About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Preceramic Polymers; Synthesis, Processing, Modeling, and Derived Ceramics
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| Presentation Title |
GNPs, NIMs, and UHTC AFPCs: Progress Toward Higher Volume Yielding Preceramics |
| Author(s) |
Jared Delcamp, Matthew Dickerson, Timothy Pruyn, Kara Martin, Christina Thompson, Nicholas Posey, Brandon Ackley, Abigail Advincula, Sophia Angelopoulos |
| On-Site Speaker (Planned) |
Jared Delcamp |
| Abstract Scope |
Ceramic matrix composites (CMCs) as refractory materials can provide enhanced capabilities for many structural systems exposed to elevated temperatures. Fabrication of CMCs can be dramatically improved with respect to ceramic filling of tight spaces within fiber weaves from the infiltration of a liquid preceramic materials followed by pyrolysis to yield the desired ceramic. However, improvements to the ceramic yield, material purity, and availability of the types of ceramics formed during this process are desirable. This presentation will focus primarily on two approaches for improving ceramic volume yield from preceramics: polymer grafted nanoparticles (GNPs) and liquid ultra-high temperature ceramics (UHTCs). The design and properties of the preceramics as well as the use of these materials in carbon fiber weave-based composites will be discussed. A range of resulting ceramic will be discussed with a focus on preceramics generating SiC and ZrC. HfC, TiC, and some high-entropy/compositionally complex ceramics will be briefly discussed. |