Intern Designed Modules for Conducting Potential Microgravity Solidification Experiments Aboard the International Space Station

McElderry, Justin ; Bouchard, Andrew ; Phillips, Tristan

关键词: BREADBOARD MODELS;    CHAMBERS;    DIRECTIONAL SOLIDIFICATION (CRYSTALS);    GROUND TESTS;    INTERNATIONAL SPACE STATION;    LOW TEMPERATURE;    MICROGRAVITY;    MICROSTRUCTURE;    SOLIDIFICATION;    SPACEBORNE EXPERIMENTS;   

RP-ID  :  M19-7644

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来源: NASA Technical Reports Server

【 摘 要 】

MMaJIC (Microgravity Materials Joining Investigation Chamber) is a modular experiment chamber for performing materials science investigations. MMaJIC was initially designed to provide a controlled and sealed test environment to accommodate a wide variety of soldering and brazing experiments. However, its modular cartridge design is well suited to easily conduct any number and variety of science experiments. SoLIDD (Solid Liquid Interface Directional Device) is an apparatus for conducting directional solidification experiments with low melting temperature alloys. It has capability for varying the sample’s temperature gradient and growth velocity thus ensuring microstructural development under controlled conditions. ICED-T (Interface Control Experiment with Directional Translation) is an apparatus that conducts directional solidification experiments of transparent materials such that direct observation/recording of the advancing solid/liquid interface can be made. Currently, it is a functional breadboard that consists of the components mounted to a surface that allows the sample to be placed in an upright position. Orientation of the experiment (solid on the bottom, liquid on top) is important during testing ground samples to maintain stability. Ultimately, the goal of MMaJIC, SoLIDD and ICED-T is to conduct successful ground tests and then be re-configured for eventual use by aboard the ISS.