Oxidation and salt corrosion of an Si{sub 2}N{sub 2}O-ZrO{sub 2} composite material
- Univ. of Technology, Goeteborg (Sweden)
- Swedish Ceramic Institute, Goeteborg (Sweden)
The oxidation/corrosion resistance in dry and humid environments of a low-cost, porous Si{sub 2}N{sub 2}O-ZrO{sub 2} composite material has been investigated. The oxidation experiments were carried out in a tube furnace in dry and humid oxygen (10% H{sub 2}O). For the corrosion experiments an aerosol generator was used capable of controlling the salt concentration (NaCl) during the corrosion experiments. The extent of internal oxidation has been found to be dependent on the oxidation temperature. Very good oxidation resistance has been observed at temperatures >1300{degrees}C. It was confirmed that at 1000{degrees}C oxidation occurs homogeneously throughout the specimen while at higher temperatures pore sealing occurs after the initial oxidation.
- OSTI ID:
- 567567
- Report Number(s):
- CONF-960106--
- Country of Publication:
- United States
- Language:
- English
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