Abstract
Additive manufacturing (AM), well-known as 3D printing, provides a convenient approach to fabricate complex-shaped components by means of successive layers deposition of raw materials. This technology is both materials- and time-saving. AM of ceramics has attracted tremendous attention since comprehensive researches were reported on polymers and metals during recent years. Laser AM technologies take full advantage on the unique features of high-precision, high-throughput, and near-net-shape manufacturing. However, for structural ceramic materials such as silicon carbide (SiC), post-laser-AM procedures are normally introduced in order to achieve high-quality components for particle applications. In this chapter, we review the laser AM technologies applied to SiC ceramic based on photothermal effects, mainly focusing on selective laser sintering and selective laser melting. The important laser processing parameters as well as the interaction between laser and ceramics will be analyzed. Finally, discussions on the main challenges and perspectives for laser additive manufacturing of SiC ceramic are covered.
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