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MOMO EXPERIMENT ASSEMBLY [1 record]

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Record 1 2003-10-09

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
CONT

The ESA facility MOMO MOrphological transition in transparent MOdel materials is designed to study directional solidification of optically transparent melts. It investigates the effect of gravity on the formation of growth morphologies.

CONT

The key element of the MOMO experiment assembly is a Bridgman furnace for low temperatures (< 100°C). The furnace generates a temperature gradient over a cylindrical glass ampoule containing the sample. The sample material for the first two flights was a succinonitrile (SCN) based compound, which has solidifying structures similar to those of a metal alloy. The furnace is accommodated on a linear drive, which can be moved over the sample ampoule for directional solidification. An endoscope from the liquid side of the sample provides optical observation of the solid-liquid interface. Recorded images are analysed after the experiment to determine parameters of the solidifying morphological structure.

OBS

ESA facility MOMO: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
CONT

[...] l'ESA [European Space Agency] emporte le Biorack et l'expérience MOMO [MOrphological transition in transparent MOdel materials] à bord du Space Hab.

OBS

bac expérimental MOMO : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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