Customized Nanostructured Ceramics via Microphase Separation 3D Printing.

Current fabrication techniques for ceramics are limited in their ability to control both nano- and macroscopic features simultaneously. This limitation has slowed progress in fields like aeronautics, defense, and microelectronics, where precise material structures are essential. Prior research has shown that traditional methods cannot achieve the necessary level of structural control across multiple scales. No prior work had resolved how to combine nanoscale and macroscale structuring in ceramics. This gap motivated the development of new fabrication strategies. Researchers have explored self-assembly and digital fabrication separately, but not in tandem. The field lacks a unified approach to produce complex ceramic geometries with nanoscale features. This paper introduces a novel method that integrates self- and digital assembly. The study addresses the need for scalable, controlled ceramic fabrication.

The goal of this research is to develop a fabrication method for ceramics that allows independent control of nano- and macroscopic features. The specific problem is the inability of existing methods to produce ceramics with both complex shapes and nanoscale structures. This limitation restricts the use of ceramics in high-performance applications. The motivation is to expand the range of possible ceramic structures and properties. The authors aim to integrate self-assembly and digital fabrication techniques. They propose using polymerization-induced microphase separation during printing. The study focuses on creating polymer-derived ceramics with controlled morphologies. The purpose is to demonstrate a scalable platform for nanostructured ceramic fabrication.

The method combines self-assembly and digital fabrication to produce polymer-derived ceramics. A resin undergoes polymerization-induced microphase separation during digital light processing. The resin contains a preceramic precursor and a sacrificial polymer. The sacrificial polymer's molecular weight is adjusted to control phase domain sizes. Printed objects are pyrolyzed to form ceramics with nanoscale porosity. The process allows for complex macroscale geometries through digital light processing. The resulting materials retain nanoscale morphologies from the phase separation. The method enables independent tuning of nano- and macroscopic features.

The fabricated ceramics exhibit complex macroscale geometries and nanoscale porosity. The phase separation process produces distinct material domains at the nanoscale. The domain size is controllable via the sacrificial polymer's molecular weight. The ceramics show excellent thermal and oxidation resistance. Their thermal conduction properties depend on morphology. The method successfully integrates self- and digital assembly. The resulting materials maintain structural integrity after pyrolysis. The approach demonstrates a scalable platform for nanostructured ceramic fabrication.

The authors propose that their method provides a valuable platform for ceramic fabrication. The integration of self- and digital assembly enables controlled nano- and macroscopic structures. The results suggest that the method can be applied to various ceramic geometries. The controllability of domain sizes is attributed to the sacrificial polymer's molecular weight. The thermal and oxidation resistance of the ceramics is notable. The morphology-dependent thermal conduction supports the method's versatility. The study's findings suggest that the approach can be adapted for different applications. The authors propose that this method may expand the use of ceramics in advanced technologies.