A low sintering temperature power type piezoelectric ceramic material and its preparation method

A technology of low sintering temperature and piezoelectric ceramics, applied in the field of piezoelectric ceramics, can solve the problems of deteriorating electrical properties of piezoelectric materials and lowering insulation resistivity, and achieve the effects of low cost, reduced sintering shrinkage, and improved fluidity
CN106565239BActive Publication Date: 2020-03-17SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Publication Date
2020-03-17

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Abstract

The invention relates to a low sintering temperature power type piezoelectric ceramic material and a preparation method thereof. The general chemical formula of the piezoelectric ceramic material is: Pb 1‑x M x (Ni 1 / 2 W 1 / 2 ) y (Mn 1 / 3 sb 2 / 3 ) z (Zr e Ti f ) 1‑y‑z O 3 +awt%Fe 2 O 3 +bwt%Sm 2 O 3 +cwt%MnO 2 + dwt%CuO, where: M is Sr 2+ and / or Ba 2+ ; c=0.01~0.4, d=0.1~0.4. The low sintering temperature piezoelectric ceramic material of the present invention has the advantages of low sintering temperature, high piezoelectric performance, high mechanical quality factor, high electromechanical coupling coefficient, moderate dielectric constant and small dielectric loss.
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Description

technical field

[0001] The invention relates to the field of piezoelectric ceramics, in particular to a low sintering temperature power type piezoelectric ceramic material and a preparation method thereof. Background technique

[0002] In recent years, in order to meet the development needs of integrated circuit surface assembly technology, piezoelectric ceramic components are developing in the direction of miniaturization, machine integration, high performance, multi-function and integration. Low-temperature co-fired ceramic technology is used in the surface assembly technology of integrated circuits. On the one hand, it can increase assembly density, reduce volume, and reduce weight. On the other hand, it can improve reliability and performance, thereby shortening the assembly cycle. Laminated ceramics are one of the research hotspots. At present, there are mainly two methods to realize the laminated structure. One is to fire a single piece first, and then bond it to form...

Claims

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