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Research Article | Open Access

Preliminary 3D printing of large inclined-shaped alumina ceramic parts by direct ink writing

Liangliang YANGa, Xiaojun ZENGb, Allah DITTAa, Bo FENGa, Lizhong SUa, Yue ZHANGa( )
Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China
Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
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Abstract

Three dimensional (3D) printing technology by direct ink writing (DIW) is an innovative complex shaping technology, possessing advantages of flexibility in fabrication, high efficiency, low cost, and environmental-friendliness. Herein, 3D printing of complex alumina ceramic parts via DIW using thermally induced solidification with carrageenan swelling was investigated. The rheological properties of the slurry under different thermally-induced modes were systematically studied. The solidification properties of thermally-induced pastes with varying contents of carrageenan were optimized. The experimental results showed that the optimized paste consisting of 0.4 wt% carrageenan could be rapidly solidified at about 55 ℃, which could print inclined-plane more than 60° in vertical without support, resulting in better homogeneity of the green body. A nearly pore-free structure was obtained after sintering at 1600 ℃ for 2 h.

Keywords

three dimensional (3D) printingalumina pastesolidification propertythermally-inducedcarrageenan

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Journal of Advanced Ceramics
Volume 9 Issue 3,
June 2020
Pages 312-319
DOI: 10.1007/s40145-020-0369-6

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Cite this article:
YANG L, ZENG X, DITTA A, et al. Preliminary 3D printing of large inclined-shaped alumina ceramic parts by direct ink writing. Journal of Advanced Ceramics, 2020, 9(3): 312-319. https://doi.org/10.1007/s40145-020-0369-6

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Received: 07 January 2020
Revised: 23 February 2020
Accepted: 23 February 2020
Published: 05 June 2020
© The Author(s) 2020

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