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Liu, Hu-Lin; Liu, Ji-Xuan; Liu, Hai-Tao; Zhang, Guo-Jun
Ceramics international, 07/2015, Letnik: 41, Številka: 6Journal Article
Oxidation behavior of ZrB2–SiC ceramics containing 0, 10 and 20vol% ZrC was studied at 1600°C in stagnant air. The structures of oxide scales depended on ZrC content. The thickness of the SiO2-rich glass layer on the outermost surface decreased steeply with the addition of ZrC. One “ZrC-corroded layer”, containing ZrCxOy, SiC and ZrB2, was observed in ZrB2–SiC–ZrC. The oxidation kinetics was converted from parabolic to linear for the ceramics with 20vol% ZrC.
