,and the potential differences of different phases of magnesium alloys are reduced due to the presence of oxide layer.MgF2 layer is formed after activation which can protect magnesium substrate from corrosion of plating bath.The elemental distribution of cross section of Ni-P coating was investigated by scanning electron microscopy.The MgF2 layer exists between the magnesium alloy substrate and the Ni-P coating.Excessive activation can raise the porosity of Ni-P coating,and the potentiodynamic polarization indicates that excessive activation can lead to deterioration of corrosion resistance of the Ni-P coating.
3 citations