Additive Manufacturing of Ductile, Ultrastrong Polymer-Derived Nanoceramics

J. Bauer; C. Crook; A. Guell Izard; Z. C. Eckel; N. Ruvalcaba; T. A. Schaedler; L. Valdevit

Matter 1 (2019) 1547-1556

Ductile high-strength ceramics would be ideal for many structural applications; however, they have been neither demonstrated at dimensions much above the nanoscale nor shown to be manufacturable with application-relevant processes. Here, we present a robust route to additively manufacture ductile, ultrastrong silicon oxycarbide nanoceramics via two-photon polymerization of a preceramic resin and subsequent pyrolysis. We measure plastic deformability with strains up to 25% and strengths >7 GPa for 20-μm specimens, opening up potential for fabrication of mesoscale ductile ceramic components.