Quantitative determination of the physical parameters relevant to the thin-film directional solidification of the CBr4-C2Cl6 eutectic alloy
| Autor: | R. Mellet, C. Guthmann, Gabriel Faivre, J. Mergy |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Characteristic length
Chemistry Diffusion Alloy Mineralogy Thermodynamics engineering.material Condensed Matter Physics Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Inorganic Chemistry Condensed Matter::Materials Science Materials Chemistry engineering Lamellar structure Thin film Directional solidification Eutectic system Phase diagram |
| Zdroj: | Journal of Crystal Growth. 134:353-368 |
| ISSN: | 0022-0248 |
| DOI: | 10.1016/0022-0248(93)90146-n |
| Popis: | A relatively large number of physical parameters are involved in the formation of lamellar eutectic patterns in thin-film directional solidification: parameters pertaining to the phase diagram of the alloy, diffusion coefficient in the liquid, solid-liquid and solid-solid surface energies. We present a quantitative determination of all these quantities for the CBr 4 -C 2 Cl 6 eutectic alloy, employing only the thin-film directional-solidification setup. By a study of the experimental steady-state shapes of the growth front, we obtain, in particular, the value of the characteristic length known as the Jackson-Hunt minimum-undercooling wavelength. |
| Databáze: | OpenAIRE |
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