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Lead zirconate titanate piezoelectric ceramic with additional antimony oxide

A technology of piezoelectric ceramics and lead zirconate titanate, which is applied in the field of lead zirconate titanate piezoelectric ceramics, can solve rare problems and achieve the effects of high Curie temperature, simple composition and easy operation

Inactive Publication Date: 2010-10-27
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is rare to study ternary systems and obtain high d33, high Kp, and high Curie temperature systems at the same time

Method used

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  • Lead zirconate titanate piezoelectric ceramic with additional antimony oxide
  • Lead zirconate titanate piezoelectric ceramic with additional antimony oxide
  • Lead zirconate titanate piezoelectric ceramic with additional antimony oxide

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specific Embodiment

[0039] According to the traditional preparation method, the Pb 3 o 4 , ZrO 2 ,TiO 2 and Sb 2 o 3 The oxide powder is weighed according to the chemical ratio, ground in a mortar, sieved, put into a ball mill jar for ball milling for 4 hours, and dried; the dried powder is ground in a mortar, sieved, and granulated; single-axis Stress molding, molding pressure 200-250Mpa; green sheet green body diameter 12mm; green sheet sintering at 1180-1260°C for 2 hours. from figure 1 It can be seen that when Zr / Ti=52:48, the performance is the best, so the Zr / Ti ratio is fixed at 52:48, that is, Pb(Zr 0.52 Ti 0.48 )O 3 +zwt%Sb 2 o 3 , z respectively take 0.9, 1.2, 1.5, 1.8, 2.1, sintering temperature take 1180 ℃, 1200 ℃, 1220 ℃, 1240 ℃, 1260 ℃, do orthogonal test.

[0040]z=0.9, the sintering temperature is 1180°C, 1200°C, 1220°C, 1240°C, 1260°C, respectively recorded as 1-1, 1-2, 1-3, 1-4, 1-5; z=1.2, sintering The temperature is 1180°C, 1200°C, 1220°C, 1240°C, 1260°C, respecti...

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Abstract

The invention discloses a lead zirconate titanate piezoelectric ceramic with additional antimony oxide, which comprises the following raw material components with mole percentage: Pb(ZrxTiy)O3+zwt%Sb2O3, wherein x is greater than or equal to 0.50 and is less than or equal to 0.53, y is equal to 1-x, z is greater than or equal to 0.9 and is less than or equal to 2.1, and z shows the mole percentage of additional Sb2O3 accounting for the total content of the raw materials. By adopting a traditional preparation method, the invention provides a piezoelectric ceramic with large strain which has the advantages of high Curie temperature and excellent comprehensive performance, simple components, simple processing steps, easy operation, good repeatability and high rate of finished products. The invention is mainly applied to piezoelectric ceramic drivers, piezoelectric transformers, shell fuses, transducers, built-in vibrating sensors for automobiles, controller shells, high-temperature flow meters, buzzers, high-temperature sensors and other devices.

Description

technical field [0001] The present invention relates to the ceramic composition characterized by composition, especially relates to adding antimony oxide Sb 2 o 3 lead zirconate titanate piezoelectric ceramics. Background technique [0002] Piezoelectric material is a functional ceramic material that converts mechanical energy and electrical energy. It is a material with piezoelectric properties. Piezoelectric ceramics are information functional ceramic materials that can convert mechanical energy and electrical energy into each other - piezoelectric effect. In addition to piezoelectricity, piezoelectric ceramics also have dielectric properties, elasticity, etc., and have been widely used in medical imaging, Acoustic sensors, acoustic transducers, ultrasonic motors, etc. It can generate electric field due to mechanical deformation, and can also generate mechanical deformation due to the action of electric field. This inherent electromechanical coupling effect makes piezo...

Claims

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Application Information

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IPC IPC(8): C04B35/491
Inventor 孙清池王晓娜马卫兵孙秋香
Owner TIANJIN UNIV
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