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Piezoelectric ceramic material and piezoelectric ceramic vibrator manufactured by same

A piezoelectric ceramic and piezoelectric ceramic sheet technology, applied in the field of material science, can solve the problems of short service life and high price, and achieve the effects of long service life, not easy to break and burn out, and improve service life and detection range.

Inactive Publication Date: 2012-12-12
汕头市创新科技电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the present invention provides a piezoelectric vibrator made of a piezoelectric ceramic material, which can effectively solve the technical problem of high price and short service life in the prior art.

Method used

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  • Piezoelectric ceramic material and piezoelectric ceramic vibrator manufactured by same
  • Piezoelectric ceramic material and piezoelectric ceramic vibrator manufactured by same
  • Piezoelectric ceramic material and piezoelectric ceramic vibrator manufactured by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 Piezoelectric ceramic material and preparation method of the present invention

[0048] The present invention provides a kind of new piezoelectric ceramic material, and the chemical formula of this piezoelectric ceramic material is Pb(Zn 1 / 3 Nb 2 / 3 ) 0.10 (Sn 1 / 3 Nb 2 / 3 ) 0.08 Ti 0.415 Zr 0.405 o 3 . Its main material composition and weight ratio are: trilead tetroxide (Pb 3 o 4 )67.9%, zirconia (ZrO 2 ) 15.0%, titanium oxide (TiO 2 )10.2%, niobium pentoxide (Nb 2 o 5 ) 4.76%, zinc oxide (ZnO) 0.74%, tin oxide (SnO 2 ) 1.4%. In addition, the piezoelectric ceramic material also contains 0.5-1.0% manganese carbonate (MnCO 3 ) and 0.4-0.6% antimony trioxide (Sb 2 o 3 ). The preparation method of the piezoelectric ceramic material is as follows:

[0049] 1) Ingredients: Trilead tetroxide, zirconium dioxide, titanium dioxide, niobium pentoxide, zinc oxide, manganese carbonate, antimony trioxide and tin oxide were dried separately, and weighed...

Embodiment 2

[0055] Embodiment 2 Performance comparison between the piezoelectric ceramic material of the present invention and the piezoelectric material of the prior art

[0056] The performance of piezoelectric materials determines the scope of use of piezoelectric materials, so the performance test of piezoelectric materials is a necessary step. Conventional performance test indicators mainly include dielectric loss, relative permittivity, electromechanical coupling coefficient, mechanical quality factor, piezoelectric constant, Curie temperature and other indicators. Its definition is as follows:

[0057] A. Dielectric loss refers to the energy loss caused inside the insulating material due to the hysteresis effect of dielectric conductance and dielectric polarization under the action of an electric field;

[0058] B. Relative permittivity: When the medium is applied with an electric field, it will generate induced charges and weaken the electric field. The ratio of the original appl...

Embodiment 3

[0079]Example 3 The piezoelectric ceramic vibrator prepared by using the piezoelectric ceramic material of the present invention and its preparation process

[0080] A piezoelectric ceramic vibrator prepared by using the above piezoelectric ceramic material, the piezoelectric ceramic vibrator includes the piezoelectric ceramic material described in Embodiment 1 and silver electrodes arranged on both sides of the piezoelectric ceramic material. Such as figure 1 As shown, the piezoelectric ceramic vibrator is composed of a piezoelectric ceramic material (piezoelectric ceramic sheet) 2, a silver electrode 1 and a silver electrode 3 arranged on the surface of the piezoelectric ceramic material, and a metal thin film 4 connecting the silver electrode 1 and the silver electrode 3 constitute, and the metal film 4 has a plating layer.

[0081] The preparation process of the piezoelectric ceramic vibrator is as follows: figure 2 As shown, the specific details are as follows:

[008...

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Abstract

The invention provides a piezoelectric ceramic material and a piezoelectric vibrator manufactured by the same. The piezoelectric ceramic material has four components of niobium zinc acid lead, niobium tin acid lead, lead zirconate and lead titanate. The piezoelectric ceramic material contains main components represented by a chemical general formula Pb(Zn1 / 3Nb2 / 3)x(Sn1 / 3Nb2 / 3)yTizZr1-x-y-zO3. Performance test proves that the material is superior to like materials in the country and approaches or achieves world standard in relative dielectric constant, piezoelectric constant and mechanical quality factor. The piezoelectric ceramic vibrator prepared by the piezoelectric ceramic material remarkably prolongs service life and accuracy, so that the piezoelectric ceramic material has wide application prospect.

Description

technical field [0001] The invention relates to a piezoelectric ceramic material and a piezoelectric ceramic vibrator made of the same, belonging to the field of material science. Background technique [0002] Since the discovery of PZT lead zirconate titanate piezoelectric ceramics in 1954, many countries such as the United States, Japan, and the Netherlands have conducted detailed research on the system, and with the deepening of development, a series of PZT piezoelectric ceramics with superior performance have been derived. The application range of ceramic materials and piezoelectric ceramic materials has also been greatly expanded. Among them, based on lead zirconate titanate, ternary and quaternary piezoelectric ceramics improved with various elements also came into being. In 1965, Matsushita Electric Company of Japan took Pb(Mg1 / 3Nb2 / 3)03 as the first Three components were added to PZT to make the first ternary ceramics. After research, it was found that adding some o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/493C04B35/622C04B41/90H01L41/187H03H9/02H10N30/853
Inventor 王伟
Owner 汕头市创新科技电子有限公司
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