Method for preparing PZT ferroelectric ceramic with periodic pore structure through 3D printing

A ferroelectric ceramic, 3D printing technology, applied in the direction of additive processing, etc., to achieve the effect of simple preparation process, controllable uniform distribution, and controllable porosity

Active Publication Date: 2020-12-04
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, 3D technology is widely used in the field of porous active bioceramics and complex structural ceramics, and there are no relevant technical reports in the field of electronic ceramics.

Method used

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  • Method for preparing PZT ferroelectric ceramic with periodic pore structure through 3D printing
  • Method for preparing PZT ferroelectric ceramic with periodic pore structure through 3D printing
  • Method for preparing PZT ferroelectric ceramic with periodic pore structure through 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1 3D printing of PZT ferroelectric ceramics with periodic pore structure in triangular (rhombic) distribution According to the designed periodic triangular (rhombic) micropore distribution structure: first print a dense layer, and build a triangular (rhombic) distribution on the dense layer The porous layer is then constructed into a dense layer to form a periodic porous ceramic unit; then different units are stacked layer by layer, or different units are combined to obtain a 3D scaffold of porous PZT ferroelectric ceramics with the target periodic pore structure.

[0044] Specifically, use drawing software such as 3dMax to design a cube model with a height of 4.48 cm and a length and width of 1 cm, write corresponding programs, and export it as an stl file. Utilizes the fourth generation 3D Bioplotter TM The software that comes with the equipment slices it. The thickness of the slice is 0.32mm, and there are 14 layers in total, of which the first and second lay...

Embodiment 2

[0050] Example 2 3D printing of PZT ferroelectric ceramics with periodic pore structure in quadrilateral distribution According to the designed periodic quadrilateral microporous distribution structure: first print a dense layer, build a porous layer with periodic quadrilateral distribution on the dense layer, and then build a dense layer to form a periodic porous ceramic unit; then different units are stacked layer by layer, or different units are combined to obtain a 3D scaffold of porous PZT ferroelectric ceramics with the target periodic pore structure.

[0051] Specifically, use drawing software such as 3dMax to design a cube model with a height of 4.48 cm and a length and width of 1 cm, write corresponding programs, and export it as an stl file. Utilizes the fourth generation 3D Bioplotter TM The software that comes with the equipment slices it. The thickness of the slice is 0.32mm, and there are 14 layers in total. Among them, the 1st-5th layer and the 9th-14th layer ar...

Embodiment 3

[0056] Example 3 3D printing PZT ferroelectric ceramics with hexagonal distribution of periodic pores According to the designed periodic hexagonal micropore distribution structure: first print the dense layer, and build periodic hexagonal distribution of pores on the dense layer layer, and then build a dense layer to form a periodic porous ceramic unit; then different units are superimposed layer by layer, or different unit combinations, to obtain a 3D scaffold of porous PZT ferroelectric ceramics with the target periodic pore structure.

[0057] Specifically, use drawing software such as 3dMax to design a cube model with a height of 4.48 cm and a length and width of 1 cm, write corresponding programs, and export it as an stl file. Utilizes the fourth generation 3D Bioplotter TM The software that comes with the equipment slices it, the thickness of the slice is 0.32mm, a total of 1 layer, of which the 1st-3rd layer and the 8th-10th layer are dense layers, and the middle 4 laye...

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Abstract

The invention relates to a method for preparing PZT ferroelectric ceramic with a periodic pore structure through 3D printing, which comprises the following steps: (1) dispersing PZT powder and a binder in a solvent to obtain PZT slurry; (2) designing by utilizing drawing software to obtain a ceramic green body model with a periodic hole distribution structure; (3) extruding the PZT slurry into fibers through a printing needle according to the ceramic green body model, and then performing layer-by-layer printing and drying to form a ceramic green body with a periodic pore structure; and (4) carrying out rubber discharging and sintering on the obtained ceramic green body to obtain the PZT ferroelectric ceramic with the periodic pore structure.

Description

technical field [0001] The invention relates to a method for preparing PZT ferroelectric ceramics with a periodic pore structure by 3D printing, which belongs to the cross field of 3D printing and functional ceramics. Background technique [0002] Porous ceramics are an important class of ceramic materials with pores as the main feature. They can be used to prepare various filters, separation devices, fluid distribution components, mixing components, throttling components, etc., and can also be made into various porous electrodes and catalyst carriers. , heat exchangers, gas sensors, etc., have many applications in metallurgy, chemical industry, petroleum, energy, environmental protection, food, medicine, biology and other industries. [0003] In the field of functional ceramics, the introduction of pores can also bring unexpected beneficial effects. The introduction of 30% volume fraction of open pores can increase the humidity sensitivity by an order of magnitude, while 1...

Claims

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Application Information

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IPC IPC(8): C04B35/491C04B35/622C04B35/638B33Y70/10B33Y10/00
CPCB33Y10/00B33Y70/10C04B35/491C04B35/622C04B35/638C04B2235/3251C04B2235/6026C04B2235/6562C04B2235/6567C04B2235/77
Inventor 聂恒昌贾继才董显林王根水
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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