Nanoscale visualization of the polymer to ceramic transformation under realistic pyrolysis conditions with in situ transmission electron microscopy
Abstract
Polymer derived ceramics (PDC) possess unique processability and mechanical, thermal, and environmental resistance making them ideal materials for aerospace composites and coatings. The unique structure of PDCs, consisting of amorphous ceramic nanodomains interspersed with carbon, underlies these properties. Despite the importance of this microstructure there is little understanding of how it emerges and evolves during processing. Conventional characterization has measured average bonding states and composition changes during pyrolysis, while microscopy and scattering have elucidated the structure after pyrolysis. However, there is a gap in understanding how the atomic and nanoscale structure of PDCs emerges and evolves during pyrolysis.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 06, 2025
- Source ID
- FA95502410293
Entities
People
- Taylor J Woehl
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Maryland