Abstract
The reaction of zirconium and boron was investigated as a potential route to form dense monolithic zirconium diboride (ZrB 2) ceramics. Attrition milling of the precursors produced nanosized (less than 100 nm) zirconium metal particles that reacted with boron to form ZrB 2 with an average particle size of less than 100 nm at temperatures as low as 600 °C. Scanning electron microscopy of ZrB 2 compacts heated to 1450 °C and 1650 °C showed average particle sizes of 0.6 μm and 1.0 μm, respectively, suggesting that the fine particle size was maintained during densification. Ceramics with a relative density of ∼99% were produced by hot pressing at 2100 °C. Dense ZrB 2 produced by the reactive hot pressing process had mechanical properties that were comparable to ceramics produced by conventional processes. The four-point flexure strength of ZrB 2 produced in this study was 434 MPa.
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.
