Voltage-resistant piezoelectric ceramic material and preparation method thereof

A piezoelectric ceramic and voltage-resistant technology, which is applied in the field of voltage-resistant piezoelectric ceramic materials and their preparation, can solve the problems of cracking of tiles, weak voltage-resistant performance, and increased voltage, and achieves low cost, excellent voltage-resistant performance, simple craftsmanship

Inactive Publication Date: 2019-03-01
贵州振华电子信息产业技术研究有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the piezoelectric ceramic material prepared by this patent has good energy density, tensile strength and bending strength, its withstand voltage performance is not strong, and the ceramic will crack when the voltage increases
[0006] Another example is the piezoelectric pump used in the aquarium industry. In order to increase the flow rate of the piezoelectric pump to ≥500ML / min, the working voltage of the ceramic piece must be increased, and the working voltage is required to be ≥110V. However, there is also a problem that the voltage increases, and the ceramic piece There will be cracking problems

Method used

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  • Voltage-resistant piezoelectric ceramic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A voltage-resistant piezoelectric ceramic material, the piezoelectric ceramic material is made of Pb 3 o 4 , ZrO 2 、TiO 2 , ZnO, Nb 2 o 5 、Ni 2 o 3 , Sb 2 o 3 , SrCO 3 Made of anti-pressure agent, the component formula is: 0.75Pb(Zr,Ti)O 3 -0.05Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -0.15Pb(Ni 1 / 3 Nb 2 / 3 )O 3 -0.05Pb(Sb 1 / 3 Nb 2 / 3 )O 3 +xwt%SrCO 3 +ywt% pressure resistant agent.

[0035] Further, in the composition formula, the proportion of niobium zinc-niobium nickel-niobium antimony-lead zirconate titanate pentad system is 93wt%; in the composition formula, Zr / Ti=0.98; x=2.1; y= 0.2; the pressure-resistant agent is a mixture of tungsten trioxide, aluminum oxide and silicon dioxide, wherein WO 3 20wt%, Al 2 o 3 Accounting for 30wt%, SiO 2 Accounting for 50wt%.

[0036] A method for preparing a voltage-resistant piezoelectric ceramic material as described above, comprising the following steps:

[0037] (1) Ingredients, primary ball milling: at room temperature...

Embodiment 2

[0045] A voltage-resistant piezoelectric ceramic material, the piezoelectric ceramic material is made of Pb 3 o 4 , ZrO 2 、TiO 2 , ZnO, Nb 2 o 5 、Ni 2 o 3 , Sb 2 o 3 , SrCO 3 Made of anti-pressure agent, the component formula is: 0.75Pb(Zr,Ti)O 3 -0.05Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -0.15Pb(Ni 1 / 3 Nb 2 / 3 )O 3 -0.05Pb(Sb 1 / 3 Nb 2 / 3 )O 3 +xwt%SrCO 3 +ywt% pressure resistant agent.

[0046] Further, in the composition formula, the proportion of niobium zinc-niobium nickel-niobium antimony-lead zirconate titanate pentad system is 98wt%; in the composition formula, Zr / Ti=1.0; x=5.5; y= 0.7; the pressure-resistant agent is a mixture of tungsten trioxide, aluminum oxide and silicon dioxide, wherein WO 3 20wt%, Al 2 o 3 Accounting for 30wt%, SiO 2 Accounting for 50wt%.

[0047] A method for preparing a voltage-resistant piezoelectric ceramic material as described above, comprising the following steps:

[0048] (1) Ingredients, primary ball milling: at room temperature ...

Embodiment 3

[0056] A voltage-resistant piezoelectric ceramic material, the piezoelectric ceramic material is made of Pb 3 o 4 , ZrO 2 、TiO 2 , ZnO, Nb 2 o 5 、Ni 2 o 3 , Sb 2 o 3 , SrCO 3Made of anti-pressure agent, the component formula is: 0.75Pb(Zr,Ti)O 3 -0.05Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -0.15Pb(Ni 1 / 3 Nb 2 / 3 )O 3 -0.05Pb(Sb 1 / 3 Nb 2 / 3 )O 3 +xwt%SrCO 3 +ywt% pressure resistant agent.

[0057] Further, in the composition formula, the proportion of niobium zinc-niobium nickel-niobium antimony-lead zirconate titanate pentad system is 94.78wt%; in the composition formula, Zr / Ti=0.96; x=2.0; y =0.3; the pressure-resistant agent is a mixture of tungsten trioxide, aluminum oxide and silicon dioxide, wherein WO 3 20wt%, Al 2 o 3 Accounting for 30wt%, SiO 2 Accounting for 50wt%.

[0058] A method for preparing a voltage-resistant piezoelectric ceramic material as described above, comprising the following steps:

[0059] (1) Ingredients, primary ball milling: at room temperatu...

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Abstract

The invention discloses a voltage-resistant piezoelectric ceramic material. The voltage-resistant piezoelectric ceramic material is prepared from Pb3O4, ZrO2, TiO2, ZnO, Nb2O5, Ni2O3, Sb2O3, SrCO3 anda pressure-resistant agent, and a component formula is 0.75 Pb (Zr, Ti) O3- 0.05Pb (Zn1/3Nb2/3)O3-0.15Pb(Nil/3Nb2/3)O3-0.05Pb(Sb1/3Nb2/3) O3 + xwt% SrCO3 + ywt% pressure-resistant agent. The invention further discloses a preparation method of the voltage-resistant piezoelectric ceramic material. Through the preparation method, higher dielectric and piezoelectric properties can be obtained, d<33>is greater than or equal to 650 pC/N, epsilon <33><T>/epsilon <0> is greater than or equal to 5000, K

is greater than or equal to 0.75, and the voltage can reach above 140 V when tested at the frequency of 1 KHz to 4 KHz. A simple process, low costs, excellent voltage resistance and wide application are achieved.

Description

technical field [0001] The invention belongs to the technical field of electronic materials, and in particular relates to a voltage-resistant piezoelectric ceramic material and a preparation method thereof. Background technique [0002] Piezoelectric ceramics is a functional ceramic material that can convert mechanical energy and electrical energy, and it is the most widely used and the lowest cost material. For a long time, people have used lead zirconate titanate binary system (PZT) and ternary piezoelectric ceramics to make piezoelectric buzzers, piezoelectric horns, metal flaw detectors, ultrasonic cleaning, ultrasonic medical treatment, sonar systems, and car reversing sensors. Products such as sensors, piezoelectric pumps, ultrasonic transducers, ceramic filters and piezoelectric actuators are widely used in various fields such as aviation, aerospace, weapons, ships and civil technology. The use of piezoelectric ceramics continues to expand, and the variety is increas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/493C04B35/622
CPCC04B35/493C04B35/622C04B2235/3213C04B2235/3251C04B2235/3279C04B2235/3284C04B2235/3294C04B2235/6562
Inventor 张元松张静蒋荣丽吴康和戴昭波
Owner 贵州振华电子信息产业技术研究有限公司
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