Surface modification toughening of partially stabilized zirconia ceramics: by sub-eutectoid solution annealing
Abstract In this investigation, surface modification toughening of partially stabilized zirconia ceramics, by sub-eutectoid solution annealing, has been performed. The Zr0.918Mg0.068Y0.014O1.925 designated (MZY) was prepared by mixing Magnesia Partially Stabilized Zirconia (MZ9) and Yttria Tetragona...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2023-06-01
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| Series: | SN Applied Sciences |
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| Online Access: | https://doi.org/10.1007/s42452-023-05394-9 |
| _version_ | 1797806579014172672 |
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| author | M. El-Sayed Ali S. El-Houte Omyma H. Ibrahim Kolthoum I. Othman A. A. Hassan |
| author_facet | M. El-Sayed Ali S. El-Houte Omyma H. Ibrahim Kolthoum I. Othman A. A. Hassan |
| author_sort | M. El-Sayed Ali |
| collection | DOAJ |
| description | Abstract In this investigation, surface modification toughening of partially stabilized zirconia ceramics, by sub-eutectoid solution annealing, has been performed. The Zr0.918Mg0.068Y0.014O1.925 designated (MZY) was prepared by mixing Magnesia Partially Stabilized Zirconia (MZ9) and Yttria Tetragonal Zirconia (TZ3Y) Polycrystal commercial powders using wet ball milling. The mechanical properties and microstructure of the MZY were investigated. XRD and SEM were used for phase analysis and microstructure examination of the sintered samples’ surfaces. The fracture toughness and hardness of the sintered compacts were determined by the Vickers indentation technique. The physical and mechanical properties of MZY were compared to those of MZ9 ceramics prepared under the same conditions. The results showed that, the Yttria addition inhibited the exaggerated growth of the tetragonal precipitates during sintering. The MZY showed a maximum in the fracture toughness of 12.9 MPa√m upon sub-eutectoid solution annealing at 1000 °C for 150 h, while the tetragonal precipitates in the MZ9 lost coherence due to their spontaneous massive transformation to the monoclinic phase via the decomposition reaction. |
| first_indexed | 2024-03-13T06:09:24Z |
| format | Article |
| id | doaj.art-77b8619e127640db9f5bd5006dcc91c1 |
| institution | Directory Open Access Journal |
| issn | 2523-3963 2523-3971 |
| language | English |
| last_indexed | 2024-03-13T06:09:24Z |
| publishDate | 2023-06-01 |
| publisher | Springer |
| record_format | Article |
| series | SN Applied Sciences |
| spelling | doaj.art-77b8619e127640db9f5bd5006dcc91c12023-06-11T11:22:21ZengSpringerSN Applied Sciences2523-39632523-39712023-06-01571910.1007/s42452-023-05394-9Surface modification toughening of partially stabilized zirconia ceramics: by sub-eutectoid solution annealingM. El-Sayed Ali0S. El-Houte1Omyma H. Ibrahim2Kolthoum I. Othman3A. A. Hassan4Metallurgy Department, NRC Nuclear Research Centre, Egyptian Atomic Energy AuthorityMetallurgy Department, NRC Nuclear Research Centre, Egyptian Atomic Energy AuthorityMetallurgy Department, NRC Nuclear Research Centre, Egyptian Atomic Energy AuthorityMetallurgy Department, NRC Nuclear Research Centre, Egyptian Atomic Energy AuthorityMetallurgy Department, NRC Nuclear Research Centre, Egyptian Atomic Energy AuthorityAbstract In this investigation, surface modification toughening of partially stabilized zirconia ceramics, by sub-eutectoid solution annealing, has been performed. The Zr0.918Mg0.068Y0.014O1.925 designated (MZY) was prepared by mixing Magnesia Partially Stabilized Zirconia (MZ9) and Yttria Tetragonal Zirconia (TZ3Y) Polycrystal commercial powders using wet ball milling. The mechanical properties and microstructure of the MZY were investigated. XRD and SEM were used for phase analysis and microstructure examination of the sintered samples’ surfaces. The fracture toughness and hardness of the sintered compacts were determined by the Vickers indentation technique. The physical and mechanical properties of MZY were compared to those of MZ9 ceramics prepared under the same conditions. The results showed that, the Yttria addition inhibited the exaggerated growth of the tetragonal precipitates during sintering. The MZY showed a maximum in the fracture toughness of 12.9 MPa√m upon sub-eutectoid solution annealing at 1000 °C for 150 h, while the tetragonal precipitates in the MZ9 lost coherence due to their spontaneous massive transformation to the monoclinic phase via the decomposition reaction.https://doi.org/10.1007/s42452-023-05394-9Sub-eutectoidSolution annealingTransformable tetragonal precipitatesSurface modification tougheningDecomposition reaction |
| spellingShingle | M. El-Sayed Ali S. El-Houte Omyma H. Ibrahim Kolthoum I. Othman A. A. Hassan Surface modification toughening of partially stabilized zirconia ceramics: by sub-eutectoid solution annealing SN Applied Sciences Sub-eutectoid Solution annealing Transformable tetragonal precipitates Surface modification toughening Decomposition reaction |
| title | Surface modification toughening of partially stabilized zirconia ceramics: by sub-eutectoid solution annealing |
| title_full | Surface modification toughening of partially stabilized zirconia ceramics: by sub-eutectoid solution annealing |
| title_fullStr | Surface modification toughening of partially stabilized zirconia ceramics: by sub-eutectoid solution annealing |
| title_full_unstemmed | Surface modification toughening of partially stabilized zirconia ceramics: by sub-eutectoid solution annealing |
| title_short | Surface modification toughening of partially stabilized zirconia ceramics: by sub-eutectoid solution annealing |
| title_sort | surface modification toughening of partially stabilized zirconia ceramics by sub eutectoid solution annealing |
| topic | Sub-eutectoid Solution annealing Transformable tetragonal precipitates Surface modification toughening Decomposition reaction |
| url | https://doi.org/10.1007/s42452-023-05394-9 |
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