A Novel High-Entropy Amorphous Thin Film with High Electrical Resistivity and Outstanding Corrosion Resistance
| Autor: | Tian-Wei Lu, Chuang-Shi Feng, Man-Zhen Lin, Tian-Li Wang, Wenjun Lu, Weibing Liao, Junhua Hou |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Amorphous metal Materials science business.industry Alloy Metals and Alloys 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering Pulsed laser deposition Amorphous solid Corrosion Electrical resistivity and conductivity 0103 physical sciences engineering Microelectronics Thin film Composite material 0210 nano-technology business |
| Zdroj: | Acta Metallurgica Sinica (English Letters). 34:1537-1545 |
| ISSN: | 2194-1289 1006-7191 |
| Popis: | This study explores a novel WNbMoTaV high-entropy thin film (HETF) in amorphous structure via pulsed laser deposition system. The formation of amorphous structure of this high-entropy alloy is ascribed to the high cooling rate during the deposition process. The HETF shows a smooth surface with a height fluctuation of less than 13 nm. This film has a high electrical resistivity of ~ 320.6 μΩ∙cm and a low corrosion current density of 0.088 μA/cm2. The corrosion resistance of the HETF at ambient temperature is superior to the conventional AISI 316L stainless steel. The high electrical resistivity and excellent corrosion resistance of the HETF are mainly attributed to its chemical disorder, cocktail effect and homogeneous amorphous structure. This experimental phenomenon not only provides a basis for the preparation of amorphous alloy films with low glass forming ability by pulsed laser deposition system, also promotes the potential application of WNbMoTaV HETF in the microelectronic components as resistivity sensors. |
| Databáze: | OpenAIRE |
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