Centimetre-scale crack-free self-assembly for ultra-high tensile strength metallic nanolattices
| Autor: | Zhimin Jiang, James H. Pikul |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Fabrication
Materials science Mechanical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Grain size 0104 chemical sciences Nickel chemistry Mechanics of Materials Ultimate tensile strength General Materials Science Nanometre Self-assembly Composite material 0210 nano-technology Porosity Porous medium |
| Zdroj: | Nature Materials. 20:1512-1518 |
| ISSN: | 1476-4660 1476-1122 |
| DOI: | 10.1038/s41563-021-01039-7 |
| Popis: | Nanolattices exhibit attractive mechanical, energy conversion and optical properties, but it is challenging to fabricate large nanolattices while maintaining the dense regular nanometre features that enable their properties. Here we report a crack-free self-assembly approach for fabricating centimetre-scale nickel nanolattices with much larger crack-free areas than prior self-assembled nanolattices and many more unit cells than three-dimensionally printed nanolattices. These nickel nanolattices have a feature size of 100 nm, a grain size of 30 nm and a tensile strength of 260 MPa, which approaches the theoretical strength limit for porous nickel. The self-assembly method and porous metal mechanics reported in this work may advance the fabrication and applications of high-strength multifunctional porous materials. |
| Databáze: | OpenAIRE |
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