Changed oxidation behavior of ZrB2–SiC ceramics with the addition of ZrC. Issue 6 (July 2015)

• Record Type: Journal Article
• Authors: Liu, Hu-Lin; Liu, Ji-Xuan; Liu, Hai-Tao; Zhang, Guo-Jun
• Is Part Of: Ceramics international. Volume 41:Issue 6(2015)
• Page Start: 8247
• Page End: 8251
• Publication Date: 2015-07
• Subjects: Zirconium diboride (ZrB2) -- Static oxidation -- Kinetics -- ZrC-corroded layer; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.02.150
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Oxidation behavior of ZrB2 –SiC ceramics containing 0, 10 and 20 vol% 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 ZrC x O y, SiC and ZrB2, was observed in ZrB2 –SiC–ZrC. The oxidation kinetics was converted from parabolic to linear for the ceramics with 20 vol% ZrC.