Coating formed by SiBCN single source precursor via UV-photopolymerization

Polymer derived SiBCN ceramics (PDCs) exhibit many excellent properties such as high-temperature stability and oxygen resistance. In this work, the SiBCN-containing UV-curable single source precursor a-TSEB was used as the starting material to prepare ceramic coating. The ceramic coating was prepared via spin coating, UV-polymerization and pyrolysis. The viscosity of the precursor was tested which is fluctuated around 57.75 mPa·s, means that the viscosity is low enough to coat on the surface of substrate. SEM micrographs showed that the compacted coatings are formed without any penetrating cracks or holes on samples and the interface bonding performance is good.