Issue 10, 2020, Issue in Progress

Additive manufacturing of SiBCN/Si3N4w composites from preceramic polymers by digital light processing

Abstract

The application of advanced ceramic materials is limited by their brittleness and complicated manufacturing methods. Three-dimensional (3D) printing has emerged as a new method for the fabrication of complex-shaped ceramics. Herein, a type of printable slurry composed of SiBCN preceramic polymers and high-volume fractions of Si3N4 whiskers (up to 60 wt% of polymer) was prepared, and subsequently printed via digital light processing (DLP) technology. We successfully manufactured complex-structured ceramic composites and achieved high bending strength (∼180 MPa). The linear shrinkage and mass loss of the ceramic material were both significantly reduced after the introduction of whiskers. The properties and structure of the printed parts pyrolyzed at different temperatures were compared, and the relationship between the microstructure and mechanical properties discussed.

Graphical abstract: Additive manufacturing of SiBCN/Si3N4w composites from preceramic polymers by digital light processing

Supplementary files

Article information

Article type
Paper
Submitted
18 Nov 2019
Accepted
20 Jan 2020
First published
05 Feb 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 5681-5689

Additive manufacturing of SiBCN/Si3N4w composites from preceramic polymers by digital light processing

S. Li, Y. Zhang, T. Zhao, W. Han, W. Duan, L. Wang, R. Dou and G. Wang, RSC Adv., 2020, 10, 5681 DOI: 10.1039/C9RA09598E

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