| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Preceramic Polymers; Synthesis, Processing, Modeling, and Derived Ceramics
|
| Presentation Title |
Preparation of ZrC-embedded Glass-like Carbon Wires via Thermal Decomposition of Metal Organic Frameworks |
| Author(s) |
Kaitlyn Shirey, Brittany Bonnett, Xiaozhou Yang, Amanda Morris, Carolina Tallon |
| On-Site Speaker (Planned) |
Kaitlyn Shirey |
| Abstract Scope |
Metal organic frameworks (MOFs) are crystalline coordination polymers composed of multidentate organic linkers bridging metal nodes to form porous structures. The carbonization of MOFs has several advantages for synthesis of materials, from simple preparation to great freedom for modification. In this study, we show an alternate route to the synthesis of zirconium carbide (ZrC) within a highly anisotropic particle through heat treatment at 2000°C of MOF PCN-222. Resulting particles show the same needle-like morphology as MOF particles, but now consist of a glass-like carbon skeleton with embedded ZrC crystals. The new morphology is visible in electron microscope images. Thermogravimetric analysis was used to confirm the MOF decomposition, and through diffraction and spectroscopy methods, the particles are determined to be ZrC crystals within a glass-like carbon matrix. These wire-like particles have potential as reinforcements for high temperature applications and as a synthetic route for ultra-high temperature ceramics with unique morphologies. |