| 초록 |
In this study, the characteristics of silicon nitride (SiN) coated on the carbon fibers by wet-thermal treatments were investigated. The organic precursor, 3-aminopropyltriethoxysilane (APS), was used as a source for ‘Si’ of SiN ceramic coating on the carbon fibers. And the NH3/N2 mix gas was used as source for ‘N’. The chemical and microstructural properties of SiN coated on carbon fiber surfaces were analysis using XRD, EDS, XPS, SEM, and TEM. Surface functionalization was quantified by EDS and XPS analysis; these compared the ratio of Si, C and N content in the coating. From the TEM analysis demonstrated that the coatings were composed of crystalline Si-C-N along with Si-N. From the XRD results, it was conjectured that the crystallite size of Si-C-N increased with increasing Si, C and N contents. |
