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An experimental method for the in-situ observation of eutectic growth patterns in bulk samples of transparent alloys

Sabine Bottin-Rousseau·Mikael Perrut·Christian Picard·Silvère Akamatsu·Gabriel Faivre
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Abstract

We present an experimental method for the in-situ observation of directional-solidification fronts in bulk samples of transparent eutectic alloys. The growth front is observed obliquely in dark field through the liquid and a glass wall of the container with a long-distance microscope. We show that a focused image of the whole growth front can be obtained at a certain tilt angle of the microscope. At this tilt angle, eutectic fibers of about 3.5\mic in diameter can be clearly seen over the whole growth front in 400-\mic thick samples.

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Sabine Bottin-Rousseau, Mikael Perrut, Christian Picard, Silvère Akamatsu, Gabriel Faivre. 2007-01-12. An experimental method for the in-situ observation of eutectic growth patterns in bulk samples of transparent alloys. https://doi.org/10.1016/j.jcrysgro.2007.05.035

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