FUNDAMENTAL UNDERSTANDING AND SYNTHESIS OF POLYMER DERIVED HIGH TEMPERATURE CERAMIC NANOCOMPOSITES
Abstract
This program focuses on fundamental understanding and atomic level tuning of multiphase carbide and boride materials by exploring species interactions during polymer to ceramic conversion as well as high temperature phase formation and evolution. The goal is to advance a new and broadly applicable high temperature nanocomposite synthesis approach through molecular level intermixing and pyrolysis. Based on fundamental studies of atomic level bonding and phase evolution using both computational thermodynamics and experimental thermodynamics, we aim to demonstrate the general applicability of this new synthesis paradigm by creating a novel class of low density materials, which should have interlocking and-or high entropy nanostructures with high thermal stability and good electrical conductivity. Such materials will progressively include SiC-TiC, SiC-TiC-TiB2, (Si,Ti,Zr)C, and (Si,Ti,Zr,Hf)C composites with an increasing number of ingredients and more microstructural complexity.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 07, 2023
- Source ID
- FA95502210081
Entities
People
- Kathy Lu
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- Virginia Tech