Abstract
Herein, ZrC powders with the average particle sizes of 100–300 nm were synthesized via a method composed of vacuum carbothermal reduction followed by calcium treatment. The effects of carbon and calcium addition amounts as well as temperature on the micromorphology of obtained products had been studied, and the involved mechanisms were described. Due to the dissolution-transportation-precipitation mechanism, ZrC grains would grow during the calcium treatment process. The finest ZrC with the average particle size of 126.2 nm could be obtained by the combination of vacuum carbothermal reduction at 1773 K for 4 h and calcium treatment at 1173 K for 4 h, with the carbon addition amount of 1.2 times the theoretical value. Furthermore, carbon defect was found in the final products and the lattice spacing was in good agreement with those calculated by proposed formula.
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.
