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A kind of lanthanum cerium composite zirconate titanate ceramic material and preparation method thereof

A ceramic material, zirconate titanate technology, applied in electrical components, piezoelectric/electrostrictive/magnetostrictive devices, circuits, etc., can solve problems such as composite rare earth zirconate titanate ceramic materials, and achieve reduction environmental hazards

Active Publication Date: 2015-08-19
浙江枫翎新材料科技有限公司
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Problems solved by technology

But there is no report about composite rare earth zirconate titanate ceramic materials

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Embodiment Construction

[0018] The present invention will be further described below.

[0019] In the composite rare earth zirconate titanate ceramic material of the present invention, the chemical formula of the material is: La x Ce 1-x Zr 0.5 Ti 0.5 o 3 (1>x>0). Its preparation method is as follows:

[0020] 28.4 g of stearic acid was weighed and placed in a beaker, heated to about 70 °C on a magnetic stirring heater, heated and stirred for 30 min, and then completely melted to form a solution.

[0021] At the same time, 3.8x g of La (NO 3 ) 3 ?3H 2 O, 4.34(1-x) g Ce(NO 3 ) 3 ?6H 2 O and 2.145 g of Zr(NO 3 ) 4 ?5H 2O was dissolved in deionized aqueous solution to form a solution, and magnetically stirred at 70°C for 30 minutes until it melted to form a clear solution; slowly added the solution to the stearic acid solution and mixed, then increased the stirring speed to 1800r / min, stirred for 2 hours, and the mixed solution After dehydration completely forms a homogeneous sol, add 1.7...

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Abstract

The invention discloses a composite rare earth zirconate titanate ceramic material. The chemical formula of the material is: LaxCe1-xZr0.5Ti0.5O3, where 1>x>0. The invention also discloses a preparation method of composite rare earth zirconate titanate ceramic material. When x=0.5 and the external electric field is 20V, the Ps of La0.5Ce0.5Zr0.5Ti0.5O3 ≈ 100 μC / cm2; Pr ≈60μC / cm2; Er≈700V / cm. The invention prepares a LaxCe1-xZr0.5Ti0.5O3 composite rare earth zirconate titanate ceramic material in which Pb is replaced by a composite of La and Ce, which reduces the harm of Pb to the environment and can be used in the manufacture of new piezoelectric materials.

Description

technical field [0001] The invention relates to a composite rare earth zirconate titanate ceramic material, in particular to a lanthanum cerium composite zirconate titanate ceramic material and a preparation method thereof. Background technique [0002] After the oxide is made into a polycrystal according to a certain preparation method, the polycrystal is subjected to polarization treatment to make it a ceramic material with piezoelectric effect, that is, piezoelectric ceramics. The biggest functional characteristic of piezoelectric ceramics is the mutual conversion of mechanical energy and electrical energy. As a high-intelligence functional electronic material, the research and development of piezoelectric ceramics has been highly valued by countries all over the world. Due to the continuous improvement of raw materials and processes, the performance of piezoelectric ceramics has been effectively developed, and its applications are becoming more and more widely. The pie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/187C04B35/49C04B35/622H10N30/853
Inventor 王艳萍孟祖奇夏小云袁嫣红胡旭东
Owner 浙江枫翎新材料科技有限公司
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