|About this Abstract
||MS&T21: Materials Science & Technology
||Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
||Polymer Derived Ceramics and Composites- From Nanoscale to Bulk Properties
||Lisa M. Rueschhoff, Zlatomir Apostolov, Matthew Dickerson, Michael Cinibulk
|On-Site Speaker (Planned)
||Lisa M. Rueschhoff
Historically, both inherent processing difficulties and catastrophic brittle failure in ceramics have limited their use in high stress, critical applications. Preceramic polymers offer functionality beyond conventional powder processing techniques to enable new and enhanced processing and performance for ceramics. In this presentation, critical aspects and features in the structure-properties-processing of polymer derived ceramics across all length scales will be covered. Starting at the nanoscale, manipulation of ceramic nanostructure has led to the discovery of new properties and behaviors that are distinct from the bulk scale. For example, ceramic mechanical metamaterials have been designed that exhibit ductile-like deformation and strain recovery due to their tailored nanostructure design. On the maco and bulk scale, preceramic polymer thermal evolution through cross-linking and pyrolysis leads to defect formation. Here, these defects will be discussed as they relate to different processing techniques such as additive manufacturing direct ink writing and polymer infiltration and pyrolysis.