| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Preceramic Polymers; Synthesis, Processing, Modeling, and Derived Ceramics
|
| Presentation Title |
Synthesis of Precursor Derived Si(B)CN Ceramic Coating for High-temperature Applications |
| Author(s) |
Lanie Mannebach, Shakir Bin Mujib, Gurpreet Singh |
| On-Site Speaker (Planned) |
Lanie Mannebach |
| Abstract Scope |
Polymer derived ceramics (PDC) have shown promise as coatings due to their thermal stability, chemical and oxidation resistance, as well as tunable microstructure. This present work focuses on boron modified silicon carbonitride, Si(B)CN thin coating film preparation and characterization. The coatings are prepared from a polysilazane precursor by a single-step dip-coating technique. The films were transparent and dense in microstructure. Investigations on the structural and compositional development of the prepared coatings are conducted via Raman spectroscopy, Fourier-transform infrared spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy to determine the cross-linking and pyrolysis behavior, uniformity, and crack-free preparation of the coating films. The molecular structure of the preceramic polymers as well as the thermomechanical properties of the resulting Si(B)CN significantly influenced the quality of the coatings. Further thermal characterization suggested the potential of ceramic coatings in high temperature applications. |