Title:
PREPARATION METHOD FOR PIEZOELECTRIC COMPOSITE MATERIAL, AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/253579
Kind Code:
A1
Abstract:
Disclosed are a preparation method for a piezoelectric composite material, and the application thereof. The preparation method comprises: step one, designing a 3D printing curved-surface grid mold, and performing printing, preparing and molding; step two, cutting a block-shaped piezoelectric phase into a plurality of small piezoelectric columns; step three, inserting the small piezoelectric columns into a blank space of the 3D printing mold; step four, filling, curing and molding gaps between the small piezoelectric columns and the 3D printing mold by using a non-piezoelectric phase, such as epoxy resin; and step five, grinding, polishing and ultrasonically cleaning a prepared sample, and then coating the sample with an electrode to obtain a curved-surface piezoelectric composite material. A curved-surface piezoelectric composite material can be prepared by means of the present invention, and same has the advantages of successfully overcoming the defect of a conventional curved-surface piezoelectric composite material preparation process whereby same is complicated and difficult in terms of molding; and same can achieve the preparation of a large-curvature and large-area curved-surface piezoelectric composite material.
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Inventors:
XU ZHUO (CN)
JIA NANXIANG (CN)
WANG TING (CN)
LUAN PENG (CN)
DU HONGLIANG (CN)
LI FEI (CN)
XIA SONG (CN)
JIA NANXIANG (CN)
WANG TING (CN)
LUAN PENG (CN)
DU HONGLIANG (CN)
LI FEI (CN)
XIA SONG (CN)
Application Number:
PCT/CN2020/105379
Publication Date:
December 23, 2021
Filing Date:
July 29, 2020
Export Citation:
Assignee:
UNIV XI AN JIAOTONG (CN)
International Classes:
H01L41/083; H01L41/37
Foreign References:
| CN106098928A | 2016-11-09 | |||
| JP2001015822A | 2001-01-19 | |||
| CN108903975A | 2018-11-30 | |||
| CN103824934A | 2014-05-28 | |||
| US20080197754A1 | 2008-08-21 | |||
| CN108400231A | 2018-08-14 | |||
| CN107170882A | 2017-09-15 |
Other References:
WANG HONGWEI: "Research of a High Frequency Broadband Underwater Acoustic Transducer", JOURNAL OF TRANSDUCTION TECHNOLOGY, DONGNAN DAXUE CHUBANSHE, NANJING, CN, vol. 29, no. 5, 31 May 2016 (2016-05-31), CN , pages 665 - 669, XP055881610, ISSN: 1004-1699, DOI: 10.3969/j.issn.1004-1699.2016.05.007
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
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