Abstract
The pH localization phenomenon during electrophoretic deposition (EPD) of the MAX phase-Titanium silicon carbide (Ti3SiC2), from suspension in aqueous and mixed (water-ethanol) solvent was experimentally verified in presence of a cationic dispersant, polyethyleneimine (PEI). The local pHs at the electrodes were dependent on solid loadings of the suspensions; pH localization was pronounced at lower solid loading. Higher solid loading resulted in thicker deposits, shielding the electrode surface and hindering direct interaction of the electrode with the particles, thereby suppressing the change in local pH. Comparison of local pH at cathode during EPD from aqueous and mixed solvent revealed a delay in the attainment of isoelectric point (IEP) at the vicinity of electrode and slower deposition rate for mixed solvent. A necessity of concurrence between the IEP of the material and the local pH at the deposition electrode for a given system was established for the formation of good deposits.
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.
