A microstructural study on the alkali-treated titanium subjected to induction heating
Alkali-treated titanium and its alloys (with or without heat treatment) have been paid more attention in the biomaterial field for the formation of a nanoporous layer that can induce apatite deposition and improve bone-implant integration. In this work, a hierarchical micro-nano structure was fabric...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422011279 |
| _version_ | 1811253081501859840 |
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| author | Xin Chen Rui-fu Zhu Han Gao Wei-li Xu Gui-yong Xiao Wen-hua Xu Yu-peng Lu |
| author_facet | Xin Chen Rui-fu Zhu Han Gao Wei-li Xu Gui-yong Xiao Wen-hua Xu Yu-peng Lu |
| author_sort | Xin Chen |
| collection | DOAJ |
| description | Alkali-treated titanium and its alloys (with or without heat treatment) have been paid more attention in the biomaterial field for the formation of a nanoporous layer that can induce apatite deposition and improve bone-implant integration. In this work, a hierarchical micro-nano structure was fabricated by alkali treatment and subsequent induction heating at different temperatures. The surface morphology, phase composition, microstructure, and elemental binding state were investigated using scanning electron microscopy (SEM), X-ray diffractometer (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS), respectively. As the induction heating temperature increases, the porous structure of the outmost sodium titanate layer is maintained with increased anatase TiO2 and decreased wetting angle from 21.8° to 11.8°. At a relatively high temperature (700 °C), the composite layer is composed of a porous sodium titanate layer with a thickness of around 1 μm and a titanium oxide layer of about 2 μm thickness with nanopores. Importantly, the amorphous structure with the oxygen vacancy that exists on the sample surface is conducive to apatite deposition. The assessment of the in-vitro bioactivity performed in 1.5 simulated body fluid shows that the ability to induce apatite deposition increases with the increasing induction heating temperature from 500 to 700 °C. These results are helpful to understand the microstructure of the alkali and induction heating treated titanium that may be responsible for its bioactivity. |
| first_indexed | 2024-04-12T16:45:26Z |
| format | Article |
| id | doaj.art-ab16380237bf4edca5835c69c29b7b85 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-12T16:45:26Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-ab16380237bf4edca5835c69c29b7b852022-12-22T03:24:37ZengElsevierJournal of Materials Research and Technology2238-78542022-09-0120281290A microstructural study on the alkali-treated titanium subjected to induction heatingXin Chen0Rui-fu Zhu1Han Gao2Wei-li Xu3Gui-yong Xiao4Wen-hua Xu5Yu-peng Lu6Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, China; School of Materials Science and Engineering, Shandong University, Jinan 250061, ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, China; School of Materials Science and Engineering, Shandong University, Jinan 250061, ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, China; School of Materials Science and Engineering, Shandong University, Jinan 250061, ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, China; School of Materials Science and Engineering, Shandong University, Jinan 250061, ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, China; School of Materials Science and Engineering, Shandong University, Jinan 250061, China; Suzhou Institute of Shandong University, Suzhou, 215123, ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, China; School of Materials Science and Engineering, Shandong University, Jinan 250061, China; Suzhou Institute of Shandong University, Suzhou, 215123, ChinaKey Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, China; School of Materials Science and Engineering, Shandong University, Jinan 250061, China; Suzhou Institute of Shandong University, Suzhou, 215123, China; Corresponding author.Alkali-treated titanium and its alloys (with or without heat treatment) have been paid more attention in the biomaterial field for the formation of a nanoporous layer that can induce apatite deposition and improve bone-implant integration. In this work, a hierarchical micro-nano structure was fabricated by alkali treatment and subsequent induction heating at different temperatures. The surface morphology, phase composition, microstructure, and elemental binding state were investigated using scanning electron microscopy (SEM), X-ray diffractometer (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS), respectively. As the induction heating temperature increases, the porous structure of the outmost sodium titanate layer is maintained with increased anatase TiO2 and decreased wetting angle from 21.8° to 11.8°. At a relatively high temperature (700 °C), the composite layer is composed of a porous sodium titanate layer with a thickness of around 1 μm and a titanium oxide layer of about 2 μm thickness with nanopores. Importantly, the amorphous structure with the oxygen vacancy that exists on the sample surface is conducive to apatite deposition. The assessment of the in-vitro bioactivity performed in 1.5 simulated body fluid shows that the ability to induce apatite deposition increases with the increasing induction heating temperature from 500 to 700 °C. These results are helpful to understand the microstructure of the alkali and induction heating treated titanium that may be responsible for its bioactivity.http://www.sciencedirect.com/science/article/pii/S2238785422011279TitaniumAlkali treatmentInduction heatingPorous structureOxygen vacancy |
| spellingShingle | Xin Chen Rui-fu Zhu Han Gao Wei-li Xu Gui-yong Xiao Wen-hua Xu Yu-peng Lu A microstructural study on the alkali-treated titanium subjected to induction heating Journal of Materials Research and Technology Titanium Alkali treatment Induction heating Porous structure Oxygen vacancy |
| title | A microstructural study on the alkali-treated titanium subjected to induction heating |
| title_full | A microstructural study on the alkali-treated titanium subjected to induction heating |
| title_fullStr | A microstructural study on the alkali-treated titanium subjected to induction heating |
| title_full_unstemmed | A microstructural study on the alkali-treated titanium subjected to induction heating |
| title_short | A microstructural study on the alkali-treated titanium subjected to induction heating |
| title_sort | microstructural study on the alkali treated titanium subjected to induction heating |
| topic | Titanium Alkali treatment Induction heating Porous structure Oxygen vacancy |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422011279 |
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