Metastable phase selection from undercooled Zr77Rh23 liquid alloys
| Autor: | M. L. Johnson, K. F. Kelton, A. J. Vogt, Patrick C. Gibbons |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Amorphous metal Mechanical Engineering Metals and Alloys Thermodynamics 02 engineering and technology Crystal structure Neutron scattering 021001 nanoscience & nanotechnology 01 natural sciences law.invention Crystallography Devitrification Mechanics of Materials law Phase (matter) Metastability 0103 physical sciences Materials Chemistry Crystallization 0210 nano-technology Supercooling |
| Zdroj: | Journal of Alloys and Compounds. 725:1217-1222 |
| ISSN: | 0925-8388 |
| Popis: | From measurements of X-ray and neutron scattering of electrostatically levitated Zr 77 Rh 23 liquids, a variety of metastable crystallization behavior was observed. The metastable phase selection in deeply undercooled liquid droplets is characterized and their crystallization pathways discussed. A metastable phase previously identified as a primary devitrification product from the metallic glass formed when undercooling was maximized to near the hypercooling limit. The direct formation of α–Zr and the equilibrium C16 phase as well as a newly discovered Zr 5 Rh 3 (Mg 5 Si 3 -type) phase are also reported. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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