Oxidation Properties of ZrB2-20vol.%SiC-10vol.%BN Ceramic Composite at 1200°C
Dense ZrB2-20vol.%SiC-10vol.%BN (ZSB) ceramic composites by introducing BN as the third phase are fabricated through hot pressing sintering under inert gas protected. The static oxidation behavior of the ZrB2-SiC-BN ceramic composite at 1200°C in air is analyzed using differential thermal analysis technique, and the surface morphology of the composites after oxidation at 1200°C is examined using scanning electron microscopy along with energy dispersive spectroscopy. The microstructure change and oxidation behaviors of the ZrB2-SiC-BN ceramic composite are investigated. The effect of BN grain size is analyzed and the oxidation mechanism in ceramic composites is discussed correspondingly.
Wei Pan and Jianghong Gong
G. Li and W. B. Han, "Oxidation Properties of ZrB2-20vol.%SiC-10vol.%BN Ceramic Composite at 1200°C", Advanced Materials Research, Vols. 105-106, pp. 165-167, 2010