Environment-friendly and reusable ink for 3D printing of metallic structures
| Autor: | Gilles L'Espérance, Chao Xu, Louis Laberge Lebel, Qinghua Wu, Daniel Therriault |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
3D printing chemistry.chemical_element Scrap 02 engineering and technology 010402 general chemistry 01 natural sciences Metal lcsh:TA401-492 General Materials Science Composite material Porosity Dissolution chemistry.chemical_classification Inkwell business.industry Mechanical Engineering Polymer 021001 nanoscience & nanotechnology Copper 0104 chemical sciences chemistry Mechanics of Materials visual_art visual_art.visual_art_medium lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology business |
| Zdroj: | Materials & Design, Vol 160, Iss, Pp 262-269 (2018) |
| ISSN: | 0264-1275 |
| Popis: | There is an increasing need for 3D printing of metallic structures in a green and cost-effective way. Here, an environment-friendly and reusable metallic ink was developed for an economical metal 3D printing method. The metallic ink is composed of steel micro powders, a biodegradable polymer: chitosan, acetic acid and deionized water. The metal 3D printing method consists of: (i) 3D printing of metallic structures using the metallic ink at room temperature, (ii) thermal treatments on the as-printed structures that decompose the polymer binder and sinter the steel powders, and (iii) an optional step: infiltrating melted copper into the sintered structures to achieve fully dense metal/metal hybrid structures. We demonstrate that any incorrectly built as-printed structures and scrap materials can be recycled and reused for 3D printing by dissolving them again in acetic acid. The fabricated structures after copper infiltration feature a low filament porosity of 1.0% which enables high properties such as an electrical conductivity of 1.3 × 106 S/m and a Young's modulus of 160 GPa. The metallic ink can be used for the 3D printing of high performance metallic structures while demonstrating a low environmental impact and a very effective utilization of metallic materials. Keywords: 3D printing, Metallic ink, Environment-friendly, Metallic structures, Secondary metal infiltration |
| Databáze: | OpenAIRE |
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