High-strength high-plasticity nano nickel and its plating solvent and preparation method

A nano-nickel, high-plasticity technology, applied in the field of nano-materials, can solve problems such as difficult practical applications, and achieve the effects of simple and easy preparation methods, low stress, high strength and plasticity

Inactive Publication Date: 2008-02-13
FUZHOU UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

In order to obtain this structure in electrodeposited nano metal, low temperature annealing must be carried out, but the annealing temperature and time must be strictly controlled, which is difficult for practical application

Method used

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  • High-strength high-plasticity nano nickel and its plating solvent and preparation method

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Embodiment 1

[0023] 1. The composition of the plating solution is: nickel sulfamate (Ni(SO 3 NH 2 ) 2 4H 2 O) 500g / L, manganese chloride (MnCl 2 4H 2 O) 15g / L, nickel chloride (NiCl 2 ·6H 2 O) 20g / L, boric acid (H 3 BO 3 ) 30g / L, sodium lauryl sulfate (C 12 h 25 SO 4 Na) 0.1g / L, saccharin (C 6 h 5 COSO 2 NH 2 ) 2g / L.

[0024] 2. Electrodeposition conditions: current density 8A / dm 2 , the pH value of the plating solution is controlled at 3.5-4, the temperature is controlled at 60°C, and magnetic stirring is performed. The anode is made of high-purity low-sulfur nickel plate (purity is 99.9%), the cathode is made of electropolished stainless steel sheet, and the area ratio of the yin and yang of the immersion solution is 1:3. During the electrodeposition process, sulfamic acid and basic nickel carbonate solution are used to adjust the pH value of the plating solution. Electrodeposition obtains a coating with a thickness of 200 μm, after which the coating is peeled off mecha...

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Abstract

The invention provides a high strength and high plasticity nano nickel, and a bath solution and a preparation method of the nano nickel. The bath solution consists of nickel sulfamic acid, manganese chloride, nickel chlorite, boric acid, sodium dodecyl sulfate and saccharin; the preparation method is to adopt a DC current deposition method to conduct electric deposition in a nickel aminosulfonate alloy to prepare the nano nickel. The tensile strength of the nano nickel prepared by the invention is 1200 to 1300MPa, the total elongation at break is 12 to 13percent, and the grain size range of the nano nickel is between 10 and 100mm. Compared with the nano nickel prepared by traditional melting methods, the nano nickel prepared by the invention has obviously higher strength, and obviously improved plasticity compared with the general nano nickel prepared by the currently reported electric deposition methods. The invention has advantages of adoption of nickel sulfamic acid as the main salt, has low stress, quite large current capable of being added in plating, easiness in obtaining good plating layer surface quality, etc. The invention is applicable in preparing high strength and high plasticity nano nickel with high efficiency.

Description

technical field [0001] The invention belongs to the field of nanometer materials, and more specifically relates to a high-strength and high-plasticity nano-nickel, a plating solution and a preparation method thereof. Background technique [0002] Compared with traditional microcrystalline metal materials with the same composition, nano-metal materials have high strength and hardness. People have done a lot of research on the synthesis and preparation of nanomaterials, and put forward a variety of methods. Among them, the electrodeposition method has the advantages of simple process, less investment in equipment, high density of prepared nanomaterials, and easy realization of bulk production. After improving the ordinary Watt-type nickel plating solution, adding a small amount of additives (saccharin, coumarin, etc.), nano-nickel can be obtained by electrodeposition. The characteristic of this nano-nickel is that the grain size is relatively uniform, and the average grain si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/12
Inventor 戴品强许伟长伍文杰项忠楠
Owner FUZHOU UNIV
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