About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
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Symposium
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Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
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Presentation Title |
Direct Ink Writing of Nanoscale Feature Ceramics via Preceramic Polymer-block Copolymer Inks |
Author(s) |
John Bowen, Matthew B. Dickerson, Jennifer A. Lewis |
On-Site Speaker (Planned) |
John Bowen |
Abstract Scope |
Preceramic polymers offer wide flexibility in terms of processing and organization, particularly in terms of their use for nanoscale ceramic fabrication. Nanoscale ceramics are of interest due to ceramics’ intrinsic high hardness and temperature resistance in combination with nanoscale advantages such as high surface area and reduced part densities. These materials hold promise in a number of areas, whether for light-weighting parts, catalysis/separation substrates, or mechanical metamaterials. We use block copolymers to template preceramic polymers for the fabrication of bulk ceramic parts with nanoscale features. By tuning the ratio of block copolymer to preceramic polymer, we are able to access a number of morphologies and resulting ceramic porosities. These materials are also useful in direct ink writing applications and can be applied to create macroscale parts (mm-m) of arbitrary geometries with nanoscale features. These materials may be useful for energy absorption applications, among others. |