Abstract
Since diffusion and convection in melts play a significant role in most processes involving fluids, there has been an increasing interest to understand the underlying mechanisms and to obtain accurate data on these properties. Unfortunately all terrestrial experiments are degraded by gravity-driven flow, which makes it virtually impossible to carry out precise measurements.
Microgravity environment provides the means to drastically reduce convective contributions and thus to precisely determine diffusion- controlled mass transport properties. Consequently, theoretical models can be tested and the underlying mechanisms can be identified unambiguously. This may lead to new theoretical concepts on diffusion and transport in fluids and consequently to a better understanding of solidification and crystallization processes.
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© 1987 European Space Agency, Paris Cedex, France
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Malmejac, Y., Frohberg, G. (1987). Mass Transport by Diffusion. In: Walter, H.U. (eds) Fluid Sciences and Materials Science in Space. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-46613-7_5
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DOI: https://doi.org/10.1007/978-3-642-46613-7_5
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