|About this Abstract
|MS&T23: Materials Science & Technology
|Manufacturing and Processing of Advanced Ceramic Materials
|Design of a Polymer-Metal-Nanoparticle System for Polymer Infiltration and Pyrolysis to Form Ceramic Composites
|Jared Delcamp, Kara Martin, Nicholas Posey, Katherine Acord, Christina Thompson, Matthew Dickerson
|On-Site Speaker (Planned)
Ceramic matrix composites are needed for lightweight vehicles and aircraft. Liquid preceramic materials are needed to fill tight spaces within preforms. However, improvements to the ceramic yield and availability of the types of ceramics formed upon pyrolysis are desirable. A method for improving ceramic yield and reducing polymer-to-ceramic shrinkage during polymer infiltration and pyrolysis is through the use of nanoparticle-based systems. This presentation will discuss the design of a polymer-metal-nanoparticle (PMN) system with a pyridine-based coordination polymer, a zirconium metal center, and a SiO2 nanoparticle to avoid phase separation of the nanoparticle from the polymer phase by grafting through a metal center. The preceramic PMN system was found to form ceramics in significantly higher yields after pyrolysis at 1400 oC-1600 oC than is observed from the sum of the individual components. The PMN derived ceramic material was found to give to 75% char yield.