Coating material and preparation method thereof

A film layer and base material technology, applied in the field of coating materials and its preparation, can solve the problems of differentiation of coating effects, difficulty in accurately adjusting optical constants, etc., and achieve the effect of reducing dull color

Pending Publication Date: 2021-12-21
BYD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problems that the existing coatings on different materials have serious differences in coating effects and it is difficult to accurately adjust the optical constants, the invention provides a coating material and a preparation method thereof

Method used

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  • Coating material and preparation method thereof
  • Coating material and preparation method thereof
  • Coating material and preparation method thereof

Examples

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preparation example Construction

[0061] Another embodiment of the present invention provides a method for preparing the coating material as described above, comprising the following steps:

[0062] Place the substrate under vacuum conditions, bombard the Nb target with an ion source, deposit and form a Nb layer on the surface of the substrate, and control the thickness of the Nb layer to ≥140nm;

[0063] Based on the Nb layer, bombarding the targets corresponding to the high-refraction layer and the target material corresponding to the low-refraction layer by ion bombardment and feeding auxiliary gas to form alternate high-refraction layers and low-refraction layers on the Nb layer.

[0064] In a preferred embodiment, the Nb layer, high or low refractive layer is formed using ion beam assisted deposition (IBAD), the target is made of the metal to be deposited, and oxygen or nitrogen is implanted into the target bombarded with the ion beam when required material combination. Therefore, the sputtering process ...

Embodiment 1

[0069] This embodiment is used to illustrate the coating material disclosed in the present invention and its preparation method, including the following steps:

[0070] SiO 2 Obtained by sputtering Si target coating method; elemental Nb and Nb 2 o 5 Obtained by sputtering Nb targets.

[0071] a. Put the aluminum alloy substrate on the fixture of the sputtering machine, and vacuumize;

[0072] b. The vacuum degree of the chamber to be coated reaches 3×10 -3 At Pa, pass in argon gas, and after the gas is stable, turn on the ion source, and perform ion cleaning on the surface of the substrate for 2 to 5 minutes;

[0073] c. The ion source continues to work, and at the same time turn on the sputtering power supply of the Nb target with a power of 10KW and a thickness of 184nm to complete the first coating of the Nb layer;

[0074] d. Turn on the oxygen of the ion source, the flow rate is 200sccm, continue to turn on the power supply of the Nb target, and deposit Nb 2 o 5 Th...

Embodiment 2

[0082] This embodiment is used to illustrate the coating material disclosed in the present invention and its preparation method, including most of the operating steps in Example 1, the difference being:

[0083] The base material is selected from glass, and the obtained coating materials such as figure 2 shown.

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Abstract

In order to solve the problems that coating effects on existing different materials are seriously differentiated and optical constants are difficult to debug accurately, the invention provides a coating material. The coating material comprises a base material, an Nb layer and a color layer, wherein the Nb layer is formed on the surface of the base material, the color layer is formed on the surface, deviating from the base material, of the Nb layer, the thickness of the Nb layer is larger than or equal to 140 nm, the color layer comprises a plurality of low refraction layers and a plurality of high refraction layers, and the low refraction layers and the high refraction layers are alternately stacked. Meanwhile, the invention further discloses a preparation method of the coating material. The coating material provided by the invention can avoid the influence of the optical characteristics of different base materials on the optical parameters of the final coating, and achieves the purpose of color adjustability.

Description

technical field [0001] The invention belongs to the technical field of material coating, and in particular relates to a coating material and a preparation method thereof. Background technique [0002] In most cases, the optical coating process is applied to products with high transmittance and small absorption. Because the optical coating technology is based on the principle of light interference, that is, the use of light of different wavelengths to interfere with the reflected light and transmitted light on the surface of the film, between the film layers, and between the film layer and the substrate, so as to achieve specific wavelength light on the substrate. to achieve a specific reflectance or transmittance. Therefore, the optical constants (reflectance, transmittance, extinction coefficient, etc.) of the substrate must be measurable and stable. [0003] If the coating process is applied to other types of opaque materials, the limitations brought by the above conditi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/08C23C14/10C23C14/16C23C14/18C23C14/20C23C14/46G02B5/28G02B1/10
CPCC23C14/0015C23C14/083C23C14/10C23C14/165C23C14/185C23C14/205C23C14/46C23C14/0036G02B5/285G02B1/10
Inventor 李超刘玉阳黎原王继厚马兰
Owner BYD CO LTD
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