Ceramic composites exhibit improved mechanical properties compared to ceramics alone do to the cooperative effect between matrix and ceramic. However, other composites additives are of interest for different applications besides traditional fiber matrices. Additive manufacturing (AM) provides flexibility in terms of fabrication that is unachievable with traditional manufacturing techniques e.g., geometric and processing control. In addition to traditional composite materials, direct ink write (DIW) AM allows for the incorporation of novel fillers that can be directed via shear forces in the nozzle or brought together through engineered trace contraction. Control over these nanoscale additives provide new knobs to control the mechanical and chemical responses of the resulting parts, whether during or after processing, e.g., mechanical anisotropy, reinforcement, and reduced part shrinkage.

Preceramic inks with nanoscale additives for additive manufacturing of composites

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