3D crosslinked and interlocked graphene nanointerface enables ultra-tough and strong alumina
The mechanics of structural ceramics, especially the toughness, are crucial to their service reliability and need to be continuously optimized. Inspired by the “brick-mortar” structure and further adjusting the microstructure of “mortar” on the interface, ceramic with strength and toughness up to 44...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Journal of Materiomics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847824002387 |
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| author | Yameng Jiao Caixiang Xiao Qingliang Shen Xuemin Yin Shouyang Zhang Wei Li Chuanyun Wang Hejun Li Qiang Song |
| author_facet | Yameng Jiao Caixiang Xiao Qingliang Shen Xuemin Yin Shouyang Zhang Wei Li Chuanyun Wang Hejun Li Qiang Song |
| author_sort | Yameng Jiao |
| collection | DOAJ |
| description | The mechanics of structural ceramics, especially the toughness, are crucial to their service reliability and need to be continuously optimized. Inspired by the “brick-mortar” structure and further adjusting the microstructure of “mortar” on the interface, ceramic with strength and toughness up to 444.16 MPa and 13.79 MPa⋅m1/2 is constructed by hot pressed sintering with alumina (Al2O3) as brick and vertical graphene (VG) with active atomic edges as mortar. Relying on the covalent interface between VG grown in-situ and Al2O3, the sliding of Al2O3 links the shear-deformation process of the crosslinked and interlocked nanointerface formed by VG, making the VG-enhanced Al2O3 ceramics (AVG) obtain super toughness. Moreover, the structure of interlocked VG-nanointerface exhibits an excellent high-temperature resistance, which makes AVG still show the excellent strength of 437.66 MPa and toughness of 11.16 MPa⋅m1/2 after heat treatment at 1500 °C for 100 h and they are respective 2.51 times and 3.18 times higher than Al2O3 in the same condition. This work provides a new thought for the preparation of high-strength, ultra-tough and high-temperature mechanical stable ceramics. |
| format | Article |
| id | doaj-art-0f6288ee57674d548da87591f4eee98a |
| institution | Kabale University |
| issn | 2352-8478 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materiomics |
| spelling | doaj-art-0f6288ee57674d548da87591f4eee98a2025-08-20T03:24:22ZengElsevierJournal of Materiomics2352-84782025-09-0111510099910.1016/j.jmat.2024.1009993D crosslinked and interlocked graphene nanointerface enables ultra-tough and strong aluminaYameng Jiao0Caixiang Xiao1Qingliang Shen2Xuemin Yin3Shouyang Zhang4Wei Li5Chuanyun Wang6Hejun Li7Qiang Song8State Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, 710072, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an, 710072, China; Corresponding author.State Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, 710072, China; Corresponding author.State Key Laboratory of Solidification Processing, Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University, Xi'an, 710072, China; Corresponding author.The mechanics of structural ceramics, especially the toughness, are crucial to their service reliability and need to be continuously optimized. Inspired by the “brick-mortar” structure and further adjusting the microstructure of “mortar” on the interface, ceramic with strength and toughness up to 444.16 MPa and 13.79 MPa⋅m1/2 is constructed by hot pressed sintering with alumina (Al2O3) as brick and vertical graphene (VG) with active atomic edges as mortar. Relying on the covalent interface between VG grown in-situ and Al2O3, the sliding of Al2O3 links the shear-deformation process of the crosslinked and interlocked nanointerface formed by VG, making the VG-enhanced Al2O3 ceramics (AVG) obtain super toughness. Moreover, the structure of interlocked VG-nanointerface exhibits an excellent high-temperature resistance, which makes AVG still show the excellent strength of 437.66 MPa and toughness of 11.16 MPa⋅m1/2 after heat treatment at 1500 °C for 100 h and they are respective 2.51 times and 3.18 times higher than Al2O3 in the same condition. This work provides a new thought for the preparation of high-strength, ultra-tough and high-temperature mechanical stable ceramics.http://www.sciencedirect.com/science/article/pii/S2352847824002387“Brick-mortar” structureActive atomic edgesGraphene nanointerfaceCrosslinked and interlocked structureStrengthen and toughen |
| spellingShingle | Yameng Jiao Caixiang Xiao Qingliang Shen Xuemin Yin Shouyang Zhang Wei Li Chuanyun Wang Hejun Li Qiang Song 3D crosslinked and interlocked graphene nanointerface enables ultra-tough and strong alumina Journal of Materiomics “Brick-mortar” structure Active atomic edges Graphene nanointerface Crosslinked and interlocked structure Strengthen and toughen |
| title | 3D crosslinked and interlocked graphene nanointerface enables ultra-tough and strong alumina |
| title_full | 3D crosslinked and interlocked graphene nanointerface enables ultra-tough and strong alumina |
| title_fullStr | 3D crosslinked and interlocked graphene nanointerface enables ultra-tough and strong alumina |
| title_full_unstemmed | 3D crosslinked and interlocked graphene nanointerface enables ultra-tough and strong alumina |
| title_short | 3D crosslinked and interlocked graphene nanointerface enables ultra-tough and strong alumina |
| title_sort | 3d crosslinked and interlocked graphene nanointerface enables ultra tough and strong alumina |
| topic | “Brick-mortar” structure Active atomic edges Graphene nanointerface Crosslinked and interlocked structure Strengthen and toughen |
| url | http://www.sciencedirect.com/science/article/pii/S2352847824002387 |
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