Additive Manufacturing of Ceramics

ABSTRACT Ceramic processing involves multiple steps due to the high melting point and low ductility. Traditionally, ceramics are manufactured from its powder to a green shape followed by densication or sintering at high temperature. Application of additive manufacturing (AM) of ceramics started with the ease of green shape forming that can then be sintered using conventional methods. Later, different AM approaches developed to form ceramic coatings on metallic substrates to improve wear, corrosion, and heat resistance of materials. The following chapter is focused on different AM techniques, how they can be utilized for ceramic processing, and their advantages as well as concerns. Some ofCONTENTS5.1 Introduction 144 5.2 SLA of Ceramics 1445.2.1 SLA: History and Methodology 144 5.2.2 Stability of Ceramic Suspension and Its Rheological Behavior 145 5.2.3 SLA of the Ceramic Suspension 147 5.2.4 Applications and Further Development 1475.3 SLS of Ceramics 149 5.3.1 SLS: History and Methodology 149 5.3.2 Direct SLS 150 5.3.3 Indirect SLS for Ceramics 152 5.3.4 Application and Future Development 1535.4 Ink-Jet 3DP for Ceramics 155 5.4.1 Ink-Jet 3DP: History and Methodology 155 5.4.2 Ink-Jet 3DP Processed Ceramics 1565.5 Fused Deposition of Ceramics 159 5.5.1 FDC: History and Methodology 159 5.5.2 FDC Processed Ceramics 1605.6 Laminated Object Manufacturing of Ceramics 162 5.6.1 LOM: History and Methodology 162 5.6.2 LOM Processed Ceramics 1645.7 Laser Engineered Net Shaping™ 165 5.7.1 LENS: History and Methodology 165 5.7.2 LENS Processed Ceramics 1675.8 Robocasting 171 5.9 Future Trends for Ceramic Additive Manufacturing 173 5.10 Summary 175 References 177the recent developments and work done over the past 20 years are addressed to understand the history and growth of this eld through process descriptions and examples.