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Oxidation/Corrosion of Polymer‐Derived SiAlCN Ceramics in Water Vapor
Author(s) -
Wang Yiguang,
Fei Weifeng,
An Linan
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00791.x
Subject(s) - corrosion , ceramic , water vapor , materials science , annealing (glass) , polymer , chemical engineering , composite material , mineralogy , chemistry , organic chemistry , engineering
Fully dense polymer‐derived SiAlCN ceramics were exposed to pure water vapor flowing at the rate of 4.4 cm/s at 1100°C. Weight changes as a function of annealing time were recorded to illustrate the oxidation/corrosion behavior of the materials. The paralinear kinetic model was used to determine the parabolic and linear rate constants from the experimental data. The results show that the polymer‐derived SiAlCN ceramics have a much better water‐vapor corrosion resistance than pure silicon‐based ceramics.