Comparing the influence of different kinds of zirconia on properties and microstructure of Al2O3 ceramics
This paper compared the influence of fused zirconia-corundum (AZ40), monoclinic zirconia (m-ZrO2), and 3 mol% yttria-stabilized zirconia (3Y-ZrO2) on physical properties at room temperature, hot modulus of rupture, and thermal shock resistance of Al2O3 ceramics, and their relationships with microstr...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2016-07-01
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| Series: | Science and Engineering of Composite Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/secm-2014-0232 |
| _version_ | 1818609314299904000 |
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| author | Li Wenfeng Li Suping Zhong Xiangchong |
| author_facet | Li Wenfeng Li Suping Zhong Xiangchong |
| author_sort | Li Wenfeng |
| collection | DOAJ |
| description | This paper compared the influence of fused zirconia-corundum (AZ40), monoclinic zirconia (m-ZrO2), and 3 mol% yttria-stabilized zirconia (3Y-ZrO2) on physical properties at room temperature, hot modulus of rupture, and thermal shock resistance of Al2O3 ceramics, and their relationships with microstructure changes were investigated. It was found that m-ZrO2 or 3Y-ZrO2 addition promoted the process of sintering densification and enhanced the room temperature strength and the hot modulus of rupture of Al2O3 ceramics, and the effect of the latter was more distinct, while those of the sample with AZ40 addition decreased. In addition, the three kinds of ZrO2 were beneficial to improving the thermal shock resistance of Al2O3 ceramics. All these changes had close relationships with the changes of corresponding microstructure characteristics (including distribution of particles, degree of contact between crystals, grain boundary solid solution, microcrack density) and phase composition. |
| first_indexed | 2024-12-16T14:56:34Z |
| format | Article |
| id | doaj.art-9a719b31efb54e3791c892a353a17f9c |
| institution | Directory Open Access Journal |
| issn | 0792-1233 2191-0359 |
| language | English |
| last_indexed | 2024-12-16T14:56:34Z |
| publishDate | 2016-07-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Science and Engineering of Composite Materials |
| spelling | doaj.art-9a719b31efb54e3791c892a353a17f9c2022-12-21T22:27:26ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592016-07-0123440741210.1515/secm-2014-0232Comparing the influence of different kinds of zirconia on properties and microstructure of Al2O3 ceramicsLi Wenfeng0Li Suping1Zhong Xiangchong2School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, ChinaSchool of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, ChinaSchool of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052, ChinaThis paper compared the influence of fused zirconia-corundum (AZ40), monoclinic zirconia (m-ZrO2), and 3 mol% yttria-stabilized zirconia (3Y-ZrO2) on physical properties at room temperature, hot modulus of rupture, and thermal shock resistance of Al2O3 ceramics, and their relationships with microstructure changes were investigated. It was found that m-ZrO2 or 3Y-ZrO2 addition promoted the process of sintering densification and enhanced the room temperature strength and the hot modulus of rupture of Al2O3 ceramics, and the effect of the latter was more distinct, while those of the sample with AZ40 addition decreased. In addition, the three kinds of ZrO2 were beneficial to improving the thermal shock resistance of Al2O3 ceramics. All these changes had close relationships with the changes of corresponding microstructure characteristics (including distribution of particles, degree of contact between crystals, grain boundary solid solution, microcrack density) and phase composition.https://doi.org/10.1515/secm-2014-0232al2o3 ceramicshot modulus of rupturemicrostructurephase compositionthermal shock resistancezro2 |
| spellingShingle | Li Wenfeng Li Suping Zhong Xiangchong Comparing the influence of different kinds of zirconia on properties and microstructure of Al2O3 ceramics Science and Engineering of Composite Materials al2o3 ceramics hot modulus of rupture microstructure phase composition thermal shock resistance zro2 |
| title | Comparing the influence of different kinds of zirconia on properties and microstructure of Al2O3 ceramics |
| title_full | Comparing the influence of different kinds of zirconia on properties and microstructure of Al2O3 ceramics |
| title_fullStr | Comparing the influence of different kinds of zirconia on properties and microstructure of Al2O3 ceramics |
| title_full_unstemmed | Comparing the influence of different kinds of zirconia on properties and microstructure of Al2O3 ceramics |
| title_short | Comparing the influence of different kinds of zirconia on properties and microstructure of Al2O3 ceramics |
| title_sort | comparing the influence of different kinds of zirconia on properties and microstructure of al2o3 ceramics |
| topic | al2o3 ceramics hot modulus of rupture microstructure phase composition thermal shock resistance zro2 |
| url | https://doi.org/10.1515/secm-2014-0232 |
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