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A kind of piezoelectric ceramic and its preparation method and 3D printing piezoelectric ceramic device

A technology of piezoelectric ceramics and 3D printing, which is applied in ceramic forming machines, manufacturing tools, additive processing, etc., can solve the problems of low piezoelectric performance and low density of piezoelectric ceramics, achieve excellent density, improve electrical properties, Effect of improving density and electrical properties

Active Publication Date: 2021-08-13
广东云声科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a piezoelectric ceramic and its preparation method and a 3D printed piezoelectric ceramic device, which solves the technical problems of low piezoelectric ceramic density and low piezoelectric performance in the prior art

Method used

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  • A kind of piezoelectric ceramic and its preparation method and 3D printing piezoelectric ceramic device
  • A kind of piezoelectric ceramic and its preparation method and 3D printing piezoelectric ceramic device
  • A kind of piezoelectric ceramic and its preparation method and 3D printing piezoelectric ceramic device

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Experimental program
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Embodiment 1

[0057] Step 1: Preparation of the first piezoelectric ceramic template grain

[0058] (1) Pure trioxide will be analyzed (Bi 2 O 3 ) And titanium dioxide (TiO 2 The molar ratio is 1: 1 mixed with butanone as a medium, ball milling 8h, and then mixed with mixed base at 120 ° C.

[0059] (2) The NaCl molten salt and the KCl molten salt were mixed with a molar ratio of 1: 1 to obtain a mixed molten salt, and then (1) obtained mixed base was added to the mixed molten salt, heated to 1000 ~ 1150 ° C, and after 1 hour after heat BI 4 Ti 3 O 12 . Bring the resulting BI 4 Ti 3 O 12 Batio 3 TiO 2 Mass moon is 1: 1: 1: 1 ~ 1: 1.1: 1.1 mix, Join Bacl 2 And mixed molten salt of KCl (bacl 2 The molar ratio of KCl is 1: 1), and the magnetic stirring is mixed and mixed, and the reaction is heated to 1000 ~ 1100 ° C, the temperature is about 1 hour, the reaction is obtained by Babi 4 Ti 4 O 15 Precursor.

[0060] (3) Put Babi 4 Ti 4 O 15 Precarrier and Baco 3 Mix, KCl was added as a melt salt, an...

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Abstract

The invention relates to the technical field of functional ceramic materials, in particular to a piezoelectric ceramic, a preparation method thereof, and a 3D printed piezoelectric ceramic device. The preparation method of the piezoelectric ceramics provided by the present invention includes step 1: preparing the first piezoelectric ceramic template grains by a liquid phase method; step 2: aligning the first piezoelectric ceramic template grains through ultrasonic regulation to obtain the second Piezoelectric ceramic template crystal grains; step 3: making the second piezoelectric ceramic template crystal grains into a ceramic green body through a ceramic material slurry molding method; step 4: sintering the ceramic green body to obtain piezoelectric ceramics. The 3D printing piezoelectric ceramic device provided by the present invention performs ultrasonic control on the first piezoelectric ceramic template grain to obtain the second piezoelectric ceramic template grain, and the 3D printing unit performs 3D printing on the second piezoelectric ceramic template grain. Print. The piezoelectric ceramics prepared by the piezoelectric ceramics preparation method of the invention effectively solve the technical problems of low density and low piezoelectric performance in the existing piezoelectric ceramics.

Description

Technical field [0001] The present invention relates to the technical field of functional ceramic materials, and more particularly to a piezoelectric ceramic and a preparation method thereof and a 3D print piezoelectric ceramic device. Background technique [0002] Piezoelectric ceramics are an information functional material that can convert mechanical energy and electrical energy. The piezoelectric ceramics cause the internal positive and negative charge center to be polarized under the action of mechanical stress, resulting in a binding charge of the symbol in the surface of the material, is due to this positive electrical effect, The piezoelectric ceramics are widely used in piezoelectric ignitions, gas stoves, fingerprint identification instruments and medical ultrasound instruments. The existing piezoelectric ceramic is mostly polystrum, and the internal is not ruled, and the piezoelectric properties are the average value of all directions, so that the precipitation of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/622C04B35/468B28B1/00B33Y10/00B33Y30/00B33Y70/10
CPCB28B1/001B33Y10/00B33Y30/00B33Y70/00C04B35/468C04B35/622C04B2235/3298C04B2235/6026
Inventor 陈燕程健纪轩荣
Owner 广东云声科技有限公司