Self-densified super-strong wood
Lightweight structural materials with high strength and toughness are highly desirable for many advanced applications. Wood, as a sustainable structural material, is widely used in engineering due to its abundance and excellent mechanical properties. In this paper, we report a self-densification str...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-05-01
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| Series: | Journal of Bioresources and Bioproducts |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2369969825000167 |
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| author | Dafang Huang Jie Li Suiyi Li Jianbing Hu Zhiru Cao Yang Guo Yu Ding Mingwei Zhu Yanfeng Chen |
| author_facet | Dafang Huang Jie Li Suiyi Li Jianbing Hu Zhiru Cao Yang Guo Yu Ding Mingwei Zhu Yanfeng Chen |
| author_sort | Dafang Huang |
| collection | DOAJ |
| description | Lightweight structural materials with high strength and toughness are highly desirable for many advanced applications. Wood, as a sustainable structural material, is widely used in engineering due to its abundance and excellent mechanical properties. In this paper, we report a self-densification strategy to develop super-strong wood by reassembling highly aligned wood fibers as functional units and self-densified without the need for hot pressing. The resulting self-densified wood exhibits ultra-high tensile strength (496.1 MPa), flexural strength (392.7 MPa) and impact toughness (75.2 kJ/m2), surpassing those of compressed densified wood and traditional metal materials like aluminum alloys. Notably, the self-densified wood exhibits uniform shrinkage in the cross-section while maintaining its longitudinal dimension. This characteristic leads to an order-of-magnitude enhancement in the overall mechanical performance of the wood, presenting a significant advantage over compressed densified wood. Such super-strong yet lightweight wood has great potential for application as a sustainable engineering material, replacing traditional structural materials such as metals and alloys. |
| format | Article |
| id | doaj-art-032133bb39f04ef3ac1f26d0140903b2 |
| institution | OA Journals |
| issn | 2369-9698 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Bioresources and Bioproducts |
| spelling | doaj-art-032133bb39f04ef3ac1f26d0140903b22025-08-20T02:12:46ZengKeAi Communications Co., Ltd.Journal of Bioresources and Bioproducts2369-96982025-05-0110219920810.1016/j.jobab.2025.03.001Self-densified super-strong woodDafang Huang0Jie Li1Suiyi Li2Jianbing Hu3Zhiru Cao4Yang Guo5Yu Ding6Mingwei Zhu7Yanfeng Chen8National Laboratory of Solid State Microstructures & Jiangsu Key Laboratory of Artificial Functional Materials & Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures & Jiangsu Key Laboratory of Artificial Functional Materials & Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures & Jiangsu Key Laboratory of Artificial Functional Materials & Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures & Jiangsu Key Laboratory of Artificial Functional Materials & Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures & Jiangsu Key Laboratory of Artificial Functional Materials & Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures & Jiangsu Key Laboratory of Artificial Functional Materials & Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures & Jiangsu Key Laboratory of Artificial Functional Materials & Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaCorresponding authors.; National Laboratory of Solid State Microstructures & Jiangsu Key Laboratory of Artificial Functional Materials & Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaCorresponding authors.; National Laboratory of Solid State Microstructures & Jiangsu Key Laboratory of Artificial Functional Materials & Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, ChinaLightweight structural materials with high strength and toughness are highly desirable for many advanced applications. Wood, as a sustainable structural material, is widely used in engineering due to its abundance and excellent mechanical properties. In this paper, we report a self-densification strategy to develop super-strong wood by reassembling highly aligned wood fibers as functional units and self-densified without the need for hot pressing. The resulting self-densified wood exhibits ultra-high tensile strength (496.1 MPa), flexural strength (392.7 MPa) and impact toughness (75.2 kJ/m2), surpassing those of compressed densified wood and traditional metal materials like aluminum alloys. Notably, the self-densified wood exhibits uniform shrinkage in the cross-section while maintaining its longitudinal dimension. This characteristic leads to an order-of-magnitude enhancement in the overall mechanical performance of the wood, presenting a significant advantage over compressed densified wood. Such super-strong yet lightweight wood has great potential for application as a sustainable engineering material, replacing traditional structural materials such as metals and alloys.http://www.sciencedirect.com/science/article/pii/S2369969825000167Self-densificationMechanical propertyMicrostructure regulationLightweightWood |
| spellingShingle | Dafang Huang Jie Li Suiyi Li Jianbing Hu Zhiru Cao Yang Guo Yu Ding Mingwei Zhu Yanfeng Chen Self-densified super-strong wood Journal of Bioresources and Bioproducts Self-densification Mechanical property Microstructure regulation Lightweight Wood |
| title | Self-densified super-strong wood |
| title_full | Self-densified super-strong wood |
| title_fullStr | Self-densified super-strong wood |
| title_full_unstemmed | Self-densified super-strong wood |
| title_short | Self-densified super-strong wood |
| title_sort | self densified super strong wood |
| topic | Self-densification Mechanical property Microstructure regulation Lightweight Wood |
| url | http://www.sciencedirect.com/science/article/pii/S2369969825000167 |
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