Abstract
For the first time, ultra-high temperature ceramic matrix composite bars were tested inside an arc-jet facility to investigate the impact of oxidation damage on strength retention. The composite bars, which were based on a ZrB2 / SiC matrix reinforced with 45 vol% carbon fibers, were produced by slurry impregnation and sintering. The first batch was tested under 3-point (pt) bending, and two additional batches were exposed to plasma of dissociated air up to a temperature of 2200 °C for 2 min or 2.2 min and then subjected to 3-pt bending. More than 75% of the initial strength was retained even after repeated testing, demonstrating the durability and reusability of the material. Volatility diagrams were calculated to explain the oxide layering observed, while a numerical model was developed to correlate the experimental mechanical data with the elastic properties. The decrease of strength was attributed to a reduction of the cross section due to oxidation (Figure Presented).
Recommended Citation
D. Sciti and A. Vinci and L. Zoli and P. Galizia and M. Mor and W. Fahrenholtz and S. Mungiguerra and R. Savino and A. M. Caporale and A. Airoldi, "Elevated Temperature Performance: Arc-jet Testing of Carbon Fiber Reinforced ZrB2 Bars Up To 2200 °C for Strength Retention Assessment," Journal of Advanced Ceramics, vol. 14, no. 2, article no. 9221022, SciOpen, Feb 2025.
The definitive version is available at https://doi.org/10.26599/JAC.2024.9221022
Department(s)
Materials Science and Engineering
Publication Status
Open Access
Keywords and Phrases
arc-jet testing; carbon fibers; mechanical characterization; oxidation resistance; ultra-high temperature ceramic matrix composites; ZrB 2
International Standard Serial Number (ISSN)
2227-8508; 2226-4108
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2025 The Authors, All rights reserved.
Publication Date
01 Feb 2025
Comments
Agenzia Spaziale Italiana, Grant 0001052dated23/06/2022