Effects of sintering curves on microstructure, physical and mechanical properties and on low temperature degradation of zirconia-toughened alumina
| Parent link: | Journal of the European Ceramic Society Vol. 41, iss. 16.— 2021.— [P. 274-281] |
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| Müşterek Yazar: | |
| Diğer Yazarlar: | , , , , |
| Özet: | Title screen The objective of this work was to study two-step sintering as a means of controlling the microstructure of coarse Al2O3 matrix composites containing submicrometric and nanometric inclusions of ZrO2 ranging from 0–30 wt. % by weight based on commercially available powders and evaluate its hydrothermal degradation as function of a water vapour pressure and its mechanical properties. The results showed that two-step sintering allowed a more efficient microstructural control than single-step sintering, resulting in good mechanical properties. The highest flexural strength was achieved for ZTA samples sintered in two-stage sintering conditions TSS2 with T1=1560 °C for 3 h, T2=1460 °C for 8 h. The studied composites showed good resistance to hydrothermal degradation compared to composites sintered in single step sintering conditions Режим доступа: по договору с организацией-держателем ресурса |
| Baskı/Yayın Bilgisi: |
2021
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| Konular: | |
| Online Erişim: | https://doi.org/10.1016/j.jeurceramsoc.2021.09.009 |
| Materyal Türü: | Elektronik Kitap Bölümü |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666228 |
| Özet: | Title screen The objective of this work was to study two-step sintering as a means of controlling the microstructure of coarse Al2O3 matrix composites containing submicrometric and nanometric inclusions of ZrO2 ranging from 0–30 wt. % by weight based on commercially available powders and evaluate its hydrothermal degradation as function of a water vapour pressure and its mechanical properties. The results showed that two-step sintering allowed a more efficient microstructural control than single-step sintering, resulting in good mechanical properties. The highest flexural strength was achieved for ZTA samples sintered in two-stage sintering conditions TSS2 with T1=1560 °C for 3 h, T2=1460 °C for 8 h. The studied composites showed good resistance to hydrothermal degradation compared to composites sintered in single step sintering conditions Режим доступа: по договору с организацией-держателем ресурса |
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| DOI: | 10.1016/j.jeurceramsoc.2021.09.009 |