Self-healing fiber-reinforced composite metallic material utilizing melting–solidification and capillary action
By imparting self-healing capabilities to metallic materials, various benefits such as extending system lifespan and reducing maintenance frequency can be achieved. However, in solid metals, the atomic mobility is inherently low and diffusion rates are limited, making intrinsic self-healing extremel...
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| Language: | English |
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Elsevier
2025-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425019775 |
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| author | Shota Miyake Shunsuke Nagahama Shigeki Sugano |
| author_facet | Shota Miyake Shunsuke Nagahama Shigeki Sugano |
| author_sort | Shota Miyake |
| collection | DOAJ |
| description | By imparting self-healing capabilities to metallic materials, various benefits such as extending system lifespan and reducing maintenance frequency can be achieved. However, in solid metals, the atomic mobility is inherently low and diffusion rates are limited, making intrinsic self-healing extremely challenging. In this study, we applied the melting-solidification phenomenon to enable atomic mobility and regenerate metallic bonds at crack sites. Additionally, we leveraged capillary action to maintain the shape of the liquid metal during self-healing, thereby enabling the development of a novel self-healing metallic material. The proposed material is a composite consisting of a low-melting-point (LMP) metal with self-healing properties and a braided wire structure composed of metallic strands that retain the LMP metal through capillary action. This composite not only exhibits self-healing capabilities but also features fiber reinforcement owing to its structural design, which addresses the inherent strength limitations of LMP metals. The performance of the proposed material was evaluated through experiments focusing on self-healing and fiber reinforcement. The results demonstrated that the material recovered up to 94.6 % of its maximum strength after self-healing. Furthermore, fiber reinforcement achieved a strength two-times greater than that of the LMP metal alone. These findings suggest that the proposed composite material effectively realizes the benefits of self-healing and enhanced mechanical strength, offering significant potential for practical applications in environments requiring robust and reliable materials. |
| format | Article |
| id | doaj-art-c1ba08b86e0249c6877f02ded2d23e23 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-c1ba08b86e0249c6877f02ded2d23e232025-08-20T05:06:59ZengElsevierJournal of Materials Research and Technology2238-78542025-09-01382480248710.1016/j.jmrt.2025.08.024Self-healing fiber-reinforced composite metallic material utilizing melting–solidification and capillary actionShota Miyake0Shunsuke Nagahama1Shigeki Sugano2Department of Modern Mechanical Engineering, Waseda University, 3-4-1, Okubo, Shinjukuku, Tokyo, 169-8555, Japan; Corresponding author.Nagamori Institute of Actuators, Kyoto University of Advanced Science, 1-1 Nanjo-Oyama, Sakyo-ku, Kyoto, 606-8220, JapanDepartment of Modern Mechanical Engineering, Waseda University, 3-4-1, Okubo, Shinjukuku, Tokyo, 169-8555, JapanBy imparting self-healing capabilities to metallic materials, various benefits such as extending system lifespan and reducing maintenance frequency can be achieved. However, in solid metals, the atomic mobility is inherently low and diffusion rates are limited, making intrinsic self-healing extremely challenging. In this study, we applied the melting-solidification phenomenon to enable atomic mobility and regenerate metallic bonds at crack sites. Additionally, we leveraged capillary action to maintain the shape of the liquid metal during self-healing, thereby enabling the development of a novel self-healing metallic material. The proposed material is a composite consisting of a low-melting-point (LMP) metal with self-healing properties and a braided wire structure composed of metallic strands that retain the LMP metal through capillary action. This composite not only exhibits self-healing capabilities but also features fiber reinforcement owing to its structural design, which addresses the inherent strength limitations of LMP metals. The performance of the proposed material was evaluated through experiments focusing on self-healing and fiber reinforcement. The results demonstrated that the material recovered up to 94.6 % of its maximum strength after self-healing. Furthermore, fiber reinforcement achieved a strength two-times greater than that of the LMP metal alone. These findings suggest that the proposed composite material effectively realizes the benefits of self-healing and enhanced mechanical strength, offering significant potential for practical applications in environments requiring robust and reliable materials.http://www.sciencedirect.com/science/article/pii/S2238785425019775Self-healingComposite metalMelting–solidificationCapillary action |
| spellingShingle | Shota Miyake Shunsuke Nagahama Shigeki Sugano Self-healing fiber-reinforced composite metallic material utilizing melting–solidification and capillary action Journal of Materials Research and Technology Self-healing Composite metal Melting–solidification Capillary action |
| title | Self-healing fiber-reinforced composite metallic material utilizing melting–solidification and capillary action |
| title_full | Self-healing fiber-reinforced composite metallic material utilizing melting–solidification and capillary action |
| title_fullStr | Self-healing fiber-reinforced composite metallic material utilizing melting–solidification and capillary action |
| title_full_unstemmed | Self-healing fiber-reinforced composite metallic material utilizing melting–solidification and capillary action |
| title_short | Self-healing fiber-reinforced composite metallic material utilizing melting–solidification and capillary action |
| title_sort | self healing fiber reinforced composite metallic material utilizing melting solidification and capillary action |
| topic | Self-healing Composite metal Melting–solidification Capillary action |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425019775 |
| work_keys_str_mv | AT shotamiyake selfhealingfiberreinforcedcompositemetallicmaterialutilizingmeltingsolidificationandcapillaryaction AT shunsukenagahama selfhealingfiberreinforcedcompositemetallicmaterialutilizingmeltingsolidificationandcapillaryaction AT shigekisugano selfhealingfiberreinforcedcompositemetallicmaterialutilizingmeltingsolidificationandcapillaryaction |