Journal
CORROSION SCIENCE
Volume 74, Issue -, Pages 154-158Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.04.037
Keywords
Ceramic; SEM; Oxidation
Funding
- Chinese Natural Science Foundation [51172181, 90916030]
- 111 Project [B08040]
- Program for New Century Excellent Talents in University
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In this paper, we study the oxidation behaviour of a ZrB2/Al-doped SiC composite at 1500 degrees C. The composite was prepared by hot-pressing the mixture of ZrB2 and polymer-derived SiC(Al). The oxidation behaviour was studied by measuring the weight change as a function of oxidation time and by observing the structure of the oxide layer. It is shown that the ZrB2-SiC(Al) exhibits different oxidation behaviour and improved oxidation resistance as compared to the conventional ZrB2-SiC without Al-doping. The improvement in oxidation resistance is attributed to that AI-doping could increase the bond strength of the Si-O and suppress the active oxidation of SiC. (C) 2013 Elsevier Ltd. All rights reserved.
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