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Binary Colloidal Alloy Test (BCAT)

Expedition 12 Commander and Science Officer William McArthur photographs BCAT-3 experiment samples.

The Binary Colloidal Alloy Test (BCAT) hardware supports four experiments. The first hardware, BCAT-3, consisted of three separate investigations, Binary Alloy (BCAT-3-BA), Critical Point (BCAT-3-CP) and Surface Crystallization (BCAT-3-SC), which were delivered to the International Space Station (ISS) during expedition 8. The next hardware, BCAT-4, consists of two separate investigations, Critical Point (BCAT-3-4-CP, a continuation of the investigation on BCAT-3) and Polydispersion (BCAT-4-Poly).

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