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1-3 type arch-shaped or circular ring piezoelectric composite material and preparing method thereof

A piezoelectric composite material and arc-shaped technology, which is applied in the selection of materials for piezoelectric devices or electrostrictive devices, the manufacture/assembly of piezoelectric/electrostrictive devices, and the selection of device materials, can solve piezoelectric The shape of the ceramic surface is not easy to control, and the polymer is difficult to fill, etc., to achieve the effect of increased preparation success rate, good product performance, and simple preparation process

Active Publication Date: 2014-03-19
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Compared with pure piezoelectric ceramics, 1-3 type piezoelectric composite materials have great advantages, but today's general 1-3 type piezoelectric composite materials are made on the basis of piezoelectric ceramic blocks, but there is no relevant The report on the preparation of piezoelectric composites on the basis of piezoelectric ceramics with radians or circular piezoelectric ceramics. In theory, piezoelectric composites have the unique advantages of composite materials compared to piezoelectric ceramic rings. In addition, its shape plasticity and performance stability further expand the application range of annular composite materials
However, due to the difficulty of controlling the curved surface shape of piezoelectric ceramics and difficult filling of polymers, the application of 1-3 type arc or circular piezoelectric composite materials has not been reported so far. The approach of annular piezoelectric composites is of great importance

Method used

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  • 1-3 type arch-shaped or circular ring piezoelectric composite material and preparing method thereof
  • 1-3 type arch-shaped or circular ring piezoelectric composite material and preparing method thereof
  • 1-3 type arch-shaped or circular ring piezoelectric composite material and preparing method thereof

Examples

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Embodiment 1

[0039] The cutting-casting process is used to prepare 1-3 arc-shaped piezoelectric composite materials, and the process flow chart is as follows figure 1 shown. Here, a semi-annular piezoelectric ceramic is used as an example of an arc-shaped piezoelectric ceramic. Cut the piezoelectric ceramic into two semicircles along the diameter of the pzt-4 piezoelectric ceramic ring (ie ring piezoelectric ceramic) with a diamond outer circle cutting dicing machine Ring, a 1-3 arc-shaped piezoelectric composite material is prepared from a piezoelectric ceramic semi-circular ring, and the volume fraction of the piezoelectric ceramic is 50.3wt%. The steps are as follows:

[0040] 1. Cut the ceramic along the axial direction of the piezoelectric ceramic semi-circle with a diamond outer circle cutting dicing machine. The width of the ceramic column is 2mm, and the base is 2mm, and a series of grooves are cut;

[0041] 2. Clean the material cut in step 1 in an ultrasonic cleaner, pour bisp...

Embodiment 2

[0048] The cutting-casting process is used to prepare 1-3 ring piezoelectric composite materials, and the process flow chart is as follows figure 2 shown. The piezoelectric ceramic ring used is a pzt-4 piezoelectric ceramic ring with a diameter of 51.00 mm × 20.00 mm × 1.70 mm, and the volume fraction of the piezoelectric ceramic is 50.3 wt%. The steps are as follows:

[0049] 1. Cut the ceramic along the axial direction of the piezoelectric ceramic ring with a diamond outer circle cutting dicing machine. The width of the ceramic column is 2mm, and the base is 2mm, and a series of grooves are cut;

[0050] 2. Clean the material cut in step 1 in an ultrasonic cleaner, pour bisphenol A epoxy resin and cure at room temperature for 24 hours;

[0051] 3. Fix the material obtained in step 2 on the base, make it move in the middle of the cutting process, and cut again along the direction perpendicular to step 1. This time the cutting does not leave the base, and the ceramic materi...

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Abstract

The invention discloses a 1-3 type arch-shaped or circular ring piezoelectric composite material. In the 1-3 type arch-shaped or circular ring piezoelectric composite material, arc-shaped or circular piezoelectric ceramics are used as skeletons, a polymer is used a substrate, and a metal is used as an electrode, wherein the one-dimensional arc-shaped piezoelectric ceramic skeletons are arranged in the three-dimensional interconnected polymer in parallel. The invention also provides a preparing method of the 1-3 type arch-shaped or circular ring piezoelectric composite material; according to the preparing method, the composite material is prepared by cutting and pouring; the preparing method has the advantages of simple manufacturing technology, large flexibility of operation, good performance of obtained products and high success rate, solves the contradiction that the cutting depth of a cutting machine is limited by the larger diameter of the circular ring of the piezoelectric ceramic and leads the impact of a cutting instrument on the preparation process to be reduced.

Description

technical field [0001] The invention relates to a 1-3 type arc piezoelectric composite material or a 1-3 type ring piezoelectric composite material for high-power radial vibration applications and a preparation method thereof, in particular to a 1-3 type arc piezoelectric composite material. Shaped piezoelectric composite material and a method for preparing 1-3 type arc-shaped piezoelectric composite material on the basis of piezoelectric ceramic rings by using a cutting-casting process. Background technique [0002] The piezoelectric ceramic ring that produces radial stretching vibration is a more commonly used acoustic element. It has the characteristics of simple structure, stable performance, no directivity in the horizontal direction, high receiving sensitivity, easy to deploy, and easy to carry. , geology, oil exploration, marine development and ultrasound have been widely used. In recent years, the ring-shaped piezoelectric intelligent structure has attracted the att...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/18H01L41/37H01L41/293
Inventor 黄世峰徐东宇叶正茂孙敏程新
Owner UNIV OF JINAN