Method for preparing micro-nano hole cobalt nickel alloy

Abstract

Cobalt nickel alloy is a shape memory alloy which has super-elasticity and high damping characteristic, is remarkable in effects when being applied to the aspects of vibration control and noise control, and can be widely applied to the fields of high and new technologies such as navy sonar, a high-performance sensor, a micro-robot, microwave communication, intelligent devices and the like. The invention relates to a simple chemical method for preparing a series of cobalt nickel porous alloy having the aperture size scale within the micro-nano level; and the test result shows that the alloy is pure cobalt nickel, and the scanning electron micrograph shows that the series of product has a reticular three-dimensional structure and the hole size within the range of about 1-10 microns, so that compared with the porous alloy which is synthesized by other scholars and has the aperture size scale of about 100 microns, the cobalt nickel porous alloy has the aperture size scale which is reduced by one or two order(s) of magnitude. Due to the larger porosity and micro-nano aperture, the cobalt nickel porous alloy is ensured to have the characteristics of light weight and high strength; and due to the hollow linked micro-nano detail structure, the interior of the cobalt nickel porous alloy has larger extra superficial area, and the super-elasticity and the high damping characteristic of the cobalt nickel porous alloy are remarkably improved.

Description

technical field [0001] The invention relates to a preparation method of a novel light-weight and high-strength micro-nanoporous cobalt-nickel alloy material, in particular to a chemical solution method for preparing a cobalt-nickel alloy material with micronanopores. The invention belongs to the technical field of metal alloy material preparation. Background technique [0002] When missiles, launch vehicles and aircraft are in flight, due to engine operation and aerodynamic noise, etc., they will cause severe broadband random vibration and noise environment, and will also stimulate many resonance peaks in the structure and electronic control instrument system, causing fatigue failure of the structure And dynamic instability, so that the accuracy of electronic control equipment is reduced and even malfunctions. Statistics show that about one-third of rocket ground and flight test failures are related to vibration, and poor damping performance of structural materials is an im...

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Problems solved by technology

However, these damping materials are difficult to meet the various needs of aircraft materials in the harsh aerospace environment

[0004] In addition, a method for coating honeycomb metal cobalt or cobalt alloy on the surface of nickel or nickel alloy powder was also invented (application number: 200510110672.9). A method for coating honeycomb metal cobalt or cobalt alloy on the surface of nickel or nickel alloy powder was invented , although the invention has simple process equipment and low cost, and can produce micron-scale and nano-scale cobalt-nickel alloy powders, but they only make alloy powders by coating, and the main purpose is to catalyze organic reactions, and cannot be used as structural materials use

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