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Lead zirconate titanate-lead tantalum magnesium niobate piezoelectric ceramic material and preparation method thereof

A technology of lead niobate tantalum magnesium oxide and lead zirconate titanate, applied in the field of piezoelectric ceramic materials, can solve the problems of high dielectric loss, low piezoelectric constant, low mechanical quality factor, etc., achieve low dielectric loss and reduce energy Loss, effect of low dielectric constant

Active Publication Date: 2022-05-06
XIAMEN NIELL ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Soft piezoelectric ceramics are mainly characterized by high piezoelectric constant, low mechanical quality factor and high dielectric loss; while hard piezoelectric ceramics are mainly characterized by high mechanical quality factor and ultra-low dielectric loss, but generally lower piezoelectric constant

Method used

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  • Lead zirconate titanate-lead tantalum magnesium niobate piezoelectric ceramic material and preparation method thereof
  • Lead zirconate titanate-lead tantalum magnesium niobate piezoelectric ceramic material and preparation method thereof
  • Lead zirconate titanate-lead tantalum magnesium niobate piezoelectric ceramic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This example provides a method for preparing a lead zirconate titanate-lead niobate tantalate magnesium piezoelectric ceramic material, which meets the chemical composition of 0.98Pb 0.97 Sr 0.03 (Zr 0.52 Ti 0.48 )O 3 -0.02Pb(Mg 1 / 3 (Nb 0.8 Ta 0.2 ) 2 / 3 )O 3 +0.1wt%Sb 2 o 3 +0.1wt%MnO 2 modified piezoelectric ceramic materials.

[0025] The method described in this embodiment includes the following steps:

[0026] S1, ball milling, weigh the analytically pure raw material SrCO according to the above metering ratio 3 , ZrO 2 、TiO 2 , Sb 2 o 3 , MgO, Pb 3 0 4 , Nb 2 o 5 、 Ta 2 o 5 and MnO 2 Mix it in absolute ethanol, put it into a ball mill tank and use zirconia balls to roll and grind for 30 hours to obtain ball mill material.

[0027] S2, secondary ball milling, drying the absolute ethanol in the ball mill, and pre-sintering the dried powder at 800° C. for 3 hours to obtain pre-sintered powder. Secondary ball milling of pre-sintered powder for ...

Embodiment 2

[0032] This example provides a method for preparing a lead zirconate titanate-lead niobate tantalate magnesium piezoelectric ceramic material, which meets the chemical composition of 0.98Pb 0.97 Sr 0.03 (Zr 0.53 Ti 0.47 )O 3 -0.02Pb(Mg 1 / 3 (Nb 0.8 Ta 0.2 ) 2 / 3 )O 3 +0.1wt%Sb 2 o 3 +0.1wt%MnO 2 modified piezoelectric ceramic materials.

[0033] The method described in this embodiment includes the following steps:

[0034] S1, ball milling, weigh the analytically pure raw material SrCO according to the above metering ratio 3 , ZrO 2 、TiO 2 , Sb 2 o 3, MgO, Pb 3 0 4 , Nb 2 o 5 、 Ta 2 o 5 and MnO 2 Mix it in absolute ethanol, put it into a ball mill tank and use zirconia balls to roll and grind for 18 hours to obtain ball mill material.

[0035] S2, secondary ball milling, drying the absolute ethanol in the ball mill, and keeping the dried powder at 950° C. for 1 hour for pre-sintering to obtain pre-sintered powder. Secondary ball milling of pre-sintered p...

Embodiment 3

[0040] This example provides a method for preparing a lead zirconate titanate-lead niobate tantalate magnesium piezoelectric ceramic material, which meets the chemical composition of 0.98Pb 0.97 Sr 0.03 (Zr 0.52 Ti 0.48 )O 3 -0.02Pb(Mg 1 / 3 (Nb 0.8 Ta 0.2 ) 2 / 3 )O 3 +0.3wt%Sb 2 o 3 +0.1wt%MnO 2 modified piezoelectric ceramic materials.

[0041] The method described in this embodiment includes the following steps:

[0042] S1, ball milling, weigh the analytically pure raw material SrCO according to the above metering ratio 3 , ZrO 2 、TiO 2 , Sb 2 o 3 , MgO, Pb 3 0 4 , Nb 2 o 5 、 Ta 2 o 5 and MnO 2 Mix it in absolute ethanol, put it into a ball mill tank and use zirconia balls to roll and grind for 30 hours to obtain ball mill material.

[0043] S2, secondary ball milling, drying the absolute ethanol in the ball mill, and keeping the dried powder at 950° C. for 1 hour for pre-sintering to obtain pre-sintered powder. Secondary ball milling of pre-sintered ...

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PUM

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Abstract

The invention discloses a lead zirconate titanate-lead tantalum magnesium niobate piezoelectric ceramic material and a preparation method thereof, the material takes a lead zirconate titanate Pb (ZruTi1-u) O3 solid solution as a main component, a second component Pb (Mg1 / 3 (NbzTa1-z) 2 / 3) O3 is added, and antimony trioxide Sb2O3 and manganese dioxide MnO2 are doped at the same time; strontium ions are doped at the A site of Pb (ZruTi1-u) O3 to replace part of lead ions; the stoichiometric formula is (1-y) Pb1-xSrx (ZruTi1-u) O3-yPb (Mg1 / 3 (NbzTa1-z) 2 / 3) O3 + v wt% Sb2O3 + w wt% MnO2, x and y are molar ratios, x is more than 0 and less than or equal to 0.3, y is more than 0 and less than or equal to 0.4, z is more than 0 and less than or equal to 0.8, u is more than 0.2 and less than or equal to 0.8, v is more than 0 and less than or equal to 0.4, and w is more than 0 and less than or equal to 0.2. The material has extremely low dielectric loss and dielectric constant, keeps better piezoelectric property, and can greatly reduce energy loss in an electromechanical transformation process. Meanwhile, the material has higher Curie temperature, so that the material has the possibility of being applied in a wider temperature range.

Description

technical field [0001] The invention relates to the field of piezoelectric ceramic materials, in particular to a lead zirconate titanate-lead niobium tantalate magnesium oxide piezoelectric ceramic material and a preparation method thereof. Background technique [0002] With the wide application of piezoelectric ceramics in modern industrial life, it is necessary to develop piezoelectric ceramics with corresponding specific functions to meet the needs of users in different usage environments. Generally speaking, piezoelectric ceramics can be divided into two categories according to their electrical properties: soft piezoelectric ceramics and hard piezoelectric ceramics. Soft piezoelectric ceramics are mainly characterized by high piezoelectric constant, low mechanical quality factor and high dielectric loss; while hard piezoelectric ceramics are mainly characterized by high mechanical quality factor and ultra-low dielectric loss, but generally The piezoelectric constant is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/491C04B35/493C04B35/622
CPCC04B35/491C04B35/493C04B35/622C04B2235/3251C04B2235/3206C04B2235/3296C04B2235/3294C04B2235/3213C04B2235/3267
Inventor 丁忆余洋王海圣许静玲翁新全柯银鸿刘瑞林
Owner XIAMEN NIELL ELECTRONICS
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