3D printing of piezoelectric element for energy focusing and ultrasonic sensing

被引：217

作者：

Chen, Zeyu ^{[1
,5
]}

Song, Xuan ^{[2
]}

Lei, Liwen ^{[3
]}

Chen, Xiaoyang ^{[1
]}

Fei, Chunlong ^{[4
]}

Chiu, Chi Tat ^{[1
]}

Qian, Xuejun ^{[1
]}

Ma, Teng ^{[1
]}

Yang, Yang ^{[2
]}

Shung, Kirk ^{[1
]}

Chen, Yong ^{[2
]}

Zhou, Qifa ^{[1
]}

机构：

[1] Univ Southern Calif, Dept Biomed Engn, Los Angeles, CA 90089 USA

[2] Univ Southern Calif, Daniel J Epstein Dept Ind & Syst Engn, Los Angeles, CA 90089 USA

[3] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Hubei, Peoples R China

[4] Xidian Univ, Dept Microelect, Xian 710071, Shanxi, Peoples R China

[5] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China

来源：

NANO ENERGY | 2016年 / 27卷

基金：

美国国家科学基金会;

关键词：

Additive manufacturing; Piezoelectric materials; Ultrasonic transducer; Ultrasonic imaging; BARIUM-TITANATE; STEREOLITHOGRAPHY; SUSPENSIONS; FABRICATION; CERAMICS; ARRAYS; FILMS;

D O I：

10.1016/j.nanoen.2016.06.048

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Piezoelectric ceramics are currently of considerable interest for their capabilities of converting compressive/tensile stresses to an electric charge, or vice versa. Because ceramics cannot be cast and machined easily, additive manufacturing (AM) processes (3D printing technology) open an effective pathway in geometrical flexibility. However, the piezoelectric properties limit the application of printed ceramics. This work demonstrates that a piezoelectric-composite slurry with BaTiO3 nanoparticles (100 nm) can be 3D printed using Mask-Image-Projection-based Stereolithography (MIP-SL) technology. After a post-process, the density of 5.64 g/cm(3) was obtained, which corresponds to 93.7% of the density of bulk BaTiO3 (6.02 g/cm(3)). The printed ceramic exhibits a piezoelectric constant and relative permittivity of 160 pCN(-1) and 1350 respectively. An ultrasonic transducer with printing focused piezoelectric element was fabricated to realize the energy focusing and ultrasonic sensing. A 6.28 MHz ultrasonic scan was achieved by the transducer and successfully visualized the structure of a porcine eyeball. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：78 / 86

页数：9

共 41 条

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Tape casting using UV curable binders [J].