Anisotropic Piezoelectric Properties of Porous (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 Ceramics with Oriented Pores through TBA-Based Freeze-Casting Method

Siyu Ge; Junzhan Zhang; Ying Zhang; Peng Shi; Honghui Wang; Shangyi Liu; Zhifeng Tian; Zongmo Shi

doi:10.3390/ma15113820

Materials (May 2022)

Anisotropic Piezoelectric Properties of Porous (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 Ceramics with Oriented Pores through TBA-Based Freeze-Casting Method

Siyu Ge,
Junzhan Zhang,
Ying Zhang,
Peng Shi,
Honghui Wang,
Shangyi Liu,
Zhifeng Tian,
Zongmo Shi

Affiliations

Siyu Ge: College of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Junzhan Zhang: College of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Ying Zhang: College of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Peng Shi: EMRL, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Honghui Wang: EMRL, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Shangyi Liu: College of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Zhifeng Tian: College of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Zongmo Shi: College of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China

DOI: https://doi.org/10.3390/ma15113820
Journal volume & issue: Vol. 15, no. 11
p. 3820

Abstract

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Porous (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) piezoelectric ceramics with an oriented directional hole structure were prepared by using the tertbutyl alcohol (TBA)-based freeze-casting method. The influences of sintering temperatures on the microstructure and piezoelectric properties of porous BCZT ceramics were investigated both perpendicular and parallel to the freezing direction. With the increase in sintering temperatures and the porosities decreased from 58% to 42%, the compressive strength increased from 14.0 MPa to 25.0 MPa. In addition, the d33 value of 407 pC/N for the sample sintered at 1400 °C was obtained parallel to the freezing direction, which was 1.40 times that of the other direction.

Published in Materials

ISSN: 1996-1944 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Technology: Engineering (General). Civil engineering (General); Science: Natural history (General): Microscopy; Science: Physics: Descriptive and experimental mechanics
Website: http://www.mdpi.com/journal/materials/

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