Abstract
Abstract An investigation into the reaction pathway of the electrochemical reduction of Ta 2 O 5 to tantalum in a eutectic CaCl 2 –NaCl molten salt has been performed in order to better understand the reaction mechanism of the electro-deoxidation process. Partially reduced samples were obtained by interrupting the reduction process after different reaction times at 1123 K, and examined by XRD, SEM and EDX analysis. The results reveal that the reduction process from Ta 2 O 5 to Ta undergoes several intermediate phases, such as Ta 2 O 5 ·0.5CaO, Ta 2 O 5 ·2CaO, and Ta 2 O 5 ·4CaO. The particle morphology in the cathode changed with the various phase transformations. The CaO concentration in the CaCl 2 –NaCl melt seems to affect the particle size of nodular-shaped tantalum powder products.
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.
