However, fast gelation produces stresses in the material that progressively relax through a cascade of restructuring events akin to 'micro-quakes.' The aftershocks eventually induce larger restructuring events involving the entire gel. This is similar to what happens in the tempering of glass. The Light Microscopy Module (LMM) enables novel research of microscopic phenomena in microgravity, with the capability of remotely acquiring and downloading digital images and videos across many levels of magnification in 3D using confocal microscopy. When the suspension is heated to above approximately 40☌, the particles rapidly stick to each other, forming a rigid network that can sustain its own weight-a process called gelation. ![]() While at room temperature, the colloid behaves as a liquid. These soft materials are common in daily life examples are whipped cream, jelly, fabric softener, milk and muddy water.ĪCE-T-10 studies colloids in which the attraction between nanoparticles gets stronger with increased temperature. This experiment could also benefit the future exploration of the Moon, Mars and beyond by providing insight into material failure.Ĭolloids are materials where nanoparticles or small droplets of one material are dispersed in a fluid. ![]() ![]() Understanding this stress relaxation in disordered solids may provide hints about seismic events on earth. A new International Space Station investigation, Advanced Colloids Experiment-Temperature-10 (ACE-T-10), is using temperature changes to better understand how colloids-or 'disordered solids' - age or fail.
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