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3-3 type piezoelectric ceramic/cement piezoelectric composite material and preparation method thereof

A technology of piezoelectric composite materials and piezoelectric ceramics, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, material selection for piezoelectric devices or electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive Stretchable devices and other directions can solve problems such as cutting difficulty and achieve good durability, excellent piezoelectric performance, and good compatibility

Active Publication Date: 2016-05-04
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, it is more difficult to cut piezoelectric ceramic blocks into ceramic sheets

Method used

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  • 3-3 type piezoelectric ceramic/cement piezoelectric composite material and preparation method thereof
  • 3-3 type piezoelectric ceramic/cement piezoelectric composite material and preparation method thereof
  • 3-3 type piezoelectric ceramic/cement piezoelectric composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Dissolve 12.5wt% acrylamide monomer and 0.5wt% crosslinking agent methylenebisacrylamide in 87wt% water to make a premix; add lead zirconate titanate ceramic powder to 100m1 premix, ball mill After 12 hours, a lead zirconate titanate ceramic suspension with a solid phase volume fraction of 15% was prepared, that is, the volume of lead zirconate titanate accounted for 15% of the total volume of the slurry after adding the lead zirconate titanate ceramic powder. Add 100 μl of initiator ammonium persulfate solution (35wt%) and 0.5ml of foaming agent propionic acid into the suspension, and stir rapidly to foam. The ceramic foam is poured into the mold, and placed in a low-temperature constant temperature freezing tank at a temperature of -15°C for 20 hours to form. Immediately after the frozen body is taken out, it is placed in an electric drying oven at a temperature of 150°C, and the acrylamide monomer undergoes a curing reaction under the combined action of high temperat...

Embodiment 2

[0036]Dissolve 19.5wt% hydroxyethyl methacrylate monomer and 0.5wt% crosslinking agent methylenebisacrylamide in 80wt% water to make a premix; add niobium magnesium zirconium titanate to 100m1 premix Lead ceramic powder, ball milled for 12 hours to make a suspension of lead niobium magnesium zirconate titanate ceramics with a solid phase volume fraction of 10%, that is, the volume of lead niobium magnesium zirconate titanate occupies 10% of the total volume of the material. Add 150 μl of initiator ammonium persulfate solution (35wt%) and 1.0ml of foaming agent acetic acid into the suspension, and stir rapidly to foam. The ceramic foam is poured into the mold, and placed in a low-temperature constant temperature freezing tank at a temperature of -20°C for 10 hours to form. Immediately after taking out the frozen green body, place it in an electric drying oven at a temperature of 180°C, and the hydroxyethyl methacrylate monomer undergoes a curing reaction under the joint action...

Embodiment 3

[0038] Dissolve 15.5wt% hydroxypropyl methacrylate monomer and 0.5wt% crosslinking agent methylenebisacrylamide in 84wt% water to make a premix; add niobium lithium zirconium titanate to 100m1 premix Lead ceramic powder, ball milled for 12 hours to make a suspension of niobium lithium zirconate lead titanate ceramics with a solid phase volume fraction of 20%, that is, the volume of niobium lithium zirconate lead titanate occupies 20% of the total volume of the material. Add 200 μl of initiator ammonium persulfate solution (35wt%) and 1.5ml of foaming agent propionic acid into the suspension, and stir rapidly to foam. The ceramic foam is poured into the mold, and placed in a low-temperature constant temperature freezing tank at a temperature of -20°C for 18 hours to form. Immediately after taking out the frozen green body, place it in an electric drying oven at a temperature of 150°C, and the hydroxypropyl methacrylate monomer undergoes curing reaction under the joint action o...

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Abstract

The invention discloses a 3-3 type piezoelectric ceramic / cement piezoelectric composite material and a preparation method thereof, belonging to the technical field of a ceramic-based piezoelectric intelligent composite material and preparation thereof. The composite material comprises porous piezoelectric ceramic, cement, an upper electrode and a lower electrode, wherein the porous piezoelectric ceramic is a substrate and also a functional body, the interior and the periphery of the porous piezoelectric ceramic are filled with the cement, and the mass percentage of the piezoelectric ceramic accounts for 50-85%. The preparation method of the 3-3 type piezoelectric ceramic / cement piezoelectric composite material comprises the following steps of taking a short-chain amphiphilic molecule solvent as a foaming agent; combining freeze casting and organic monomer polymerization forming to prepare the porous piezoelectric ceramic with high porosity; and pouring a cement paste by taking the porous piezoelectric ceramic as the substrate to obtain the 3-3 type piezoelectric ceramic / cement piezoelectric composite material. The 3-3 type piezoelectric ceramic / cement piezoelectric composite material prepared according to the invention has the advantages of excellent piezoelectric performance, high compatibility with concrete, high durability and the like.

Description

technical field [0001] The invention relates to a 3-3 type piezoelectric ceramic / cement piezoelectric composite material and a preparation method thereof, and belongs to the technical field of ceramic-based piezoelectric intelligent composite materials and its preparation. Background technique [0002] Many large-scale architectural structures in the field of civil engineering (such as super-high TV towers, long-span bridges, large dams and nuclear power plants, etc.) have the characteristics of high cost, large size, and complex structure, and occupy an important position in national production. Once they fail, It will cause huge property loss and social impact to the country and the people. Therefore, using smart materials to monitor the health of some key structural parts of major civil engineering buildings, check the distribution of stress and strain inside the structure, and evaluate the operating status of the structure can provide credible information for the mainten...

Claims

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Application Information

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IPC IPC(8): H01L41/18H01L41/187H01L41/37
CPCH10N30/852H10N30/8554H10N30/092
Inventor 刘炜董英鸽张国祥王延忠杨金龙
Owner ZHONGBEI UNIV
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