Nickel or nickel alloy perforated nanosphere and method for manufacturing same

A technology of perforated balls and nickel alloys, applied in the field of metal or alloy powder, can solve the technical problems of difficulty in obtaining powder and other problems, and achieve the effects of improving specific surface, simple and easy process operation and low cost
CN103752845AInactive Publication Date: 2014-04-30SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2014-04-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of metal or alloy powder, in particular to a nickel or nickel alloy perforated nanosphere and a method for manufacturing the same. The nickel or nickel alloy perforated nanosphere is powdery and contains water, nickel hydroxide, nickel oxide, hydrogen and steam, the aperture of the perforated nanosphere ranges from 20nm to 100nm, and the diameter of the perforated nanosphere ranges from 60nm to 300nm. Compared with the prior art, the nickel or nickel alloy perforated nanosphere and the method have the advantages that the diameter of the nickel or nickel alloy perforated nanosphere reaches a nanometer scale, perforated nano-pores are formed in the nickel or nickel alloy perforated nanosphere, accordingly, the specific surface areas of grains further can be increased, and the electromagnetic performance of nickel or nickel alloy powder can be greatly improved.
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Description

technical field

[0001] The invention relates to the technical field of metal or alloy powders, in particular to nickel or nickel alloy nano-perforated balls and a preparation method thereof. Background technique

[0002] Nickel or nickel alloy powder has been widely used in industrial production as an efficient microwave absorbing material. The electromagnetic properties of nickel or nickel alloy powder are not only affected by the nanonization of the material, but also by the nano-perforation (hollowing) of the material. At present, the preparation of ultra-fine nickel powder is usually prepared by chemical reaction method, and nickel powder in the shape of spherical, granular, fibrous, etc. can be obtained. Making the powder into a hollow or nano-perforated structure further improves the specific surface of the particles, and can be used in industrial production as a high-efficiency microwave absorbing material.

[0003] Micron-scale or nano-scale hollow / nano-perforated ...

Claims

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