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Piezoceramic material for high-quality ignition device

A technology of piezoelectric ceramics and ceramic materials, applied in piezoelectric/electrostrictive/magnetostrictive devices, circuits, electrical components, etc., can solve problems such as low dielectric loss, achieve low dielectric loss, excellent performance, The effect of high voltage electrical performance

Inactive Publication Date: 2009-11-04
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a piezoelectric ceramic material, which solves the contradiction between the high-voltage performance and low dielectric loss of existing piezoelectric ceramic materials used in ignition devices, and has both high piezoelectric performance and low Dielectric loss to meet the requirements of high-quality piezoelectric ignition devices

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) The matrix ingredients are formed according to the following molar ratio formula:

[0021] Pb 0.95 Sr 0.05 (Mn 1 / 3 Sb 2 / 3 )(Zn 1 / 3 Nb 2 / 3 )(Zr 0.5 Ti 0.5 )O 3

[0022] (2) Pb 3 o 4 , ZrO 2 、TiO 2 , MnO 2 , Sb 2 o 3 , ZnO, Nb 2 o 5 and SrCO 3 According to the proportion of step (1), mix and ball mill, pre-press into blocks after drying, pre-sinter at 900°C, keep warm for 2 hours, and obtain matrix powder after crushing;

[0023] (3) Doping 0.2wt% BiFeO in the matrix powder 3 ;

[0024] (4) Finely grind the doped matrix powder, dry it and use a PVA solution with a mass concentration of 5% as a binder to granulate, press and mold it after aging for 24 hours, remove the binder at 800°C, and then dry it at 1270 ℃ sintering, heat preservation for 2 hours, to obtain ceramic materials, and its piezoelectric and dielectric properties are listed in Table 1.

Embodiment 2

[0026] (1) The matrix ingredients are formed according to the following molar ratio formula:

[0027] Pb 0.95 Sr 0.05 (Mn 1 / 3 Sb 2 / 3 )(Zn 1 / 3 Nb 2 / 3 )(Zr 0.5 Ti 0.5 )O 3

[0028] (2) Pb 3 o 4 , ZrO 2 、TiO 2 , MnO 2 , Sb 2 o 3 , ZnO, Nb 2 o 5 and SrCO 3 According to the proportion of step (1), mix and ball mill, pre-press into blocks after drying, pre-sinter at 900°C, keep warm for 2 hours, and obtain matrix powder after crushing;

[0029] (3) Doping 0.3wt% BiFeO in the matrix powder 3 ;

[0030](4) Finely grind the doped matrix powder, dry it and use a PVA solution with a mass concentration of 5% as a binder to granulate, press and mold it after aging for 24 hours, remove the binder at 800°C, and then dry it at 1270 ℃ sintering, heat preservation for 2 hours, to obtain ceramic materials, and its piezoelectric and dielectric properties are listed in Table 1.

Embodiment 3

[0032] (1) The matrix ingredients are formed according to the following molar ratio formula:

[0033] Pb 0.95 Sr 0.05 (Mn 1 / 3 Sb 2 / 3 )(Zn 1 / 3 Nb 2 / 3 )(Zr 0.5 Ti 0.5 )O 3

[0034] (2) Pb 3 o 4 , ZrO 2 、TiO 2 , MnO 2 , Sb 2 o 3 , ZnO, Nb 2 o 5 and SrCO 3 According to the proportion of step (1), mix and ball mill, pre-press into blocks after drying, pre-sinter at 900°C, keep warm for 2 hours, and obtain matrix powder after crushing;

[0035] (3) Doping 0.4wt% BiFeO in the matrix powder 3 ;

[0036] (4) Finely grind the doped matrix powder, dry it and use a PVA solution with a mass concentration of 5% as a binder to granulate, press and mold it after aging for 24 hours, remove the binder at 800°C, and then dry it at 1270 ℃ sintering, heat preservation for 2 hours, to obtain ceramic materials, and its piezoelectric and dielectric properties are listed in Table 1.

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Abstract

The invention provides a piezoceramic material for a high-quality ignition device. In the piezoceramic material, each composition of a matrix is sintered into solid solution powder; bismuth ferroic is doped into the solid solution powder of the matrix to be sintered into solid solution ceramic, wherein the matrix comprises the formulation by molar ratio of Pb0.95Sr0.05(Mn1 / 3Sb2 / 3)(Zn1 / 3Nb2 / 3)(Zr0.5Ti0.5)O3; and the doped bismuth ferroic is 0.2 to 0.6 percent of gross mass of the solid solution powder of the matrix by weight. The piezoceramic material has high piezoelectric performance and low dielectric loss. The best sample performance can reach: more than or equal to 26.04 of g33, more than or equal to 433pC-N of d33, more than or equal to 0.2 percent of tan delta, more than or equal to 0.60 of kp, approximately equal to 1879 of sigma 33 / sigma0, and more than or equal to 724 of Qm. The piezoceramic material can meet application in various high-precision piezoceramic ignition devices.

Description

technical field [0001] The present invention relates to a piezoelectric ceramic material, in particular to a piezoelectric ceramic material having simultaneously high piezoelectric performance (d 33 , g 33 、k p ) and low dielectric loss (tanδ) piezoelectric ceramic materials. Can be applied to high quality lighters. Background technique [0002] Piezoelectric ceramics are important functional materials that realize the conversion between mechanical energy (including sound energy) and electrical energy. Since the emergence of piezoelectric ceramics, their applications have spread throughout all aspects of human daily life and production, especially in the detection, conversion, and processing of information. It can be used in power supply, signal source, signal conversion, transmission and reception, signal processing, sensing, measurement, storage and display and other fields. [0003] Among them, the piezoelectric ceramic igniter is a device that converts mechanical ene...

Claims

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Application Information

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IPC IPC(8): C04B35/01C04B35/622H01L41/187
Inventor 周静陈文毛洁冰郑惠清沈杰孙华君徐庆徐磊方潇
Owner WUHAN UNIV OF TECH
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