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Silicoaluminum carbonitride ceramic resist to oxidation/corrosion in water vapor

Published online by Cambridge University Press:  01 July 2006

Yiguang Wang ,
Weifeng Fei ,
Yi Fan ,
Ligong Zhang ,
Wenge Zhang  and
Linan An
Yiguang Wang
Affiliation:
Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816
Weifeng Fei
Affiliation:
Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816
Yi Fan
Affiliation:
Laboratory of Excited State Process, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130032, People's Republic of China
Ligong Zhang
Affiliation:
Laboratory of Excited State Process, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130032, People's Republic of China
Wenge Zhang
Affiliation:
Sporian Microsystem Inc., Lafayette, Colorado 80026
Linan An*
Affiliation:
Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

The oxidation behavior of polymer-derived SiAlCN ceramic in a water vapor environment was studied at 1400 °C. The oxidation and corrosion rates of the SiAlCN are much lower than those of SiCN and pure silicon-based ceramics. The material retains about 75% of its original strength after exposure in water vapor for 300 h at 1400 °C. It is believed that the superior resistance of the SiAlCN to water vapor-related oxidation and corrosion is due to the formation of an aluminum-doped silica layer, in which the aluminum has reduced the activity of the silica.

Keywords

CeramicCorrosionOxidation
Type
Rapid Communications
Information
Journal of Materials Research , Volume 21 , Issue 7 , July 2006 , pp. 1625 - 1628
Copyright
Copyright © Materials Research Society 2006

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