Method for preparing piezoelectric ceramics based on femtosecond laser 3D printing
A technology of piezoelectric ceramics and femtosecond laser, applied in the field of piezoelectric ceramics, can solve the problems of long preparation process and achieve the effect of reducing sintering time
Active Publication Date: 2016-04-20
WUHAN UNIV
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[0005] The purpose of the present invention is to provide a method for preparing piezoelectric ceramics based on femtosecond laser 3D printing, which aims to solve the problem that the preparation process of existing piezoelectric ceramics takes a long time
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] see Figure 1-Figure 3 , the embodiment of the present invention provides a method for preparing piezoelectric ceramics based on femtosecond laser 3D printing, the piezoelectric ceramic 1 is prepared by piezoelectric ceramic powder, including the following preparation steps:
[0027] First mix the piezoelectric ceramic powder and the binder, and grind the formed mixture to form a ceramic slurry with a certain viscosity. Since the ceramic slurry prepared...
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The invention relates to piezoelectric ceramics and provides a method for preparing piezoelectric ceramics based on femtosecond lasers and 3D printing. The method comprises the steps that firstly, viscous ceramic slurry is prepared; secondly, the viscous ceramic slurry is placed into a 3D printer, and ceramics are printed out on a template according to a constructed piezoelectric ceramic model; and thirdly, in the printing process, extrusive ceramic slurry drops are sintered through the femtosecond lasers, and the ceramics formed through sintering is subjected to polarization treatment to form the piezoelectric ceramics. According to the method, the piezoelectric ceramics is formed through combination of the 3D printing technology and the femtosecond laser sintering technology, so the preparation time of the piezoelectric ceramics can be greatly shortened; moreover, the piezoelectric performance and the size of the formed piezoelectric ceramics both meet the requirements for the needed piezoelectric ceramics, secondary machining is not needed, and the preparation process is simplified.
Description
technical field [0001] The invention relates to piezoelectric ceramics, in particular to a method for preparing piezoelectric ceramics based on femtosecond laser 3D printing. Background technique [0002] Because piezoelectric ceramics have piezoelectric effect and inverse piezoelectric effect, it can be used to manufacture ultrasonic transducers, underwater acoustic transducers, electroacoustic transducers, ceramic filters, ceramic transformers, ceramic frequency discriminators, and high-voltage generators , infrared detectors, surface acoustic wave devices, electro-optic devices, ignition and detonation devices, and piezoelectric gyroscopes have important applications in the military field and daily life, so the preparation of piezoelectric ceramics has always been an important topic. [0003] At present, the preparation method of piezoelectric ceramics is mainly the solid state reaction sintering method. The general process of this method is grinding-pre-firing-regrinding...
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IPC IPC(8): B28B1/00B33Y10/00B33Y40/00
CPCB28B1/001
Inventor 刘胜李晓天
Owner WUHAN UNIV