Surface Modification of High Density Ceramic Powder for Increasing Suspension Capacity in Three-Dimensional Printing Application

Abstract:

Three-dimensional slurry printing is a promising tool for making ceramic object but it limits in high dense ceramic powder because of poor suspension capacity. This study uses zirconia powder with an average diameter of 2 μm because its density is 5.67 g/cm³. A treatment protocol is proposed to improve the suspension capacity of zirconia powder including the ball milling, surface modification and resin blending. Experimental results show that adding 1% of isostearyl titanate, a coupling agent, for surface modification can enhance the lipophilicity of zirconia powder. Mixing surface modification powder in resin with a weight ratio of 7:3 and carrying on ball milling with 100 RPM for 6 hours can obtain the diameter of powder less than 400 nm. As a result, the zirconia slurry can obtain good suspension capacity which is over 48 hours.

• Periodical: Materials Science Forum (Volume 936)
• Pages: 159-163
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.936.159
• Online since: October 2018
• Authors: Huang Jan Hsu, Shyh Yuan Lee, Shinn Liang Chang, Cho Pei Jiang*
• Keywords: Surface Modification, Suspension Capacity, Three-Dimensional Printing

References

[1] C.-P. Jiang, H.-J. Hsu and S.-Y. Lee: Int. J Precis. Eng. Manuf. Vol. 15 (2014), p.2413.

[2] J.-C. Wang: Int. J Precis. Eng. Manuf. Vol. 14 (2013), p.485.

[3] P. Coussot, in: Rheometry of pastes, suspensions, and granular materials: applications in industry and environment, John Wiley & Sons (2005).

DOI: 10.1002/0471720577

[4] C.-P. Jiang, H.-J. Hsu and S.-Y. Lee: IOP Conf. Ser. Mater. Sci. Eng. Vol. 235 (2017), 012010.

[5] H. Keramati, M. H. Saidi and M. Zabetian: J. Disper. Sci. Technol. Vol. 37 (2015), p.6.

[6] G.-J. Ho, K.-D. Yun, K.-M. Lee, H.-P Lim, S.-W. Park: J Adv. Prothodont. Vol. 2 (2010), p.81.

[7] A. Gany: Eurasian Chemico-Technological J. Vol. 18 (2016), p.161.