Lead niobium antimonite-containing five-element piezoelectric ceramics material for driver and preparation thereof

A technology of piezoelectric ceramics and lead niobium antimonate, which is applied in the manufacture/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, circuits, etc., and can solve the problems of rare systems problems, to achieve the effect of high yield, good repeatability and simple process steps

Inactive Publication Date: 2008-11-12
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

but study pentads and get high d at the same time 33 , high K p system is rare

Method used

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  • Lead niobium antimonite-containing five-element piezoelectric ceramics material for driver and preparation thereof
  • Lead niobium antimonite-containing five-element piezoelectric ceramics material for driver and preparation thereof
  • Lead niobium antimonite-containing five-element piezoelectric ceramics material for driver and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Take the used raw material 100g of producing product of the present invention as example, when x is 0.02, y is 0.01, z is 0.38, use general formula 0.02Pb(Mg 1 / 2 W 1 / 2 )O 3 -0.01Pb(Sb 1 / 2 Nb 1 / 2 )O 3 -0.38Pb(Ni 1 / 3 Nb 2 / 3 )O 3 -Pb 0.59 (Zr 0.38 Ti 0.21 )O 3 The expressed raw materials and their weight proportions are:

[0044] Pb 3 o 4 67.22g

[0045] ZrO 2 13.77g

[0046] TiO 2 4.93g

[0047] Mg(OH) 2 · MgCO 3 ·6H 2 O 0.3g

[0048] WO 3 0.68g

[0049] Sb 2 o 5 0.22g

[0050] Nb 2 o 5 10.10g

[0051] NiO 2.78g

[0052] Its preparation method is as follows:

[0053] 1. Ingredients synthesis

[0054] Pb stoichiometrically according to the general formula above 3 o 4 , ZrO 2 、TiO 2 , Mg(OH) 2 · MgCO 3 ·6H 2 O. WO 3 , Sb 2 o 5 , Nb 2 o 5 , NiO mixed, put into a nylon tank, add 50g of absolute ethanol as a dispersant and ...

Embodiment 2

[0072] Take the used raw material 100g of producing product of the present invention as example, when x is 0.005, y is 0, z is 0.30, use general formula 0.005Pb (Mg 1 / 2 W 1 / 2 )O 3 -0.405Pb(Ni 1 / 3 Nb 2 / 3 )O 3 -Pb 0.59 (Zr 0.30 Ti 0·29 )O 3 The expressed raw materials and their weight proportions are:

[0073] Pb 3 o 4 64.66g

[0074] ZrO 2 10.46g

[0075] TiO 2 6.56g

[0076] Mg(OH) 2 · MgCO 3 ·6H 2 O 0.07g

[0077] WO 3 0.16g

[0078] Sb 2 o 50g

[0079] Nb 2 o 5 15.23g

[0080] NiO 2.86g

[0081] Its preparation method is as follows:

[0082] The raw materials were put into a nylon tank, 50 g of absolute ethanol was added as a dispersant, and zirconia balls were used as a ball milling medium. The other steps of this process step were the same as in Example 1. In step 2 of the pre-firing process, the ground material is placed ...

Embodiment 3

[0084] Take the used raw material 100g of producing product of the present invention as example, when x is 0.07, y is 0.04, z is 0.50, use general formula 0.07Pb(Mg 1 / 2 W 1 / 2 )O 3 -0.04Pb(Sb 1 / 2 Nb 1 / 2 )]O 3 -0.30Pb(Ni 1 / 3 Nb 2 / 3 )O 3 -Pb 0.59 (Zr 0.50 Ti 0·09 )O 3 The expressed raw materials and their weight proportions are:

[0085] Pb 3 o 4 68.16g

[0086] ZrO 2 18.37g

[0087] TiO 2 2.14g

[0088] Mg(OH) 2 · MgCO 3 ·6H 2 O 1.05g

[0089] WO 3 2.42g

[0090] Sb 2 o 5 0.87g

[0091] Nb 2 o 5 4.76g

[0092] NiO 2.23g

[0093] Its preparation method is as follows:

[0094] The raw materials are packed into a nylon tank, and 50 g of absolute ethanol is added as a dispersant, which is a ball milling medium. The other steps of this process step are the same as in Example 1. In step 2 of the pre-fi...

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Abstract

The invention discloses a pentabasic piezoelectric ceramic material containing antimonite lead for a drive, consisting of a material expressed by a general formula of xPb ( Mg1/2W1/2)O3-yPb (Sb1/2Nb1/2)O3- ( 0.41-x-y)Pb ( Ni1/3 Nb2/3) O3-Pb0.59 (Zr z Ti 0.59-x )O3, in the formula, the x is more than or equal to 0.05 and less than or equal to 0.07, the y is more than 0 or equal to o and less than or equal to 0.04, and the z is more than or equal to 0.30 and less than or equal to 0.50. A preparing method comprises the processing steps of ingredient synthesis, precalcination, granulation, pressing, evacuation, sintering, silver calcination and polarization, and the processing steps are simple, the repeatability is good and the rate of finished products is high. Piezoelectric ceramic made by the invention passes the test, the tested result shows that the dielectric coefficient is between 600 and 850 pc/N, the electromechanical coupling factor is between 0.55 and 0.75, and the relative dielectric constant in room temperature is between 3500 and 5000. The pentabasic piezoelectric ceramic material can be used for preparing a vibration transducer, a controller shell, a dynamic fuel injected nozzle, a high-power ultrasonic device, a high-temperature and high-frequency vibrometer, a high-temperature flowmeter, a high-temperature resistant swarming buzzer, a high-temperature sensor, a drive and so on arranged in an automobile.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a piezoelectric device or an electrostrictive device. Background technique [0002] Piezoelectric material is a functional ceramic material that can convert mechanical energy and electrical energy into each other. It is a material with piezoelectric effect. It can generate an electric field due to mechanical deformation, and can also generate mechanical deformation due to the action of an electric field. This inherent electromechanical coupling effect makes piezoelectric materials widely used in engineering, and the new generation of piezoelectric materials also has conditioned reflection and command analysis capabilities. This unique function of piezoelectric materials makes them have broader application prospects in smart material systems. [0003] In recent years, piezoelectric materials have been used more and more in the field of automotive technology to ach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/491C04B35/495C04B35/622C04B41/88H01L41/187H01L41/24H01L41/39
Inventor 杨祖培晁小练
Owner SHAANXI NORMAL UNIV
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