| Autor: |
Gangopadhyay, A. K., Pueblo, C. E., Dai, R., Johnson, M. L., Ashcraft, R., Van Hoesen, D., Sellers, M., Kelton, K. F. |
| Rok vydání: |
2017 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| DOI: |
10.1063/1.4981011 |
| Popis: |
The thermal expansion coefficients, structure factors, and viscosities of twenty-five equilibrium and supercooled metallic liquids have been measured using an electrostatic levitation (ESL) facility. The structure factor was measured at the Advanced Photon Source, Argonne, using the ESL. A clear connection between liquid fragility and structural and volumetric changes at high temperatures is established; the observed changes are larger for the more fragile liquids. It is also demonstrated that the fragility of metallic liquids is determined to a large extent by the cohesive energy and is, therefore, predictable. These results are expected to provide useful guidance in the future design of metallic glasses. |
| Databáze: |
arXiv |
| Externí odkaz: |
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