Preparation method of high-strength porous piezoelectric ceramic

An electro-ceramic, high-strength technology, applied in the field of preparation of high-strength porous piezoelectric ceramics, can solve the problems of not meeting market requirements, poor piezoelectric performance, low porosity, etc., to avoid breakdown, high porosity, The effect of high mechanical strength

Inactive Publication Date: 2018-05-29
高俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the defects of low strength, low porosity and poor piezoelectric performance in the current common piezoelectric ceramics, which cannot meet the requirements of the market, a preparation of high-strength porous piezoelectric ceramics is provided method

Method used

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  • Preparation method of high-strength porous piezoelectric ceramic

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example 1

[0024]Mix and stir acrylamide, N,N-methylenebisacrylamide and tert-butanol for 10 minutes at a mass ratio of 2:1:3 to obtain a mixture, mix the mixture with deionized water at a mass ratio of 1:3 and place In the beaker, continue to stir for 11 minutes to obtain a self-made mixture; weigh 10g of citrus and 16g of spinach and mix them in a blender for 16 minutes to obtain a crushed product. Mix the crushed product with distilled water at a mass ratio of 1:5 and put Put the beaker into a beaker, place the beaker in an ultrasonic oscillator, conduct ultrasonic extraction for 45 minutes at a temperature of 60°C and a power of 180W, filter after extraction, collect the filtrate, and distill the filtrate under reduced pressure to obtain a self-made plant extract. Finally, mix the self-made plant extract with the above-mentioned self-made mixed solution at a volume ratio of 1:1, and ultrasonically treat it with a power of 200W for 10 minutes, let it stand for layers, separate and remo...

example 2

[0026] Mix and stir acrylamide, N,N-methylenebisacrylamide and tert-butanol for 11 minutes at a mass ratio of 2:1:3 to obtain a mixture, mix the mixture with deionized water at a mass ratio of 1:3 and place In the beaker, continue to stir for 13 minutes to obtain a self-made mixture; weigh 11g of citrus and 18g of spinach and mix them in a blender for 18 minutes to obtain a crushed product. Mix the crushed product with distilled water at a mass ratio of 1:5 and put put into a beaker, place the beaker in an ultrasonic oscillator, conduct ultrasonic extraction for 55 minutes at a temperature of 70°C and a power of 190W, filter after extraction, collect the filtrate, and distill the filtrate under reduced pressure to obtain a self-made plant extract. Finally, mix the self-made plant extract with the above-mentioned self-made mixed solution at a volume ratio of 1:1, and ultrasonically treat it with a power of 230W for 11 minutes, let it stand for layers, separate and remove the low...

example 3

[0028] Mix acrylamide, N,N-methylenebisacrylamide and tert-butanol with a mass ratio of 2:1:3 and stir for 12 minutes to obtain a mixture, mix the mixture with deionized water at a mass ratio of 1:3 and place In the beaker, continue to stir for 15 minutes to obtain a self-made mixture; weigh 12g of citrus and 20g of spinach and mix them in a blender for 20 minutes to obtain a crushed product. Mix the crushed product with distilled water at a mass ratio of 1:5 and put Put it into a beaker, place the beaker in an ultrasonic oscillator, conduct ultrasonic extraction for 60 minutes at a temperature of 80°C and a power of 200W, filter after extraction, collect the filtrate, and distill the filtrate under reduced pressure to obtain a self-made plant extract. Finally, mix the self-made plant extract with the above-mentioned self-made mixed solution at a volume ratio of 1:1, and ultrasonically treat it with a power of 260W for 12 minutes, let it stand for layers, separate and remove th...

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Abstract

The invention discloses a preparation method of high-strength porous piezoelectric ceramic, and belongs to the technical field of ceramic preparation. Strontium carbonate, barium carbonate and titanium dioxide are mixed as a substrate, and tert-butanol and other substances and a plant extract are mixed as a reinforcing agent to prepare piezoelectric ceramic with high strength, high porosity and high piezoelectric performance. The tert-butanol has high saturated steam pressure and low surface tension, is highly volatile in the drying process of a green body, and does not affect compactness between adjacent granules, so that the strength of the green body is improved; in addition, monomers are introduced in the tert-butanol, macromolecules are obtained in the green body through a polymerization reaction of the monomers, and a three-dimensional network structure is constructed for supporting a ceramic body, so that high porosity is maintained; in the sintering process, a uniform pore structure is formed through an in-situ polymerization reaction, so that breakdown in the polarizing process can be avoided, transmission of stress and energy is facilitated, and thus the piezoelectric performance of the piezoelectric ceramic is improved; the high-strength porous piezoelectric ceramic has a wide application prospect.

Description

technical field [0001] The invention discloses a preparation method of high-strength porous piezoelectric ceramics, belonging to the technical field of ceramic preparation. Background technique [0002] Piezoelectric ceramics are functional ceramic materials that can convert mechanical energy and electrical energy, and belong to inorganic non-metallic materials. Piezoelectric ceramics have sensitive characteristics and can convert extremely weak mechanical vibrations into electrical signals, which can be used in sonar systems, weather detection, telemetry environmental protection, household appliances, etc. The sensitivity of piezoelectric ceramics to external forces enables it to sense the disturbance of the air caused by flying insects flapping their wings more than ten meters away. It is used to make piezoelectric seismographs, which can accurately measure the intensity of earthquakes and indicate the direction and distance of earthquakes. It has to be said that it is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B35/465C04B35/632C04B35/622
CPCC04B35/465C04B35/622C04B35/632C04B38/0645C04B2235/3208C04B2235/3213C04B2235/96C04B38/0074
Inventor 高俊杨亚生陈可
Owner 高俊
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