Sintering of Si3N4-Y2O3 Under Nitrogen Pressure |
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| Authors: | F S Galasso R D Veltri |
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| Affiliation: | United Technologies Corporation, East Hartford, Connecticut 06108 |
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| Abstract: | This study shows that the amount ofAl2O3 needed to form high density Si3N4-15Y2-O3 samples can be reduced by using high surface area Si3N4 powder and high N2 overpressure (high sintering temperatures) during the sintering process. The reduction in AI2O3 content results in improved oxidation resistance of the sintered samples. |
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