Abstract
In this study, hybrid composites comprising SiC(SCS-6)/Ti composite and ZrB2–ZrC ceramics were prepared by sandwiching Ti/SiC(SCS-6)/Ti sheets and Zr+B4C powder layers, followed by reactive hot pressing (RHPing) between 1250°C and 1400°C. The effects of RHPing temperature on the microstructures and the mechanical behaviours of the composites were examined. For the samples prepared at 1250°C and 1300°C, a Ti-rich zone was observed in the matrix and around the fibres. However, for the sample prepared at 1400°C, no Ti-rich zone was observed. In addition, the hybrid composites show noncatastrophic fracture behaviour, irrespective of RHPing temperature. Compared to the sample processed at 1400°C, the samples processed at 1250°C and 1300°C exhibited higher flexural strength and greater damage tolerance. The lower strength and damage tolerance for the composite processed at 1400°C are attributed to stronger interface bonding via significant degradation of the C-rich coating and to strength degradation of the fibres.
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 callDisclaimer: 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.
