期刊
CERAMICS INTERNATIONAL
卷 41, 期 6, 页码 8247-8251出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.02.150
关键词
Zirconium diboride (ZrB2); Static oxidation; Kinetics; ZrC-corroded layer
资金
- National Natural Science Foundation of China [51272266]
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure of Shanghai Institute of Ceramics
Oxidation behavior of ZrB2 SiC ceramics containing 0, 10 and 20 vol% ZrC was studied at 1600 degrees 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 a-C. 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 20 vol% ZrC. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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