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Tomography imaging of glass melting

by Emmanuelle Gouillart - published on , updated on

During the reactive melting of glass raw materials (sand, sodium carbonate and calcium carbonate), the geometry of the different reagents have a profound influence on the kinetics and relative importance of several chemical reactions. In-situ high-temperature tomography provides the possibility to: a) quantitatively describe the distribution of grains and the nature of solid-solid contacts in the initial pile; b) identify where and at what temperature reactions between grains occur; c) quantify the extent to which these reactions occur.

The movie below shows first 3-D views of the different granular species. Then a vertical cut is swept through the granular packing at room temperature. Finally, we observe the evolution of a fixed vertical cut as temperature increases.

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EDDAM ANR project

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