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Ceramic-based metamaterial and preparation method thereof

A metamaterial and ceramic-based technology, applied in the field of metamaterials, can solve the problems of conductive microstructure deformation, large sintering shrinkage rate of tape-cast sheets, and reduce the distribution precision of conductive microstructures, so as to reduce precision, suppress shrinkage, and controllable thickness Effect

Active Publication Date: 2019-12-20
KUANG CHI INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem of excessive sintering shrinkage in the cast sheet made by casting method.
Excessive shrinkage will firstly lead to unreliable thickness of the metamaterial, and secondly lead to deformation of the conductive microstructure on the ceramic-based metamaterial, thereby reducing the distribution accuracy of the conductive microstructure

Method used

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  • Ceramic-based metamaterial and preparation method thereof
  • Ceramic-based metamaterial and preparation method thereof
  • Ceramic-based metamaterial and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0082] The first step is to obtain a ceramic thin plate with low dielectric and low loss, such as a quartz ceramic thin plate.

[0083] The second step is to use PVB adhesive with a concentration of 5-20% (wt), and mix it with a solvent (3:2=alcohol:butanone) to form a solution. Dip the PVB solution with a dust-free paper and apply it on the surface of the ceramic substrate, and let it dry slightly.

[0084] The third step is to make a casting sheet. The casting sheet can be composed of dielectric glass, (with lower dielectric constant and dielectric loss) glass ceramics, and a mixture of ceramics and glass. For example, TC-#3 powder of Beixu Electronic Glass Co., Ltd., which contains SiO 2 , Al 2 o 3 , Na 2 O and K 2 O.

[0085] In the third step, the silver-based conductive microstructure is printed on the cast green sheet by screen printing.

[0086] In the fourth step, a blank tape-cast green sheet and a tape-cast green sheet printed with conductive microstructures ...

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Abstract

The invention relates to a preparation method of a ceramic based metamaterial. The method comprises the following steps: a set of ceramic substrates which is sintered and contains multiple ceramic substrates is provided; a set of tape casting green compact sheets which contains one or multiple tape casting green compact sheets is obtained by a tape casting method; a conductive microstructure is formed on at least one tape casting green compact sheet from the set of tape casting green compact sheets; the set of ceramic substrates and the set of tape casting green compact sheets are bonded in order to form a multilayer laminated structure, wherein one tape casting green compact sheet with the conductive microstructure is clamped between every two ceramic substrates; thermocompression and pressing is carried out for the multilayer laminated structure; the multilayer laminated structure is sintered, in order to obtain the ceramic based metamaterial.

Description

technical field [0001] The present invention relates to supermaterials, in particular to ceramic-based supermaterials and a preparation method thereof. Background technique [0002] Metamaterial refers to some artificial composite structures or composite materials with extraordinary physical properties that natural materials do not have. The strange properties of metamaterials stem from their precise geometry and size. Microstructures in metamaterials, whose size scales are smaller than the wavelengths they act on, are thus able to exert influence on the waves. The metamaterials developed so far include left-handed materials, photonic crystals, supermagnetic materials, etc. Left-handed (LH) materials are a class of material systems that have both negative magnetic permeability and negative permittivity in a certain frequency band (forming a negative refractive index for the propagation of electromagnetic waves). In contrast, most natural materials are RH materials. The e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B18/00
Inventor 不公告发明人
Owner KUANG CHI INST OF ADVANCED TECH