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Conformal ceramic metamaterial and preparation method thereof

A technology of metamaterials and ceramic powders, applied in the field of conformal ceramic metamaterials and their preparation, can solve problems such as the inability to meet high-strength properties, and achieve the effect of improving strength and good wave-transmitting properties

Inactive Publication Date: 2012-10-31
KUANG CHI INNOVATIVE TECH
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  • Claims
  • Application Information

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Problems solved by technology

Metamaterials made of low-dielectric constant and low-loss ceramics have good wave-transmitting performance and high-temperature resistance, but they cannot meet high-strength performance.

Method used

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  • Conformal ceramic metamaterial and preparation method thereof
  • Conformal ceramic metamaterial and preparation method thereof

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] A preparation method of a conformal ceramic metamaterial, the preparation method comprising the following steps:

[0024] a. Preparation of green body: will contain ceramic powder (such as cordierite, alumina or non-oxide Si 3 N 4 etc.) and the suspension of the organic system are degassed and prepolymerized to obtain a slurry, which is poured into the first mold and inserted into the core of the mold, and after curing, a green body formed by gel injection molding is obtained;

[0025] The specific process is: dissolve the organic monomer and cross-linking agent in water, and add water-...

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Abstract

The invention provides a conformal ceramic metamaterial and a preparation method of the conformal ceramic metamaterial. The method comprises the following steps of: degassing and pre-polymerizing suspension comprising ceramic powder and an organic system to obtain slurry, pouring the slurry into a first mold, and curing to obtain a green body; preparing the ceramic powder into ceramic slurry and casting into a green ceramic chip, and preparing a metal microstructure on the green ceramic chip through a screen printing technology; attaching the prepared green ceramic chip comprising the metal microstructure to the outer surface of the green body, and obtaining the green body with the metal microstructure; pouring the slurry into a second mold, inserting the green body with the metal microstructure, and curing to obtain a blank with a conformal structure comprising the metal microstructure; and performing degluing and sintering the blank with the conformal structure comprising the metal microstructure, thus obtaining the conformal ceramic metamaterial. The curved conformal ceramic metamaterial is prepared by organically combining a gel-casting molding method and a low temperature co-fired ceramic (LTCC) or high temperature co-fired ceramic (HTCC) technology, so that the conformal ceramic metamaterial has high wave-penetrating performance and high-temperature resistance; and because the inner and outer ceramic chip layers are combined in a conformal mode, the strength of the conformal ceramic metamaterial is improved.

Description

【Technical field】 [0001] The invention relates to the field of metamaterials, in particular to a conformal ceramic metamaterial and a preparation method thereof. 【Background technique】 [0002] Metamaterials are materials that can modulate electromagnetic waves developed in the past ten years. Metamaterials are generally composed of a certain number of metal microstructures attached to a substrate with certain mechanics and electromagnetism. These microstructures with specific patterns and materials can modulate electromagnetic waves of specific frequency bands passing through them. [0003] The current metamaterials are covered with metal microstructures on a flat substrate, but the metamaterials actually required are curved surfaces rather than flat surfaces. Metamaterials made of low-dielectric constant and low-loss ceramics have good wave-transmitting performance and high-temperature resistance, but they cannot meet high-strength performance. 【Content of invention】 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/622
CPCC04B35/622B32B18/00C04B35/111C04B35/14C04B35/195C04B35/587C04B37/005C04B2235/5232C04B2235/6022C04B2235/6023C04B2235/6025C04B2235/94C04B2237/06C04B2237/062C04B2237/064C04B2237/068C04B2237/341C04B2237/343C04B2237/368H01Q15/0086B32B9/005B32B9/04B32B9/041B32B9/045B32B15/02B32B1/00B32B2307/202B32B2307/306B32B2307/54C04B35/80C04B35/62222
Inventor 刘若鹏赵治亚缪锡根熊晓磊
Owner KUANG CHI INNOVATIVE TECH
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