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A method for preparing the surface of superhydrophilic amorphous alloy by nanosecond laser irradiation

An amorphous alloy, laser irradiation technology, used in nanotechnology, nanotechnology, nanotechnology and other directions for materials and surface science, can solve the problems of expensive femtosecond lasers, low price of nanosecond lasers, etc., and achieve processing costs. Low, simple processing method, high efficiency

Active Publication Date: 2022-03-25
JILIN UNIV
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Problems solved by technology

However, femtosecond lasers are too expensive to be used in industrial production, while nanosecond lasers are relatively cheap and suitable for industrial applications

Method used

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  • A method for preparing the surface of superhydrophilic amorphous alloy by nanosecond laser irradiation
  • A method for preparing the surface of superhydrophilic amorphous alloy by nanosecond laser irradiation
  • A method for preparing the surface of superhydrophilic amorphous alloy by nanosecond laser irradiation

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Embodiment

[0026] The following is based on a typical zirconium-based amorphous alloy (Zr 41.2 Ti 13.8 Cu 12.5 Ni 10 be 22.5 ) surface to prepare a super-hydrophilic surface as an example, in conjunction with the following examples to further illustrate the implementation process and beneficial effects of the present invention.

[0027] An amorphous alloy sample with a size of 20mm×20mm and a thickness of 10mm was firstly polished, ultrasonically cleaned with absolute ethanol, and dried to obtain a pretreated amorphous alloy sample. The cleaning temperature is 50°C, and the single cleaning time is 5 minutes.

[0028] In the air environment, single-point nanosecond laser irradiation is performed on the surface of the above-mentioned pretreated amorphous alloy sample. The parameters of nanosecond laser irradiation are: the laser energy density is 2.99J / cm 2 , the laser pulse duration is 5ms. Using scanning electron microscopy and laser confocal microscopy to observe the wrinkled stru...

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Abstract

The invention relates to a method for preparing the surface of a superhydrophilic amorphous alloy by nanosecond laser irradiation, and belongs to the technical field of laser surface modification. By irradiating the surface of the amorphous alloy with nanosecond laser in the air atmosphere, the micro-nano microstructure is prepared on the surface of the amorphous alloy, and the hydrophilicity of the surface is improved. Further, the distance between the irradiation points and the irradiation time and energy density of the laser pulse are controlled to prepare the surface of the superhydrophilic amorphous alloy. The micro-nano structure includes wrinkle structure and nanoparticles. The method provided by the invention is simple, efficient and practical, and the preparation process is not affected by the environment and sample size, and can be applied to the preparation of superhydrophilic amorphous alloy surfaces.

Description

technical field [0001] The invention relates to the technical field of laser surface modification, in particular to a method for preparing the surface of a superhydrophilic amorphous alloy by nanosecond laser irradiation, which can prepare the surface of the superhydrophilic amorphous alloy. Background technique [0002] Due to its long-range disordered structure, amorphous alloys exhibit better mechanical, physical and chemical properties than conventional crystalline materials, such as high hardness, strength, elasticity, low elastic modulus, and excellent soft magnetic properties. Good wear resistance and corrosion resistance have attracted continuous attention from the scientific and industrial circles. The application of superhydrophilic surfaces is very wide, especially in the aspect of self-cleaning, commercial products have appeared, and superhydrophilic surfaces have a certain degree of application in optics, biomedicine, and the design of enhanced heat transfer sur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F3/00C21D10/00B82Y40/00B82Y30/00
CPCC22F3/00C21D10/00B82Y40/00B82Y30/00
Inventor 黄虎刘翰林钱永峰张帝王超张洪洋
Owner JILIN UNIV
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