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A niobium-nickel-lead zirconate titanate piezoelectric ceramic doped with manganese lead antimonate

A technology of lead manganese antimonate and piezoelectric ceramics, which is applied in the direction of piezoelectric/electrostrictive/magnetostrictive devices, circuits, electrical components, etc., can solve problems such as inability to fit, limited material performance parameters, etc., and achieve improved piezoelectricity coefficient and mechanical properties, and the effect of improving machinability

Active Publication Date: 2017-03-29
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the material performance parameters analyzed in this patent are limited, including only three-point bending strength and electromechanical coupling coefficient (k p ), it is not suitable for the application of this type of ceramics in other occasions, such as: micro-displacement drivers, sensors, etc.

Method used

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  • A niobium-nickel-lead zirconate titanate piezoelectric ceramic doped with manganese lead antimonate
  • A niobium-nickel-lead zirconate titanate piezoelectric ceramic doped with manganese lead antimonate
  • A niobium-nickel-lead zirconate titanate piezoelectric ceramic doped with manganese lead antimonate

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Embodiment 1

[0026] The present invention analyzes pure grade Pb 3 o 4 , ZrO 2 、TiO 2 , MnO 2 , Sb 2 o 3 , NiO, Nb 2 o 5 As the raw material, according to the chemical formula (1-x)Pb(Ni 1 / 3 Nb 2 / 3 ) 0.5 Zr y Ti 0.5-y o 3 -xPbMn 1 / 3 Sb 2 / 3 o 3 (where y=0.14, x=0.01, Pb 3 o 4Excessive 1.8wt%) weighed the raw materials, put them into a ball mill jar, and used absolute ethanol as the medium. After ball milling for 24 hours, the obtained slurry was put into an oven for drying, passed through a 40-mesh sieve, and pre-fired at 860° C. for 2 hours. The powder obtained by pre-calcination is crushed, ball milled, dried and passed through a 120-mesh sieve, then a certain amount of 3wt% PVA aqueous solution is added to granulate, molded, stayed at 600°C for 2h to debinding, and then sintered at 1250°C for 2h. figure 2 The scanning electron microscope image of the cross-section of the ceramic obtained by sintering shows that the interface is dense, the porosity is low, the grain siz...

Embodiment 2

[0028] The present invention analyzes pure grade Pb 3 o 4 , ZrO 2 、TiO 2 , MnO 2 , Sb 2 o 3 , NiO, Nb 2 o 5 As the raw material, according to the chemical formula (1-x)Pb(Ni 1 / 3 Nb 2 / 3 ) 0.5 Zr y Ti 0.5-y o 3 -xPbMn 1 / 3 Sb 2 / 3 o 3 (where y=0.14, x=0.02, Pb 3 o 4 Excessive 1.8wt%) weighed the raw materials, put them into a ball mill jar, and used absolute ethanol as the medium. After ball milling for 24 hours, the obtained slurry was put into an oven for drying, passed through a 40-mesh sieve, and pre-fired at 860° C. for 2 hours. The powder obtained by pre-calcination is crushed, ball milled, dried and passed through a 120-mesh sieve, then a certain amount of 3wt% PVA aqueous solution is added to granulate, molded, stayed at 600°C for 2h to debinding, and then sintered at 1250°C for 2h. figure 1 The XRD pattern of the ceramic obtained by sintering shows that the ceramic shows a pure perovskite structure without pyrochlore impurity phase. Polish the fired pie...

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Abstract

The invention discloses a lead manganate antimonate (PMS) doped niobium nickel-lead zirconate titanate piezoelectric ceramic (PNN-PZT) having the raw material formula: (1-x)Pb(Ni[1 / 3]Nb[2 / 3])[0.5]Zr[y]Ti[0.5-y]O[3]-xPb(Mn[1 / 3]Sb[2 / 3])O[3], wherein in the formula, x and y represent the molar content and have numerical values respectively being x=0.0-0.06 and y=0.10-0.20. A traditional solid phase synthesis process is adopted, a pre-sintering temperature is 800-900 DEG C, a sintering temperature is 1000-1300 DEG C, and a novel piezoelectric ceramic material is obtained, wherein the material has high piezoelectric coefficient (d33<*>=1000 pm / V) and excellent mechanical properties (E=120 GPa, and K1C=1.44 Mpa.m<1 / 2>). The piezoelectric ceramic based on lead zirconate titanate has high piezoelectric coefficient and excellent mechanical properties. The novel piezoelectric ceramic is mainly used in the fields of micrometric displacement actuators, piezoelectric sensors, transducers and the like, and has great market values.

Description

technical field [0001] The invention relates to a piezoelectric ceramic material used in the electronic component industry, in particular to a niobium-nickel-lead zirconate titanate-based piezoelectric ceramic and a preparation method thereof. Background technique [0002] Piezoelectric ceramics are an extremely important class of electronic functional materials, widely used in micro-displacement drivers, piezoelectric sensors, ultrasonic transducers, capacitors, filters, etc. The performance of piezoelectric ceramics directly affects the performance of devices, so the research on the performance of raw materials is very important. [0003] In the 1940s, people discovered barium titanate ceramics (BaTiO2) when studying high dielectric titanates. 3 ). As a polycrystalline material, it has a large piezoelectric constant after being treated by an electric field. Barium titanate is the earliest piezoelectric ceramic material discovered, and it is also the first unit piezoelect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/187C04B35/49C04B35/622
Inventor 周佳骏张颖李海龙刘红方敬忠
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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