Imperial College London
Portrait Picture

Professor Saiz

Faculty of Engineering, Department of Materials

Chair in Structural Ceramics
 
 
 
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Contact

 

+44 (0)20 7594 6779e.saiz

 
 
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Location

 

LM04.BRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Cai:2023:10.1016/j.matdes.2022.111463,
author = {Cai, Q and Meille, S and Chevalier, J and Zhou, S and Bouville, F and Tirichenko, I and Saiz, Gutierrez E},
doi = {10.1016/j.matdes.2022.111463},
journal = {Materials & Design},
title = {3D-Printing of ceramic filaments with ductile metallic cores},
url = {http://dx.doi.org/10.1016/j.matdes.2022.111463},
volume = {225},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The additive manufacturing of composite structures can open possibilities in the design and fabrication of devices but also demands new approaches. In this work, we use thermally reversible pastes to fabricate ceramic matrix (Al2O3) composites reinforced with continuous metallic fibres (steel). The approach is based on the micro-extrusion of ceramic–metal filaments with core–shell and layered arrangements. These filaments are employed in the additive manufacturing of dense and light-weight cellular structures that combine the stiffness and strength of the ceramic shell with the fracture resistance and energy absorption capabilities provided by the metal core. The approach can be used to extrude filaments with thin porous interlayers separating the core and the shells to create a weak fibre/matrix interphase. The cellular structures fabricated with these filaments exhibit higher compressive strengths and energy absorption capabilities than those fabricated from pure ceramics. The works of fracture of the dense composites are one to two orders of magnitude above those of the ceramic matrix (103 J/m2) while the bending strengths remain comparable to those of 3D printed alumina (200–350 MPa). The technique could be easily extended to other material combinations opening new opportunities in the additive manufacturing of multi-material parts and devices.
AU  - Cai,Q
AU  - Meille,S
AU  - Chevalier,J
AU  - Zhou,S
AU  - Bouville,F
AU  - Tirichenko,I
AU  - Saiz,Gutierrez E
DO  - 10.1016/j.matdes.2022.111463
PY  - 2023///
SN  - 0261-3069
TI  - 3D-Printing of ceramic filaments with ductile metallic cores
T2  - Materials & Design
UR  - http://dx.doi.org/10.1016/j.matdes.2022.111463
UR  - http://hdl.handle.net/10044/1/102095
VL  - 225
ER  -
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