A bioinspired surface tension-driven route toward programmed cellular ceramics

Ying Hong, Shiyuan Liu, Xiaodan Yang, Wang Hong, Yao Shan, Biao Wang, Zhuomin Zhang, Xiaodong Yan, Weikang Lin, Xuemu Li, Zehua Peng, Xiaote Xu and Zhengbao Yang ()
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Ying Hong: Hong Kong University of Science and Technology
Shiyuan Liu: Hong Kong University of Science and Technology
Xiaodan Yang: Hong Kong University of Science and Technology
Wang Hong: Beijing Institute of Technology
Yao Shan: Hong Kong University of Science and Technology
Biao Wang: Shanghai University
Zhuomin Zhang: Hong Kong University of Science and Technology
Xiaodong Yan: Hong Kong University of Science and Technology
Weikang Lin: Hong Kong University of Science and Technology
Xuemu Li: Hong Kong University of Science and Technology
Zehua Peng: Hong Kong University of Science and Technology
Xiaote Xu: Hong Kong University of Science and Technology
Zhengbao Yang: Hong Kong University of Science and Technology

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract The intriguing biomineralization process in nature endows the mineralized biological materials with intricate microarchitected structures in a facile and orderly way, which provides an inspiration for processing ceramics. Here, we propose a simple and efficient manufacturing process to fabricate cellular ceramics in programmed cell-based 3D configurations, inspired by the biomineralization process of the diatom frustule. Our approach separates the ingredient synthesis from architecture building, enabling the programmable manufacturing of cellular ceramics with various cell sizes, geometries, densities, metastructures, and constituent elements. Our approach exploits surface tension to capture precursor solutions in the architected cellular lattices, allowing us to control the liquid geometry and manufacture cellular ceramics with high precision. We investigate the geometry parameters for the architected lattices assembled by unit cells and unit columns, both theoretically and experimentally, to guide the 3D fluid interface creation in arranged configurations. We manufacture a series of globally cellular and locally compact piezoceramics, obtaining an enhanced piezoelectric constant and a designed piezoelectric anisotropy. This bioinspired, surface tension-assisted approach has the potential to revolutionize the design and processing of multifarious ceramic materials for structural and functional applications in energy, electronics and biomedicine.

Date: 2024
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DOI: 10.1038/s41467-024-49345-3

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