Enhancing Thermal Stability of Carbon Fiber/Phenolic Matrix Composites Using ZrO2 Nanoparticles
Publication Name
11th Australasian Congress on Applied Mechanics, ACAM 2024
Abstract
Carbon fiber/phenolic resin matrix (CF/PR) composites are extensively utilized in the aerospace and defense industries due to their lightweight and heat resistance characteristics. This study explores the utilization of zirconium oxide nanoparticles to enhance the thermal stability and mechanical performance of carbon/phenolic composites. The incorporation of 1wt.% ZrO2 nanoparticles into the phenolic resin matrix results in a significant improvement in the thermal stability of CF/PR composites. This enhancement is manifested by an increased residual mass at elevated oxidation temperatures, and it can be attributed to the capacity of ZrO2 to stabilize polymer chains and absorb thermal energy. The mechanical properties of ZrO2-modified CF/PR composites are markedly enhanced following both long-duration and short-duration heat treatments. Particularly noteworthy is the substantial improvement in flexural strength and modulus, with an impressive 66.4% increase in strength and an over 150% increase in modulus observed at 1200°C. In short-duration heat treatments simulating high-temperature shocks, the ZrO2-modified composites demonstrate superior thermal-mechanical performance, showing reduced crack formation and better retention of strength and modulus compared to unmodified composites. This research not only advances our understanding of the benefits of ZrO2 nanoparticle modification but also opens avenues for practical applications, promising improved performance and safety in high-temperature environments.
Open Access Status
This publication is not available as open access
First Page
393
Last Page
399