Abstract
Although an extremely hard ceramic material, niobium carbide has low fracture toughness to use wide applications. To fabricate nanostructured composite is common method to improve fracture toughness. Nanopowder mixture of Nb₂C and Al₂O₃ were synthesized according to the reaction (Al₄C₃+6Nb+3O₂ → 3Nb₂C+2Al₂O₃) from Al₄C₃ and Nb powders by high-energy ball milling. The synthesized mixture of Nb₂C and Al₂O₃ powders was consolidated by pulsed current activated sintering method within two min under the 80 MPa pressure. Nb₂C and Al₂O₃ in the composite were nano-sized phases. The fracture toughness of a nanostructured Nb₂C-Al₂O₃ composite of this study is better than that of previous study.
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.
