Elevated temperature tensile and bending strength of ultra-high temperature ceramic matrix composites obtained by different processes

Pietro Galizia; Diletta Sciti; Jon Binner; Vinothini Venkatachalam; Miguel A. Lagos; Francesca Servadei; Antonio Vinci; Luca Zoli; Thomas Reimer

doi:10.1016/j.jeurceramsoc.2023.03.055

Elevated temperature tensile and bending strength of ultra-high temperature ceramic matrix composites obtained by different processes

Pietro Galizia^*, Diletta Sciti, Jon Binner, Vinothini Venkatachalam, Miguel A. Lagos, Francesca Servadei, Antonio Vinci, Luca Zoli, Thomas Reimer

^*Corresponding author for this work

Materials for extreme conditions

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

This paper presents a comparison of microstructures and mechanical properties of different ZrB₂-based CMCs, which were manufactured in the frame of the Horizon 2020 European C³HARME research project through different processes: slurry infiltration and sintering (SIS), polymer infiltration and pyrolysis (PIP) and radio frequency chemical vapour infiltration (RF-CVI). Tensile testing with a novel optimized shape of the specimens was performed and compared with the results of flexural tests to assess the structural properties. For the first time, tensile tests up to 1600 °C were carried out on UHTCMCs. Despite the different microstructural features, all the ZrB₂-based CMCs demonstrated excellent structural properties even at elevated temperature. The characterization shows how the different amount of porosity and fibre properties, such as its stiffness, strength and elongation, affected the mechanical behaviour of the C³HARME's composites. Finally, the role of the high level of residual thermal stresses is discussed.

Original language	English
Pages (from-to)	4588-4601
Number of pages	14
Journal	Journal of the European Ceramic Society
Volume	43
Issue number	11
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2023.03.055
Publication status	Published - Sept 2023

Keywords

Carbon fibre
Ceramic Matrix Composite (CMC)
High-temperature tensile strength
Residual Thermal Stress (RTS)
Ultra-High Temperature Ceramic Composite (UHTCMC)

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Galizia, P., Sciti, D., Binner, J., Venkatachalam, V., Lagos, M. A., Servadei, F., Vinci, A., Zoli, L., & Reimer, T. (2023). Elevated temperature tensile and bending strength of ultra-high temperature ceramic matrix composites obtained by different processes. Journal of the European Ceramic Society, 43(11), 4588-4601. https://doi.org/10.1016/j.jeurceramsoc.2023.03.055

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title = "Elevated temperature tensile and bending strength of ultra-high temperature ceramic matrix composites obtained by different processes",

abstract = "This paper presents a comparison of microstructures and mechanical properties of different ZrB2-based CMCs, which were manufactured in the frame of the Horizon 2020 European C3HARME research project through different processes: slurry infiltration and sintering (SIS), polymer infiltration and pyrolysis (PIP) and radio frequency chemical vapour infiltration (RF-CVI). Tensile testing with a novel optimized shape of the specimens was performed and compared with the results of flexural tests to assess the structural properties. For the first time, tensile tests up to 1600 °C were carried out on UHTCMCs. Despite the different microstructural features, all the ZrB2-based CMCs demonstrated excellent structural properties even at elevated temperature. The characterization shows how the different amount of porosity and fibre properties, such as its stiffness, strength and elongation, affected the mechanical behaviour of the C3HARME's composites. Finally, the role of the high level of residual thermal stresses is discussed.",

keywords = "Carbon fibre, Ceramic Matrix Composite (CMC), High-temperature tensile strength, Residual Thermal Stress (RTS), Ultra-High Temperature Ceramic Composite (UHTCMC)",

author = "Pietro Galizia and Diletta Sciti and Jon Binner and Vinothini Venkatachalam and Lagos, {Miguel A.} and Francesca Servadei and Antonio Vinci and Luca Zoli and Thomas Reimer",

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year = "2023",

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doi = "10.1016/j.jeurceramsoc.2023.03.055",

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Galizia, P, Sciti, D, Binner, J, Venkatachalam, V, Lagos, MA, Servadei, F, Vinci, A, Zoli, L & Reimer, T 2023, 'Elevated temperature tensile and bending strength of ultra-high temperature ceramic matrix composites obtained by different processes', Journal of the European Ceramic Society, vol. 43, no. 11, pp. 4588-4601. https://doi.org/10.1016/j.jeurceramsoc.2023.03.055

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T1 - Elevated temperature tensile and bending strength of ultra-high temperature ceramic matrix composites obtained by different processes

AU - Galizia, Pietro

AU - Sciti, Diletta

AU - Binner, Jon

AU - Venkatachalam, Vinothini

AU - Lagos, Miguel A.

AU - Servadei, Francesca

AU - Vinci, Antonio

AU - Zoli, Luca

AU - Reimer, Thomas

PY - 2023/9

Y1 - 2023/9

N2 - This paper presents a comparison of microstructures and mechanical properties of different ZrB2-based CMCs, which were manufactured in the frame of the Horizon 2020 European C3HARME research project through different processes: slurry infiltration and sintering (SIS), polymer infiltration and pyrolysis (PIP) and radio frequency chemical vapour infiltration (RF-CVI). Tensile testing with a novel optimized shape of the specimens was performed and compared with the results of flexural tests to assess the structural properties. For the first time, tensile tests up to 1600 °C were carried out on UHTCMCs. Despite the different microstructural features, all the ZrB2-based CMCs demonstrated excellent structural properties even at elevated temperature. The characterization shows how the different amount of porosity and fibre properties, such as its stiffness, strength and elongation, affected the mechanical behaviour of the C3HARME's composites. Finally, the role of the high level of residual thermal stresses is discussed.

AB - This paper presents a comparison of microstructures and mechanical properties of different ZrB2-based CMCs, which were manufactured in the frame of the Horizon 2020 European C3HARME research project through different processes: slurry infiltration and sintering (SIS), polymer infiltration and pyrolysis (PIP) and radio frequency chemical vapour infiltration (RF-CVI). Tensile testing with a novel optimized shape of the specimens was performed and compared with the results of flexural tests to assess the structural properties. For the first time, tensile tests up to 1600 °C were carried out on UHTCMCs. Despite the different microstructural features, all the ZrB2-based CMCs demonstrated excellent structural properties even at elevated temperature. The characterization shows how the different amount of porosity and fibre properties, such as its stiffness, strength and elongation, affected the mechanical behaviour of the C3HARME's composites. Finally, the role of the high level of residual thermal stresses is discussed.

KW - Carbon fibre

KW - Ceramic Matrix Composite (CMC)

KW - High-temperature tensile strength

KW - Residual Thermal Stress (RTS)

KW - Ultra-High Temperature Ceramic Composite (UHTCMC)

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SN - 0955-2219

VL - 43

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JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 11

ER -

Elevated temperature tensile and bending strength of ultra-high temperature ceramic matrix composites obtained by different processes

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