Abstract
The influences of adding SiC on the microstructure and densification behavior of ZrB2 and TiB2 ceramics, hot pressed at 1850°C for 60min under 20MPa, were investigated. The sintered samples were characterized by SEM, EDS and XRD methods. A fully dense TiB2-based ceramic was obtained by adding 30vol% SiC. The grain size of ZrB2 or TiB2 matrices in the final microstructures decreased with increasing SiC content. The XRD analyses, microstructural characterization as well as thermodynamical calculations proved the in-situ formation of TiC in the SiC reinforced TiB2-based composites. The interfaces between ZrB2 and SiC grains in the SiC reinforced ZrB2-based composites were free of any impurities or tertiary interfacial phases such as ZrC. This result was consistent with the X-ray diffraction pattern and thermodynamics.
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 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.
