Method for preparing ceramic-based three-dimensional photonic crystals with photo-curing direct molding

A technology of light-curing molding and photonic crystals, applied in chemical instruments and methods, crystal growth, single crystal growth, etc., can solve problems such as the relationship between microstructure and macroscopic device structure, etc.

Inactive Publication Date: 2010-03-03
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research in this area is mainly on relatively simple devices, and less consid

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation of Al by Photocuring Direct Structuring 2 o 3 Process steps:

[0022] 1. Preparation of ceramic slurry. First prepare the master mix. Weigh 450 grams of deionized water, 750 grams of silica sol and 750 grams of glycerin and stir evenly, add 997.5 grams of acrylamide and 52.5 grams of N-N' dimethylbispropylamide, stir to completely dissolve to obtain a premix;

[0023] Secondly, take 1.5L of the premix solution, and add Al 2 o 3 A total of 3900 grams of ceramic powder, and add dispersant 65ml (0.3% of the mass fraction of ceramics), ball milling for 3 hours, make each component mix uniformly; then add 12ml of photoinitiator (0.8% of the premixed liquid fraction ), ball milled for 1 hour to obtain a uniformly dispersed ceramic slurry;

[0024] 2. Import the three-dimensional photonic crystal model into the molding machine for support and layering processing, and import the data into the manufacturing program, and the Al 2 o 3 The ceramic slurry is plac...

Embodiment 2

[0028] Preparation of SiO by Photocuring Direct Structuring 2 Process steps:

[0029] The difference between this embodiment and embodiment one is that the ceramic powder in step 1 is SiO 2 Powder, the particle size is 8μ and 1.8μ; the structural parameters of the three-dimensional photonic crystal model in step 2 are different; the roasting process in step 4 is to enter the furnace at room temperature, raise the temperature to 250°C at a heating rate of 150°C / h, and keep it for 1 hour; Raise the temperature to 600°C at a rate of 60°C / h and keep it for 2 hours; then raise it to 1200°C at a rate of 300°C / h and keep it for 1 hour; finally cool to room temperature and take it out. All the other are the same as embodiment one.

Embodiment 3

[0031] Preparation of stable ZrO by photocuring direct molding 2 Process steps:

[0032] The difference between this embodiment and embodiment one is: the ceramic powder in step 1 is stable ZrO 2 Powder with a particle size of 1 μ; the structural parameters of the three-dimensional photonic crystal model in step 2 are different; the roasting process in step 4 is to enter the furnace at room temperature, raise the temperature to 250 ° C at a heating rate of 120 ° C / h, and keep it for 1 hour; at 80 ° C Raise the temperature to 600°C at a rate of 300°C / h and keep it warm for 1 hour; then raise it to 1200°C at a rate of 300°C / h and keep it warm for 2 hours; finally cool to room temperature and take it out. All the other are the same as embodiment one.

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Abstract

The invention discloses a method for preparing ceramic-based three-dimensional photonic crystals with photo-curing direct molding. The process comprises the following steps: firstly, preparing a ceramic sizing agent; then carrying out photo-curing direct molding on the ceramic sizing agent by a rapid molding machine to prepare the ceramic-based three-dimensional photonic crystal according to CAD model design data; and finally washing, drying and roasting the prepared photonic crystal. The method has simple manufacturing process and strong structure controllability, solves the difficult problems for carrying out active design and effective control manufacture on the photonic crystal with a random complex structure, has the advantages which other manufacturing methods do not have and can beused for manufacturing the three-dimensional photonic crystal with arbitrarily complex structure.

Description

technical field [0001] The invention relates to a method for manufacturing a three-dimensional photonic crystal, in particular to a method for preparing a ceramic-based photonic crystal with any three-dimensional complex structure based on photocuring direct molding. Background technique [0002] Photonic crystals have the function of controlling the propagation of photons. This feature determines that it has a wide range of applications in communications, lasers, military and other aspects. The performance of photonic crystals is related to the structure of photonic crystals, the connectivity and dielectric constant of the medium. The diversity and complexity of structures / materials / shape of photonic crystals make it a great challenge to fabricate photonic crystals with complete photonic bandgap. The manufacture of three-dimensional photonic crystals has become the bottleneck of its development. [0003] At present, the structure manufacturing of photonic crystals is mai...

Claims

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Application Information

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IPC IPC(8): C30B29/10
Inventor 李涤尘梁庆宣王敏捷胡亚文孙坤周伟召
Owner XI AN JIAOTONG UNIV
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