Digital light processing three-dimensional printing with acrylic–titanium composite powders for multiscale porous scaffolds
Porous metals fabricated via three-dimensional (3D) printing have attracted extensive attention in many fields owing to their open pores and customization potential. However, dense internal structures produced by the powder bed fusion technique fails to meet the feature of porous materials in scenar...
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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/ada979 |
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| author | Guangbin Zhao Yanlong Wu Bochen Li Hang Tian Bo Li Xiao Li Xu Chen Tao Zhou Yaning Wang Yichao Gong Dingchang Hou Yaxiong Liu Xuewen Zong Bingheng Lu |
| author_facet | Guangbin Zhao Yanlong Wu Bochen Li Hang Tian Bo Li Xiao Li Xu Chen Tao Zhou Yaning Wang Yichao Gong Dingchang Hou Yaxiong Liu Xuewen Zong Bingheng Lu |
| author_sort | Guangbin Zhao |
| collection | DOAJ |
| description | Porous metals fabricated via three-dimensional (3D) printing have attracted extensive attention in many fields owing to their open pores and customization potential. However, dense internal structures produced by the powder bed fusion technique fails to meet the feature of porous materials in scenarios that demand large specific surface areas. Herein, we propose a strategy for 3D printing of titanium scaffolds featuring multiscale porous internal structures via powder modification and digital light processing (DLP). After modification, the titanium powders were composited with acrylic resin and maintained spherical shapes. Compared with the raw powder slurries, the modified powder slurries exhibited higher stability and preferable curing characteristics, and the depth sensitivity of the modified powder slurries with 45 vol% solid loading increased by approximately 72%. Green scaffolds were subsequently printed from the slurries with a solid loading reaching 45 vol% via DLP 3D printing. The scaffolds had macropores (pore diameters of approximately 1 mm) and internal open micropores (pore diameters of approximately 5.7–13.0 μ m) after sintering. Additionally, these small-featured (approximately 320 μ m) scaffolds retained sufficient compressive strength ((70.01 ± 3.53) MPa) even with high porosity (approximately 73.95%). This work can facilitate the fabrication of multiscale porous metal scaffolds with high solid loading slurries, offering potential for applications requiring high specific surface area ratios. |
| format | Article |
| id | doaj-art-e64ea9d8f9754cc78be9761b00ce4f95 |
| 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-e64ea9d8f9754cc78be9761b00ce4f952025-02-05T13:32:53ZengIOP PublishingInternational Journal of Extreme Manufacturing2631-79902025-01-017303500310.1088/2631-7990/ada979Digital light processing three-dimensional printing with acrylic–titanium composite powders for multiscale porous scaffoldsGuangbin Zhao0Yanlong Wu1Bochen Li2Hang Tian3Bo Li4Xiao Li5https://orcid.org/0000-0002-1200-8590Xu Chen6Tao Zhou7Yaning Wang8Yichao Gong9Dingchang Hou10Yaxiong Liu11https://orcid.org/0000-0002-6418-4756Xuewen Zong12Bingheng Lu13State Key Laboratory for Manufacturing System Engineering, School of Mechanical Engineering, Xi’an Jiaotong University , Xi’an 710054, People’s Republic of ChinaSchool of Mechatronic Engineering and Automation, Foshan University , Foshan 528000, People’s Republic of China; Ji Hua Laboratory , Foshan 528200, People’s Republic of ChinaSchool of Materials Science and Engineering, Xi’an University of Technology , Xi’an 710048, People’s Republic of ChinaCollege of Mechanical Engineering, Xi’an University of Science and Technology , Xi’an 710054, People’s Republic of ChinaState Key Laboratory for Manufacturing System Engineering, School of Mechanical Engineering, Xi’an Jiaotong University , Xi’an 710054, People’s Republic of ChinaState Key Laboratory for Manufacturing System Engineering, School of Mechanical Engineering, Xi’an Jiaotong University , Xi’an 710054, People’s Republic of ChinaSchool of Mechatronic Engineering and Automation, Foshan University , Foshan 528000, People’s Republic of China; Ji Hua Laboratory , Foshan 528200, People’s Republic of ChinaState Key Laboratory for Manufacturing System Engineering, School of Mechanical Engineering, Xi’an Jiaotong University , Xi’an 710054, People’s Republic of ChinaMechanical Engineering College, Xi’an Shiyou University , Xi’an 710065, People’s Republic of ChinaSchool of Materials Science and Engineering, Xi’an University of Technology , Xi’an 710048, People’s Republic of ChinaState Key Laboratory for Manufacturing System Engineering, School of Mechanical Engineering, Xi’an Jiaotong University , Xi’an 710054, People’s Republic of ChinaSchool of Mechatronic Engineering and Automation, Foshan University , Foshan 528000, People’s Republic of China; Ji Hua Laboratory , Foshan 528200, People’s Republic of ChinaCollege of Mechanical Engineering, Xi’an University of Science and Technology , Xi’an 710054, People’s Republic of ChinaState Key Laboratory for Manufacturing System Engineering, School of Mechanical Engineering, Xi’an Jiaotong University , Xi’an 710054, People’s Republic of ChinaPorous metals fabricated via three-dimensional (3D) printing have attracted extensive attention in many fields owing to their open pores and customization potential. However, dense internal structures produced by the powder bed fusion technique fails to meet the feature of porous materials in scenarios that demand large specific surface areas. Herein, we propose a strategy for 3D printing of titanium scaffolds featuring multiscale porous internal structures via powder modification and digital light processing (DLP). After modification, the titanium powders were composited with acrylic resin and maintained spherical shapes. Compared with the raw powder slurries, the modified powder slurries exhibited higher stability and preferable curing characteristics, and the depth sensitivity of the modified powder slurries with 45 vol% solid loading increased by approximately 72%. Green scaffolds were subsequently printed from the slurries with a solid loading reaching 45 vol% via DLP 3D printing. The scaffolds had macropores (pore diameters of approximately 1 mm) and internal open micropores (pore diameters of approximately 5.7–13.0 μ m) after sintering. Additionally, these small-featured (approximately 320 μ m) scaffolds retained sufficient compressive strength ((70.01 ± 3.53) MPa) even with high porosity (approximately 73.95%). This work can facilitate the fabrication of multiscale porous metal scaffolds with high solid loading slurries, offering potential for applications requiring high specific surface area ratios.https://doi.org/10.1088/2631-7990/ada979multiscale porous metaltitanium scaffoldspowder modification3D printingsintering |
| spellingShingle | Guangbin Zhao Yanlong Wu Bochen Li Hang Tian Bo Li Xiao Li Xu Chen Tao Zhou Yaning Wang Yichao Gong Dingchang Hou Yaxiong Liu Xuewen Zong Bingheng Lu Digital light processing three-dimensional printing with acrylic–titanium composite powders for multiscale porous scaffolds International Journal of Extreme Manufacturing multiscale porous metal titanium scaffolds powder modification 3D printing sintering |
| title | Digital light processing three-dimensional printing with acrylic–titanium composite powders for multiscale porous scaffolds |
| title_full | Digital light processing three-dimensional printing with acrylic–titanium composite powders for multiscale porous scaffolds |
| title_fullStr | Digital light processing three-dimensional printing with acrylic–titanium composite powders for multiscale porous scaffolds |
| title_full_unstemmed | Digital light processing three-dimensional printing with acrylic–titanium composite powders for multiscale porous scaffolds |
| title_short | Digital light processing three-dimensional printing with acrylic–titanium composite powders for multiscale porous scaffolds |
| title_sort | digital light processing three dimensional printing with acrylic titanium composite powders for multiscale porous scaffolds |
| topic | multiscale porous metal titanium scaffolds powder modification 3D printing sintering |
| url | https://doi.org/10.1088/2631-7990/ada979 |
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