Abstract
To explore the effects of thermal shock cycles on ZrC-C composites, their microstructure, coefficient of thermal expansion (CTE), compressive strength and internal friction behavior after different thermal shock cycles were studied. As the thermal shock cycle between 1500 ℃ and room temperature increased from 0 to 30, the CTE of the ZrC-C composites with the ZrC/PyC (Pyrolytic carbon) weight ratio of 1.7 first increased and then decreased, and its compressive strength increased by 35.8 % (295.4 ± 10.1 MPa) after 10 thermal shock cycles and could still be maintained above 85 % of its original strength after 30 thermal shock cycles. The changed interface bonding strength between ZrC skeleton and PyC resulted in the first decrease and then increase of their internal friction. This work provides an effective strategy for optimizing the thermal shock resistance of ultra-high temperature composites by regulating the component contents.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Composites Part A: Applied Science and Manufacturing
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
