Polymer-derived SiAlCN ceramics resist oxidation at 1400 degrees C
Abbreviated Journal Title
SiAlCN; oxidation; precursor; AMORPHOUS-SILICON CARBONITRIDE; C-N CERAMICS; HIGH-TEMPERATURE; PRECURSOR; KINETICS; VISCOSITY; PYROLYSIS; CORROSION; BEHAVIOR; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
The oxidation kinetics of polymer-derived SiAlCN ceramics are determined at 1400 degrees C by measuring oxide-scale thickness as a function of oxidation time. The results reveal that the SiAlCN ceramics possess much better oxidation resistance than polymer-derived SiCN without Al, pure SiC and Si3N4. X-ray diffraction studies reveal that the oxide scales consist of cristobalite, plus a small amount of mullite for the sample with high aluminum-content. The reason that the SiAlCNs exhibited better oxidation resistance is discussed. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
"Polymer-derived SiAlCN ceramics resist oxidation at 1400 degrees C" (2006). Faculty Bibliography 2000s. 6693.