Abstract
Two silicon carbide powders with different particle size distributions were blended in various proportions and then dispersed in aqueous media with a deflocculant. Bodies were consolidated from these suspensions via pressure slip casting. The relative density and the water content of the green bodies were measured and the optimum body in terms of packing ability was then chosen to evaluate the effects of: (i) the amount of deflocculant, (ii) the casting time on deposition rate, (iii) the microstructure of the consolidated layers. The results showed that the proportion between coarse and fine powders that produced a maximum packing density is independent of applied casting pressure but that the packing degree is normally lower than that obtained by normal slip casting. The amount of deflocculant required to maximise the green density within pressure casting was found to be higher in comparison with slip casting. Further, as the casting time increased the packing density continuously improved. These results may be interpreted in terms of deposition rate and time allowed for particle rearrangements.
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.
