3D-printed polyurea-toughened Al2O3 cellular ceramic structures: Bioinspired dual-phase interpenetrating design for superior mechanical properties
Cellular ceramic structures (CCSs) are promising candidates for structural components because of their low density and superior load-bearing capacity. However, the brittleness and poor energy-absorbing ability of CCSs severely limit their applications. Inspired by composites in natural materials, wh...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tsinghua University Press
2025-06-01
|
| Series: | Journal of Advanced Ceramics |
| Subjects: | |
| Online Access: | https://www.sciopen.com/article/10.26599/JAC.2025.9221095 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849706722322546688 |
|---|---|
| author | Xueqin Zhang Ruyue Su Xiong Gao Jingyi Chen Rujie He |
| author_facet | Xueqin Zhang Ruyue Su Xiong Gao Jingyi Chen Rujie He |
| author_sort | Xueqin Zhang |
| collection | DOAJ |
| description | Cellular ceramic structures (CCSs) are promising candidates for structural components because of their low density and superior load-bearing capacity. However, the brittleness and poor energy-absorbing ability of CCSs severely limit their applications. Inspired by composites in natural materials, whose stiff and tough constituents are arranged in a dual-phase interpenetrating architecture, we proposed a dual-phase interpenetrating architecture to achieve superior strength and toughness of CCSs simultaneously. Polyurea-toughened Al2O3 CCSs (P/CCSs) were fabricated via three-dimensional (3D) printing and infiltration. The effects of the structural configuration and relative density on the mechanical properties of P/CCSs under quasi-static and dynamic compressive loading were systematically discussed. It was demonstrated that polyurea effectively improved the mechanical properties of CCSs. The load-bearing capacity and energy-absorbing ability of P/CCSs under quasi-static compressive loading were 1.22–3.64 and 57–519 times those of CCSs. Additionally, the dynamic compressive strength and energy absorption of P/CCSs were 1.07–1.85 and 3.31–10.94 times those of CCSs. Furthermore, owing to the incorporation of polyurea, P/CCSs maintained structural integrity under large deformation, rather than undergoing catastrophic fracture. This work provides an effective solution to mitigate the adverse effects of ceramic brittleness, rendering P/CCSs promising candidates for structural components that require superior load-bearing capacity and energy-absorbing ability simultaneously. |
| format | Article |
| id | doaj-art-1b2de96edd3e4180956fcebe8dca1c4f |
| institution | DOAJ |
| issn | 2226-4108 2227-8508 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj-art-1b2de96edd3e4180956fcebe8dca1c4f2025-08-20T03:16:07ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082025-06-01146922109510.26599/JAC.2025.92210953D-printed polyurea-toughened Al2O3 cellular ceramic structures: Bioinspired dual-phase interpenetrating design for superior mechanical propertiesXueqin Zhang0Ruyue Su1Xiong Gao2Jingyi Chen3Rujie He4College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaInstitute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, ChinaInstitute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, ChinaInstitute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, ChinaInstitute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, ChinaCellular ceramic structures (CCSs) are promising candidates for structural components because of their low density and superior load-bearing capacity. However, the brittleness and poor energy-absorbing ability of CCSs severely limit their applications. Inspired by composites in natural materials, whose stiff and tough constituents are arranged in a dual-phase interpenetrating architecture, we proposed a dual-phase interpenetrating architecture to achieve superior strength and toughness of CCSs simultaneously. Polyurea-toughened Al2O3 CCSs (P/CCSs) were fabricated via three-dimensional (3D) printing and infiltration. The effects of the structural configuration and relative density on the mechanical properties of P/CCSs under quasi-static and dynamic compressive loading were systematically discussed. It was demonstrated that polyurea effectively improved the mechanical properties of CCSs. The load-bearing capacity and energy-absorbing ability of P/CCSs under quasi-static compressive loading were 1.22–3.64 and 57–519 times those of CCSs. Additionally, the dynamic compressive strength and energy absorption of P/CCSs were 1.07–1.85 and 3.31–10.94 times those of CCSs. Furthermore, owing to the incorporation of polyurea, P/CCSs maintained structural integrity under large deformation, rather than undergoing catastrophic fracture. This work provides an effective solution to mitigate the adverse effects of ceramic brittleness, rendering P/CCSs promising candidates for structural components that require superior load-bearing capacity and energy-absorbing ability simultaneously.https://www.sciopen.com/article/10.26599/JAC.2025.9221095bioinspired polyurea-toughened al2o3 cellular ceramic structures (p/ccss)compressive strengthenergy absorptiondeformationthree-dimensional (3d) printing |
| spellingShingle | Xueqin Zhang Ruyue Su Xiong Gao Jingyi Chen Rujie He 3D-printed polyurea-toughened Al2O3 cellular ceramic structures: Bioinspired dual-phase interpenetrating design for superior mechanical properties Journal of Advanced Ceramics bioinspired polyurea-toughened al2o3 cellular ceramic structures (p/ccss) compressive strength energy absorption deformation three-dimensional (3d) printing |
| title | 3D-printed polyurea-toughened Al2O3 cellular ceramic structures: Bioinspired dual-phase interpenetrating design for superior mechanical properties |
| title_full | 3D-printed polyurea-toughened Al2O3 cellular ceramic structures: Bioinspired dual-phase interpenetrating design for superior mechanical properties |
| title_fullStr | 3D-printed polyurea-toughened Al2O3 cellular ceramic structures: Bioinspired dual-phase interpenetrating design for superior mechanical properties |
| title_full_unstemmed | 3D-printed polyurea-toughened Al2O3 cellular ceramic structures: Bioinspired dual-phase interpenetrating design for superior mechanical properties |
| title_short | 3D-printed polyurea-toughened Al2O3 cellular ceramic structures: Bioinspired dual-phase interpenetrating design for superior mechanical properties |
| title_sort | 3d printed polyurea toughened al2o3 cellular ceramic structures bioinspired dual phase interpenetrating design for superior mechanical properties |
| topic | bioinspired polyurea-toughened al2o3 cellular ceramic structures (p/ccss) compressive strength energy absorption deformation three-dimensional (3d) printing |
| url | https://www.sciopen.com/article/10.26599/JAC.2025.9221095 |
| work_keys_str_mv | AT xueqinzhang 3dprintedpolyureatoughenedal2o3cellularceramicstructuresbioinspireddualphaseinterpenetratingdesignforsuperiormechanicalproperties AT ruyuesu 3dprintedpolyureatoughenedal2o3cellularceramicstructuresbioinspireddualphaseinterpenetratingdesignforsuperiormechanicalproperties AT xionggao 3dprintedpolyureatoughenedal2o3cellularceramicstructuresbioinspireddualphaseinterpenetratingdesignforsuperiormechanicalproperties AT jingyichen 3dprintedpolyureatoughenedal2o3cellularceramicstructuresbioinspireddualphaseinterpenetratingdesignforsuperiormechanicalproperties AT rujiehe 3dprintedpolyureatoughenedal2o3cellularceramicstructuresbioinspireddualphaseinterpenetratingdesignforsuperiormechanicalproperties |