Identifying surface structural changes in a newly-developed Ga-based alloy with melting temperature below 10 °C
| Autor: | Zong Junjie, Qiubo Zhang, S.Y. Liu, Wang Xuelin, Dongxian Zhang, Haimei Zheng, Qingping Cao, Q. Yu, Xiaodong Wang, Jianzhong Jiang |
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| Rok vydání: | 2019 |
| Předmět: |
Liquid metal
Materials science Alloy Oxide General Physics and Astronomy 02 engineering and technology Surfaces and Interfaces General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Chemical reaction 0104 chemical sciences Surfaces Coatings and Films Amorphous solid chemistry.chemical_compound chemistry Chemical engineering Transmission electron microscopy engineering Irradiation 0210 nano-technology Layer (electronics) |
| Zdroj: | Applied Surface Science. 492:143-149 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2019.06.203 |
| Popis: | Surface oxidation, as one of fundamental chemical reactions in metals, greatly affects their properties. Herein, we develop a new quaternary GaInSnZn liquid metal with the melting temperature of 9.7 °C, which is the lowest among all reported Ga-based liquid metals. With high-resolution transmission electron microscopy, we directly observed the oxide layer formed on the surface of the liquid metal. The initially formed oxide layer is revealed to be amorphous and very sensitive to electron beam. Prolonged irradiation results in its structural change from amorphous to crystalline phases. The present finding refreshes the basic understanding of surface oxidization of liquid metals and opens up the possibility of tuning surface structures and morphologies by using electron beam irradiation. |
| Databáze: | OpenAIRE |
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