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Preparation method of piezoelectric ferroelectric ceramic material based on 3D printing technology

A ferroelectric ceramic and 3D printing technology, applied in the direction of additive processing, can solve the problems of complicated operation and cumbersome preparation process, and achieve the effect of short production cycle, optimized performance and improved texture.

Pending Publication Date: 2021-12-07
XI AN JIAOTONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tape casting method currently mainly used usually needs a series of steps such as slurry preparation, tape casting, drying, lamination, cutting, debinding, and sintering. The preparation process is cumbersome and the operation is relatively complicated.

Method used

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  • Preparation method of piezoelectric ferroelectric ceramic material based on 3D printing technology
  • Preparation method of piezoelectric ferroelectric ceramic material based on 3D printing technology
  • Preparation method of piezoelectric ferroelectric ceramic material based on 3D printing technology

Examples

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preparation example Construction

[0040] refer to figure 1 , a method for preparing a piezoelectric ferroelectric ceramic material based on 3D printing technology, comprising the following steps:

[0041] Step 1. Prepare lead-based or lead-free piezoelectric ferroelectric ceramic pre-fired powder. The lead-based or lead-free piezoelectric ferroelectric ceramic pre-fired powder is potassium sodium niobate or lead magnesium niobate-lead titanate pre-fired powder one of the body. The particle size of the lead magnesium niobate-lead titanate or potassium sodium niobate calcined powder is 300-600nm.

[0042] Step 2, making the lead-based or lead-free piezoelectric ferroelectric ceramic pre-fired powder into a 3D printing piezoelectric ferroelectric ceramic slurry;

[0043]Specifically, the lead-based or lead-free piezoelectric ferroelectric ceramic pre-fired powder is mixed with photosensitive resin, photoinitiator and dispersant to obtain 3D printing piezoelectric ferroelectric ceramic slurry: 3D printing piezoe...

Embodiment 1

[0058] A method for preparing a piezoelectric ferroelectric ceramic material based on 3D printing technology provided by the present invention specifically includes the following steps:

[0059] Step 1, preparing lead magnesium niobate-lead titanate ceramic calcined powder, the particle size of the prepared lead magnesium niobate-lead titanate ceramic calcined powder is 300nm;

[0060] Step 2, the lead magnesium niobate-lead titanate ceramic pre-fired powder is made into a 3D printing piezoelectric ferroelectric ceramic slurry;

[0061] Specifically, (1) weighing according to the weight percentages of piezoelectric ceramic pre-fired powder, photosensitive resin, and dispersant of 70.8wt%, 27wt%, and 1.5wt%, using a ball mill to mix for 4 hours, the speed of the ball mill is 160 rpm, Obtain premix slurry; (2) weigh 1wt% and 0.7wt% template and photoinitiator according to weight percentage, add in premix slurry, adopt ball mill to mix 1h, ball mill speed is 80 rev / min, obtain 3D...

Embodiment 2

[0072] A method for preparing a piezoelectric ferroelectric ceramic material based on 3D printing technology provided by the present invention specifically includes the following steps:

[0073] Step 1, preparing potassium-sodium niobate-based ceramic calcined powder, the particle size of the prepared potassium-sodium niobate-based ceramic calcined powder is 400nm;

[0074] Step 2, making the potassium-sodium niobate-based ceramic pre-fired powder into a 3D printing piezoelectric ferroelectric ceramic slurry;

[0075] Specifically, the potassium sodium niobate-based ceramic calcined powder, photosensitive resin and dispersant are weighed according to the weight percentages of piezoelectric ceramic calcined powder, photosensitive resin and dispersant of 77wt%, 22wt%, and 0.5wt%, Ball milling and mixing to obtain 3D printing piezoelectric ferroelectric ceramic slurry, adding 3wt% sodium niobate template and 0.5wt% photoinitiator.

[0076] Step 3. Prepare a 3D printed piezoelect...

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Abstract

The invention discloses a preparation method of a piezoelectric ferroelectric ceramic material based on a 3D printing technology. The preparation method comprises the following steps: step 1, preparing lead-based or lead-free piezoelectric ferroelectric ceramic pre-sintered powder; step 2, preparing 3D printing piezoelectric ferroelectric ceramic slurry from the lead-based or lead-free piezoelectric ferroelectric ceramic pre-sintered powder and adding a template accounting for x% of of the ceramic pre-sintered powder, wherein x is larger than 1 and smaller than or equal to 5; step 3, realizing directional arrangement of the template in the powder through a 3D printing photocuring process so as to prepare a 3D-printed piezoelectric ferroelectric ceramic green body; and step 4, degreasing and sintering the 3D-printed piezoelectric ferroelectric ceramic green body to obtain the piezoelectric ferroelectric ceramic material with a texture degree based on the 3D printing technology. According to the method, the mode of scraping via a scraper in a 3D printing process is applied to the directionally-arranged template, and the template with a certain size can be transversely distributed in each layer of the cured green body, so the preparation method of piezoelectric ferroelectric textured ceramic is not limited to a traditional tape casting method any more.

Description

technical field [0001] The invention belongs to the technical field of functional ceramic materials, and in particular relates to a method for preparing piezoelectric ferroelectric ceramic materials based on 3D printing technology. Background technique [0002] Piezoelectric ferroelectric ceramic material is an important functional ceramic material, which is widely used in ultrasonic transducers, drivers, sonar, etc. due to its excellent and stable performance, simple preparation, and mature technology. [0003] The traditional preparation methods of piezoelectric ferroelectric ceramic materials mainly include solid-state reaction method, hydrothermal method, sol-gel method and so on. The preparation period of the traditional preparation method is long. Especially for the preparation of piezoelectric ferroelectric textured ceramics, because the preparation of textured ceramics must first align the templates in the matrix, the preparation of piezoelectric ferroelectric textu...

Claims

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Application Information

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IPC IPC(8): C04B35/499C04B35/622B33Y70/10B33Y10/00
CPCC04B35/499C04B35/622B33Y70/10B33Y10/00C04B2235/6026C04B2235/656C04B2235/6567C04B2235/5445C04B2235/786
Inventor 庄建郑坤丁达飞赵振华全熠任巍伍尚华赵金燕王玲艳王哲姜知水
Owner XI AN JIAOTONG UNIV
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