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Details
Oxidation of some beta -Si3N4 Materials
| Author | Schlichting, J.; Gauckler, L.J. | |
| Year | 1977 | |
| Type | Journal Article | |
| Journal | Int. J. Powder Metall. | |
| Volume | 9 | |
| Issue | 1 | |
| Pages | 36-39 | |
| Date | 1977/2 | |
| Custom 1 | JA | |
| Custom 2 | TM | |
| Abstract | The use of the nitrogen ceramics Si3N4 and SiAION as high temperature materials is given by the formation of a glassy SiO2-surface layer. The oxidation kinetics corresponds to the known data of the permeation of molecular oxygen through the SiO2-glass layer. In the case of SiAION partly crystallized glasses are formed in which oxygen can only penetrate through the glass-phase and not through the mullite-crystalls. Hot pressed Si3N4 forms MgO-silicates with higher oxidation-rates. [18 Refs] | |
| Notes | !! no pdf | |
| Record Number | 34 | |
| Group | nonmet |
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