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Journal of Advanced Ceramics 2023, 12(1): 155-168 https://doi.org/10.26599/JAC.2023.9220674
Research Article | Open Access | Issue | Published: 07 December 2022

A novel approach for manufacturing of layered, ultra-refractory composites using pliable, short fibre-reinforced ceramic sheets

Show Author's Information Matteo MOR( ),  Antonio VINCI,  Simone FAILLA,  Pietro GALIZIA,  Luca ZOLI,  Diletta SCITI
ISSMC-CNR, Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, 48018 Faenza (RA), Italy
Keywords:
mechanical properties, ceramic matrix composites (CMCs), ultra-high-temperature ceramics (UHTCs), short carbon fibres
Cite this article:
MOR M, VINCI A, FAILLA S, et al. A novel approach for manufacturing of layered, ultra-refractory composites using pliable, short fibre-reinforced ceramic sheets. Journal of Advanced Ceramics, 2023, 12(1): 155-168. https://doi.org/10.26599/JAC.2023.9220674
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Abstract Full text About this article

A new additive technique for manufacturing of short fibre-reinforced ultra-refractory ceramics is presented. This technique allows the fabrication of solvent-free, thin (~100 µm), flexible, and easy-to-handle sheets suitable for fabricating homogeneous or layered structures. A large range of compositions, in terms of matrix and fibre volumetric contents, from 0% to 100% is possible. The amount of short carbon fibres incorporated in the sheets ranged from 20 to 50 vol%, whereas the fibre length ranged from 3 to 5 mm. The matrix composition investigated with this technique consisted of ZrB2/SiC/Y2O3. By increasing the fibre amount from 35 to 50 vol%, an improvement of mechanical properties was observed. Four-point flexural strength (σ) ranged from 107 to 140 MPa, depending on the amount of carbon fibres (Cf). The same holds true for the work of fracture, ranging from 108 to 253 J/m2. Functionally graded composites were fabricated by overlapping sheets with a fibre gradient (0%–50%).


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A novel approach for manufacturing of layered, ultra-refractory composites using pliable, short fibre-reinforced ceramic sheets

Show Author's information Matteo MOR( ), Antonio VINCI, Simone FAILLA, Pietro GALIZIA, Luca ZOLI, Diletta SCITI
ISSMC-CNR, Institute of Science, Technology and Sustainability for Ceramics, Via Granarolo 64, 48018 Faenza (RA), Italy

Abstract

A new additive technique for manufacturing of short fibre-reinforced ultra-refractory ceramics is presented. This technique allows the fabrication of solvent-free, thin (~100 µm), flexible, and easy-to-handle sheets suitable for fabricating homogeneous or layered structures. A large range of compositions, in terms of matrix and fibre volumetric contents, from 0% to 100% is possible. The amount of short carbon fibres incorporated in the sheets ranged from 20 to 50 vol%, whereas the fibre length ranged from 3 to 5 mm. The matrix composition investigated with this technique consisted of ZrB2/SiC/Y2O3. By increasing the fibre amount from 35 to 50 vol%, an improvement of mechanical properties was observed. Four-point flexural strength (σ) ranged from 107 to 140 MPa, depending on the amount of carbon fibres (Cf). The same holds true for the work of fracture, ranging from 108 to 253 J/m2. Functionally graded composites were fabricated by overlapping sheets with a fibre gradient (0%–50%).

Keywords: mechanical properties, ceramic matrix composites (CMCs), ultra-high-temperature ceramics (UHTCs), short carbon fibres

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Publication history
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Publication history

Received: 29 July 2022
Revised: 23 September 2022
Accepted: 10 October 2022
Published: 07 December 2022
Issue date: January 2023

Copyright

© The Author(s) 2022.

Acknowledgements

The authors wish to thank Claudio Capiani for the assistance with gypsum mould casting and Cesare Melandri for mechanical testing. This work received support by the European Union’s Horizon 2020 committee under research and innovation programme for the project C3HARME: Next Generation Ceramic Composites for Harsh Combustion Environment and Space (Grant No. 685594).

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