Low temperature sintered PMMSN titanic acid piezoelectric ceramic material and preparation method thereof

A niobium-magnesium-manganese-antimony-zirconium-titanic acid, low-temperature sintering technology, applied in the field of piezoelectric ceramics and its manufacturing, can solve problems such as deterioration of piezoelectric and dielectric properties, and achieve excellent piezoelectric and dielectric properties, low sintering temperature, and stable process. Effect

Inactive Publication Date: 2006-07-19
HUBEI UNIV
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AI Technical Summary

Problems solved by technology

One of the problems that people encounter in the process of low-temperature sintering is that due to the addition of low-melting point additives, it is easy to produce different phases of non-ferroelectric phases, which greatly deteriorates the piezoelectric dielectric properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] According to the following formula Pb(Mg 1 / 3 Nb 2 / 3 ) 0.04 (Mn 1 / 2 Nb 2 / 3 ) 0.032 (Mn 1 / 3 Sb 2 / 3 ) 0.008 Zr 0.46 Ti 0.46 o 3

[0017] +0.6wt%CdO+0.1wt%SiO 2

[0018] Table 1 shows the performance comparison of the five-element piezoelectric ceramics prepared by the above method under the combination of different proportions of low-temperature additives.

[0019] Reality

[0020] It can be seen from the table that the material has excellent piezoelectric and dielectric properties under the sintering temperature of 850-950°C, and the sintered sample at 900°C has the best performance, which is shown in the aspect of low-temperature co-fired laminated power piezoelectric ceramic devices. A good application prospect.

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Abstract

The presented composite low-melting additive of CdO and SiO2 in quinary-series piezoelectric ceramic material has preparation formula as Pb(Mg1 / 3Nb2 / 3)a (Mn1 / 3Nb2 / 3)b (Mn1 / 3Sb2 / 3)c ZrdTieO3+0.6wt%CdO+0.1wt%SiO2 (wherein, 0<=c<=0.1, 0.08<=a+b<=0.14, 076<=d+e<=0.92, a+b+c+d+e=1, 0.3<=f<=2 and 0<=g<=0.3) and super property with traditional technique to reduce PbO volatilization and release environmental pollution at maximal limit for large-scale production.

Description

technical field [0001] The invention relates to a low-temperature sintered five-element lead niobium-magnesium-manganese-antimony-zirconate titanate (PMMSN for short) piezoelectric ceramic material and a preparation method thereof, belonging to the field of piezoelectric ceramics and its manufacture. Background technique [0002] Piezoelectric ceramics are widely used functional ceramic materials, and their sintering temperature is mostly at 1250°C. At this temperature, PbO volatilizes seriously, which makes the chemical dosage ratio deviate, impurity phases that deteriorate piezoelectric properties appear, product performance decreases, and the environment is polluted. The five-element lead niobium magnesium manganese antimony zirconate titanate (PMMSN) piezoelectric ceramic material is a combination of the ternary lead manganese antimony zirconate titanate piezoelectric ceramic with good stability and the quaternary lead niobium magnesium niobium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/472C04B35/491C04B35/493C04B35/622C04B35/64
Inventor 周桃生李剑魏念黄荣厦柴荔英
Owner HUBEI UNIV
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