Superelastic NiTi scaffolds with extensively tuneable mechanical and mass transfer properties
Natural bones exhibit a substantial recoverable strain ( ϵ _rec ) of 2%‒4% and vary in mechanical and mass transfer properties across different body regions. Integrating these attributes is essential for the functionality and therapeutic efficacy of metallic scaffolds used in bone defect treatment....
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | International Journal of Extreme Manufacturing |
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| Online Access: | https://doi.org/10.1088/2631-7990/adf01e |
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| _version_ | 1849251587631874048 |
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| author | Shiyu Zhong Lei Zhang Ying Li Wanying Wang Gan Li Yulun Luo Dingfei Zhang Jian Lu |
| author_facet | Shiyu Zhong Lei Zhang Ying Li Wanying Wang Gan Li Yulun Luo Dingfei Zhang Jian Lu |
| author_sort | Shiyu Zhong |
| collection | DOAJ |
| description | Natural bones exhibit a substantial recoverable strain ( ϵ _rec ) of 2%‒4% and vary in mechanical and mass transfer properties across different body regions. Integrating these attributes is essential for the functionality and therapeutic efficacy of metallic scaffolds used in bone defect treatment. This study presents innovative superelastic nickel-titanium (NiTi) scaffolds with a remarkable maximum ϵ _rec of 6%‒7% and extensive tuneability in elastic modulus, cyclic stress, compressive strength, specific damping capacity, and permeability. These impressive performance integrations are attributed to carefully designed structures featuring stable austenite phases with hierarchical microstructures and gyroid-sheet macrostructures. Physical experiments and computational simulations illustrate that this unique structure combination promotes martensitic transformation during deformation and allows the tuning of mechanical and mass transfer properties without compromising superelasticity. The deformation-recoverable and performance-tuneable NiTi scaffolds are more adaptive than their conventional counterparts, offering a versatile solution for diverse bone implantation needs. In addition to scaffold applications, this study provides valuable insights for developing advanced multifunctional metamaterials applicable in other fields. |
| format | Article |
| id | doaj-art-b1d43ac2180a491cb915aa5a3c01f31e |
| institution | Kabale University |
| issn | 2631-7990 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | International Journal of Extreme Manufacturing |
| spelling | doaj-art-b1d43ac2180a491cb915aa5a3c01f31e2025-08-20T03:56:54ZengIOP PublishingInternational Journal of Extreme Manufacturing2631-79902025-01-017606550710.1088/2631-7990/adf01eSuperelastic NiTi scaffolds with extensively tuneable mechanical and mass transfer propertiesShiyu Zhong0https://orcid.org/0000-0002-8080-189XLei Zhang1Ying Li2Wanying Wang3Gan Li4Yulun Luo5Dingfei Zhang6Jian Lu7https://orcid.org/0000-0001-5362-0316City University of Hong Kong Matter Science Research Institute (Futian) , Shenzhen, 518057, People’s Republic of China; Department of Mechanical Engineering, City University of Hong Kong , Hong Kong Special Administrative Region of China 999077, People’s Republic of ChinaCity University of Hong Kong Matter Science Research Institute (Futian) , Shenzhen, 518057, People’s Republic of China; Department of Mechanical Engineering, City University of Hong Kong , Hong Kong Special Administrative Region of China 999077, People’s Republic of ChinaCity University of Hong Kong Matter Science Research Institute (Futian) , Shenzhen, 518057, People’s Republic of ChinaDepartment of Biomedical Sciences, City University of Hong Kong , Hong Kong Special Administrative Region of China, 999077, People’s Republic of ChinaCity University of Hong Kong Matter Science Research Institute (Futian) , Shenzhen, 518057, People’s Republic of China; Department of Mechanical Engineering, City University of Hong Kong , Hong Kong Special Administrative Region of China 999077, People’s Republic of ChinaNational Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University , Chongqing 400045, People’s Republic of ChinaNational Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University , Chongqing 400045, People’s Republic of ChinaCity University of Hong Kong Matter Science Research Institute (Futian) , Shenzhen, 518057, People’s Republic of China; Department of Mechanical Engineering, City University of Hong Kong , Hong Kong Special Administrative Region of China 999077, People’s Republic of China; Department of Biomedical Sciences, City University of Hong Kong , Hong Kong Special Administrative Region of China, 999077, People’s Republic of China; Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute , Shenzhen 518057, People’s Republic of ChinaNatural bones exhibit a substantial recoverable strain ( ϵ _rec ) of 2%‒4% and vary in mechanical and mass transfer properties across different body regions. Integrating these attributes is essential for the functionality and therapeutic efficacy of metallic scaffolds used in bone defect treatment. This study presents innovative superelastic nickel-titanium (NiTi) scaffolds with a remarkable maximum ϵ _rec of 6%‒7% and extensive tuneability in elastic modulus, cyclic stress, compressive strength, specific damping capacity, and permeability. These impressive performance integrations are attributed to carefully designed structures featuring stable austenite phases with hierarchical microstructures and gyroid-sheet macrostructures. Physical experiments and computational simulations illustrate that this unique structure combination promotes martensitic transformation during deformation and allows the tuning of mechanical and mass transfer properties without compromising superelasticity. The deformation-recoverable and performance-tuneable NiTi scaffolds are more adaptive than their conventional counterparts, offering a versatile solution for diverse bone implantation needs. In addition to scaffold applications, this study provides valuable insights for developing advanced multifunctional metamaterials applicable in other fields.https://doi.org/10.1088/2631-7990/adf01eadditive manufacturingscaffoldssuperelasticitytriply periodic minimal surfaces |
| spellingShingle | Shiyu Zhong Lei Zhang Ying Li Wanying Wang Gan Li Yulun Luo Dingfei Zhang Jian Lu Superelastic NiTi scaffolds with extensively tuneable mechanical and mass transfer properties International Journal of Extreme Manufacturing additive manufacturing scaffolds superelasticity triply periodic minimal surfaces |
| title | Superelastic NiTi scaffolds with extensively tuneable mechanical and mass transfer properties |
| title_full | Superelastic NiTi scaffolds with extensively tuneable mechanical and mass transfer properties |
| title_fullStr | Superelastic NiTi scaffolds with extensively tuneable mechanical and mass transfer properties |
| title_full_unstemmed | Superelastic NiTi scaffolds with extensively tuneable mechanical and mass transfer properties |
| title_short | Superelastic NiTi scaffolds with extensively tuneable mechanical and mass transfer properties |
| title_sort | superelastic niti scaffolds with extensively tuneable mechanical and mass transfer properties |
| topic | additive manufacturing scaffolds superelasticity triply periodic minimal surfaces |
| url | https://doi.org/10.1088/2631-7990/adf01e |
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