3D printing of flexible piezoelectric composite with integrated sensing and actuation applications

Jiang Li; Yan Zhang; Mingyang Yan; Chao Zhong; Lianzhong Zhao; Di Zhai; Hang Luo; Xi Yuan; Dou Zhang

Advanced Powder Materials (Oct 2024)

3D printing of flexible piezoelectric composite with integrated sensing and actuation applications

Jiang Li,
Yan Zhang,
Mingyang Yan,
Chao Zhong,
Lianzhong Zhao,
Di Zhai,
Hang Luo,
Xi Yuan,
Dou Zhang

Affiliations

Jiang Li: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Yan Zhang: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China; Corresponding author.
Mingyang Yan: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Chao Zhong: College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
Lianzhong Zhao: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Di Zhai: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Hang Luo: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Xi Yuan: College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Corresponding author.
Dou Zhang: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China; Corresponding author.

Journal volume & issue: Vol. 3, no. 5
p. 100226

Abstract

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3D printing of flexible piezoelectric composites (3D-FPCs) is increasingly attracting the attention due to its unique advantage for customized smart applications. However, current research mainly focuses on the 0–3 piezoelectric composites, in which the piezoelectric ceramics are embedded in polymer matrix in the form of particles. The poor connectivity between particles much reduces the conduction of strain and charge in the composites, seriously limiting its application in actuation. In this work, a continuous lead zirconate titanate (PZT) double-layer ceramic scaffold was prepared by 3D printing and assembled with epoxy resin and interdigital electrodes together to manufacture a multifunctional device. The 3D-FPCs exhibit a free strain of 1830 ppm in actuating and are able to actuate a stainless-steel cantilever beam to produce a tip displacement of 5.71 mm. Additionally, the devices exhibit a sensitivity of 26.81V/g in sensing applications. Furthermore, 3D-FPCs are demonstrated as actuators for mobile small robots and wearable sensors for sensing joint activities.

Published in Advanced Powder Materials

ISSN: 2772-834X (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/advanced-powder-materials/

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