Gubicza, Jenő and Arató, Péter and Wéber, Ferenc (1999) Oxidation-induced changes in mechanical properties of silicon nitride ceramics. In: Ceramics: getting into the 2000's: Proceedings of the World Ceramics Congress, part of the 9th CIMTEC-World Ceramics Congress and Forum on New Materials. Techna, Faenza, pp. 743-751.
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Abstract
The effect of oxidation on the room-temperature mechanical properties of four different silicon nitride ceramics is investigated. The strength and the elastic modulus of the whole material and the hardness, the fracture toughness and the elastic modulus of the internal region (without surface oxide layer) are determined for the materials oxidized at temperatures up to 1400°C. It is found that the fracture toughness decreases during oxidation at 1000°C. Reduction of the elastic modulus of the materials oxidized at 1400°C is also observed. A part of the changes in the mechanical properties is interpreted by the changes in the phase composition.
| Item Type: | Book Section |
|---|---|
| Additional Information: | Konferencia helye, ideje: Firenze, Olaszország, 1998.06.14-1998.06.19. |
| Subjects: | Q Science / természettudomány > QC Physics / fizika T Technology / alkalmazott, műszaki tudományok > T2 Technology (General) / műszaki tudományok általában |
| Depositing User: | Erika Bilicsi |
| Date Deposited: | 03 Apr 2013 10:06 |
| Last Modified: | 03 Apr 2013 10:06 |
| URI: | http://real.mtak.hu/id/eprint/4561 |
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