Abstract
The synthesis of high-quality silicide ceramic has been challenging mainly due to the high melting point of the silicide and the difficulty in achieving a uniform composition. This study reports the synthesis of dense and homogeneous niobium disilicon (NbSi2) ceramics, accomplished with high-temperature and high-pressure (HTHP) technology. The synthesized bulk NbSi2 ceramics were extensively characterized for their microstructures, phase stabilities, and oxidation resistance, along with the effects of pressure on their physical properties, and the results were then compared with first-principles calculations. The microstructures and relative densities of the sample were regulated by the slow-modulated HTHP sintering method, thus significantly influencing the physical properties and thermal stabilities of the NbSi2 ceramics. The findings of the study provide valuable insights into the physical properties of silicide ceramics, th potentially paving the way for the further design and synthesis of multifunctional ceramic materials.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.