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Magnetic microcrystalline glass coating and preparation method thereof

A glass-ceramic and magnetic technology, which is applied in the field of magnetic glass-ceramic coating and its preparation, can solve the problems such as no report of magnetic glass-ceramic coating, achieve excellent chemical stability, widen application fields, and improve additional effect of value

Active Publication Date: 2020-07-31
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no report about magnetic glass-ceramic coating, propose the present invention for this reason

Method used

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  • Magnetic microcrystalline glass coating and preparation method thereof
  • Magnetic microcrystalline glass coating and preparation method thereof
  • Magnetic microcrystalline glass coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] A method for preparing a magnetic glass-ceramic coating, comprising the following steps:

[0063] (1) Add 100g of magnetic glass-ceramic powder, 5g of acrylic resin binder, 100mL of absolute ethanol, and 250g of alumina grinding balls into a 500mL ceramic ball mill jar, and grind on a planetary ball mill for 90 minutes to make a magnetic glass-ceramic slurry , the particle size of the magnetic glass-ceramics in the slurry is less than 400 mesh.

[0064] (2) Immerse the ceramic base material in the magnetic glass-ceramic slurry for 3 minutes, so that the surface of the ceramic base material is evenly coated with the slurry, and dry in an oven at 100°C for 30 minutes; place the dried ceramic base material in a muffle In the furnace, raise the temperature to 450°C at a rate of 5°C / min and keep it warm for 60 minutes to volatilize the binder; then in a nitrogen atmosphere, raise the temperature to 900°C at a rate of 10°C / min and hold it for 10 minutes, then cool down to Af...

Embodiment 2

[0068] A method for preparing a magnetic glass-ceramic coating, comprising the following steps:

[0069] (1) Add 100g of magnetic glass-ceramic powder, 100mL of absolute ethanol, and 250g of alumina grinding balls into a 500mL ceramic ball mill jar, grind on a planetary ball mill for 90 minutes, remove the ball milling balls, and dry at 100°C to obtain a particle size of less than 400 Objective Magnetic glass-ceramic powder.

[0070] (2) The magnetic glass-ceramics micro-powder obtained in step (1) is sprayed and melted onto the surface of the ceramic base material with an oxyhydrogen flame spray gun at 950° C. to obtain a magnetic micro-glass-ceramic coating.

[0071] The photograph of the magnetic glass-ceramic coating that present embodiment obtains is as Figure 6 shown, from Figure 6 It can be seen that a layer of bright black surface layer is evenly coated on the upper surface of the ceramic base material, and the black surface layer is the magnetic glass-ceramic coat...

Embodiment 3

[0074] A preparation method of a magnetic glass-ceramic coating is as described in Example 1, except that in step (2), the temperature is kept at 900° C. for 30 minutes.

[0075] The photograph of the magnetic glass-ceramic coating that present embodiment obtains is as Figure 8 shown.

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Abstract

The invention provides a magnetic microcrystalline glass coating and a preparation method thereof. The magnetic microcrystalline glass coating is prepared by coating magnetic microcrystalline glass powder on the surface of a metal or non-metal matrix material by adopting a thermal spraying method or a slurry coating method. According to the magnetic microcrystalline glass coating prepared by the invention, a novel structure and functional material can be obtained, and the obtained material has dual functions of silicate glass and a magnetic material; the magnetic microcrystalline glass coatingis formed on the surface of metal, nonmetal and other high-temperature-resistant materials, the service life of the material can be prolonged, the use function of the material can be improved, the material has excellent chemical stability such as corrosion resistance and oxidation resistance, meanwhile, the function of absorbing electromagnetic waves is achieved, the application field of the material is widened, and the additional value of the material is increased.

Description

technical field [0001] The invention relates to a magnetic glass-ceramic coating and a preparation method thereof, belonging to the technical field of composite material production. Background technique [0002] Silicate glass-ceramics is a polycrystalline material containing a large number of uniformly distributed microcrystalline phases and glass phases obtained by controlling the glass crystallization process by means of temperature control, composition control, and introduction of nucleating agents. Glass-ceramic At the same time, it has the properties of glass and ceramics, and has the advantages of high chemical stability, high hardness, high mechanical strength, good corrosion resistance, and high thermal stability. It can be widely used in aerospace, marine, chemical and other fields. The preparation of glass-ceramic coatings on the surface of metal and non-metal materials can effectively improve their chemical corrosion resistance, high temperature corrosion resista...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/23C03C10/02C03C6/04C04B41/85
CPCC09D1/00C09D5/23C03C10/0081C03C1/00C04B41/85C04B41/5023C04B41/4539C04B41/0072C04B41/4545
Inventor 刘建安张梅梅沈建兴李呈顺
Owner QILU UNIV OF TECH
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