[T7] AM Sinter Based Technologies

[16A-T7-18] Electrostatically Design of Composite Particles for Efficient Ceramics Sintering

*K. Fujishiro¹, G. Kawamura¹, A. Matsuda¹, W. Tan¹, H. Muto¹ (1.Toyohashi University of Technology, Japan)

Keywords:Ceramic materials, composite particles, electrostatic assembly, sintering, powder metallurgy

Ceramics materials are widely used in various fields due to their exceptional properties such as heat resistance, chemically stable and good mechanical properties. For the development of advanced ceramics, the demand for sophisticated ceramics structures with desired properties has been increasing. Additive manufacturing is deemed as a rapid moldless, prototyping manufacturing method that enables the fabrication of complicated ceramic components. However, after the shape-forming process, the subsequent sintering process is important to obtain a rather dense sintered structure exhibiting desired properties, and preferably, at lower sintering temperature to reduce the load on the environment. In this study, using an electrostatic assembly method, controlled formation of alumina-alumina ceramic composite particles led to an improved sintering process forming pore-free and denser microstructure. The feasible improvement of the green body sintering using ceramic composite particles could be beneficial in the ceramic materials development.