Synthesis of bioinspired ice-templated bulk metallic glass-alumina composites with intertwined dendritic structure
| Autor: | Amy Wat, Je In Lee, Chae Woo Ryu, Robert O. Ritchie, Jinyeon Kim, Hye Jung Chang, Eun Soo Park |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Amorphous metal Ice crystals Mechanical Engineering Composite number Metals and Alloys 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Temperature gradient Compressive strength Mechanics of Materials visual_art 0103 physical sciences visual_art.visual_art_medium General Materials Science Ceramic Composite material 0210 nano-technology |
| Zdroj: | Scripta Materialia. 172:159-164 |
| ISSN: | 1359-6462 |
| Popis: | We have successfully developed bulk-metallic glass (BMG) composites reinforced with intertwined dendritic alumina, inspired by the structure of nacre (Abalone shells). We harness the dendritic growth of ice crystals in a thermal gradient to assemble an alumina with dendritic pore architecture, which is then infiltrated with BMG-forming melt to make a bioinspired, micrometer-scale, intertwined BMG-alumina composite. The composite exhibits ultra-high strength with exceptional relative compressive strength, far better than ceramic particulate BMG composites. The method presented here can be further exploited to produce novel BMG composites with excellent mechanical properties. |
| Databáze: | OpenAIRE |
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