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Composite system high-voltage low-loss piezoelectric ceramic and preparation method thereof

A technology of piezoelectric ceramics and high voltage, applied in the field of piezoelectric ceramics, can solve problems such as low piezoelectric constant, failure to meet application needs, and large loss, and achieve reduced dielectric loss, high practical value, and excellent piezoelectric constant Effect

Inactive Publication Date: 2022-02-11
XIAMEN NIELL ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the soft PZT piezoelectric ceramic has a high piezoelectric constant, its loss is also large; although the hard PZT piezoelectric ceramic has a low loss, its piezoelectric constant is also low
Therefore, traditional PZT piezoelectric ceramic materials cannot meet the needs of many low-noise applications

Method used

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  • Composite system high-voltage low-loss piezoelectric ceramic and preparation method thereof
  • Composite system high-voltage low-loss piezoelectric ceramic and preparation method thereof
  • Composite system high-voltage low-loss piezoelectric ceramic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation formula molecular formula is:

[0038] xBi(Zr 1 / 2 Ni 1 / 2 )O 3 -(0.1-x)Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -0.9Pb(Zr 0.51 Ti 0.49 )O 3 +y%CeO 2 , x=0.01, y=0 modified piezoelectric ceramics.

[0039] Namely: 0.01Bi(Zr 1 / 2 Ni 1 / 2 )O 3 -0.09Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -0.9Pb(Zr 0.51 Ti 0.49 )O 3

[0040] The preparation method is:

[0041] Step 1: Using NiO, Bi 2 o 3 , ZrO 2 , ZnO, Nb 2 o 5 , Pb 3 o 4 、TiO 2 , CeO2 As raw materials, according to the stoichiometric ratio of Ni, Bi, Zr, Zn, Nb, Pb, Ti, Ce in the formula formula;

[0042] Step 2: Put the prepared powder into the ball mill tank of the planetary ball mill and mix ball milling for 13 hours. The speed of the planetary ball mill is 250r / min to obtain the powder after ball milling;

[0043] Step 3: pre-calcining the ball-milled powder at 850°C for 3 hours to obtain the pre-calcined powder;

[0044] Step 4: Perform secondary ball milling on the pre-burned powder for 24 hours, then take the mate...

Embodiment 2

[0051] Preparation formula molecular formula is:

[0052] xBi(Zr 1 / 2 Ni 1 / 2 )O 3 -(0.1-x)Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -0.9Pb(Zr 0.51 Ti 0.49 )O 3 +y%CeO 2 , x=0.02, y=0 modified piezoelectric ceramics.

[0053] Namely: 0.02Bi(Zr 1 / 2 Ni 1 / 2 )O 3 -0.08Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -0.9Pb(Zr 0.51 Ti 0.49 )O 3

[0054] The preparation method is:

[0055] Step 1: Using NiO, Bi 2 o 3 , ZrO 2 , ZnO, Nb 2 o 5 , Pb 3 o 4 、TiO 2 , CeO 2 As raw materials, according to the stoichiometric ratio of Ni, Bi, Zr, Zn, Nb, Pb, Ti, Ce in the formula formula;

[0056] Step 2: Put the prepared powder into the ball mill tank of the planetary ball mill and mix ball milling for 13 hours. The speed of the planetary ball mill is 250r / min to obtain the powder after ball milling;

[0057] Step 3: pre-calcining the ball-milled powder at 850°C for 3 hours to obtain the pre-calcined powder;

[0058] Step 4: Perform secondary ball milling on the pre-burned powder for 24 hours, then take the ma...

Embodiment 3

[0065] Preparation formula molecular formula is:

[0066] xBi(Zr 1 / 2 Ni 1 / 2 )O 3 -(0.1-x)Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -0.9Pb(Zr 0.51 Ti 0.49 )O 3 +y%CeO 2 , x=0.04, y=0 modified piezoelectric ceramics.

[0067] Namely: 0.04Bi(Zr 1 / 2 Ni 1 / 2 )O 3 -0.06Pb(Zn 1 / 3 Nb 2 / 3 )O 3 -0.9Pb(Zr 0.51 Ti 0.49 )O 3

[0068] The preparation method is:

[0069] Step 1: Using NiO, Bi 2 o 3 , ZrO 2 , ZnO, Nb 2 o 5 , Pb 3 o 4 、TiO 2 , CeO 2 As raw materials, according to the stoichiometric ratio of Ni, Bi, Zr, Zn, Nb, Pb, Ti, Ce in the formula formula;

[0070] Step 2: Put the prepared powder into the ball mill tank of the planetary ball mill and mix ball milling for 13 hours. The speed of the planetary ball mill is 250r / min to obtain the powder after ball milling;

[0071] Step 3: pre-calcining the ball-milled powder at 850°C for 3 hours to obtain the pre-calcined powder;

[0072] Step 4: Perform secondary ball milling on the pre-burned powder for 24 hours, then take the ma...

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Abstract

The invention discloses a composite system high-voltage low-loss piezoelectric ceramic and a preparation method thereof, and relates to the technical field of piezoelectric ceramics, bismuth zirconate nickel Bi (Ni1 / 2Zr1 / 2) O3 with a perovskite structure and lead zincate niobium Pb (Zn1 / 3Nb2 / 3) O3 are introduced into a lead zirconate titanate system to form a solid solution with the perovskite structure of the composite system with lead zirconate titanate; the formula molecular formula of the material is xBi(Zr1 / 2Ni1 / 2)O3-(0.1-x)Pb(Zn1 / 3Nb2 / 3)O3-0.9Pb(Zr0.51Ti0.49)O3+y%CeO2. After the technical scheme is adopted, the piezoelectric ceramic can reduce dielectric loss, has excellent piezoelectric constant and excellent piezoelectric property, and has high practical value in the field of low-noise requirements.

Description

technical field [0001] The invention relates to the technical field of piezoelectric ceramics, in particular to a composite system high-voltage, low-loss piezoelectric ceramic and a preparation method thereof. Background technique [0002] Piezoelectric ceramics are a class of functional materials that realize the mutual coupling and conversion (energy conversion) of mechanical energy and electrical energy. It has a very wide range of applications in advanced manufacturing, electronic information, energy detection and national defense, such as piezoelectric actuators, ultrasonic motors, deep underground acoustic wave detection, transducers and vibration sensors, etc. Piezoelectric ceramic materials are sensitive to the entire system Components and Core Components. Therefore, the performance parameters of piezoelectric ceramic materials, especially the piezoelectric performance and dielectric loss of the material, directly determine the quality of the system performance. A ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/493C04B35/622C04B41/88H01L41/187H10N30/853
CPCC04B35/493C04B35/622C04B41/5116C04B41/88C04B41/009C04B2235/3279C04B2235/3298C04B2235/3284C04B2235/3249C04B2235/3255C04B2235/3248C04B2235/3232C04B2235/3296C04B2235/3229H10N30/853
Inventor 姜旭宇余洋王海圣刘瑞林柯银鸿翁新全许静玲
Owner XIAMEN NIELL ELECTRONICS
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