Super strong material produced with Martian rock and titanium alloy
were strong, the 100% regolith parts proved brittle and cracked easily. Still, the researchers believe that even high-Martian content materials would be useful in making coatings to protect equipment from rust or radiation damage.
Bringing materials into space can be extremely expensive. For instance, the authors noted it costs about $54,000 for the NASA space shuttle to put just one kilogram of payload into earth’s orbit. For this study, the WSU researcher together with graduate students Ali Afrouzian and Kellen Traxel used a powder-based 3D printer to mix the simulated Martian rock dust with a titanium alloy, a metal often used in space exploration for its strength and heat-resistant properties.
The ceramic material made from 100% Martian rock dust cracked as it cooled, but it could still make good coatings for radiation shields as cracks do not matter in that context. On the other hand, just a little Martian dust, the mixture with 5% regolith, not only did not crack or bubble but also exhibited better properties than the titanium alloy alone, which meant it could be used to make lighter-weight pieces that could still bear heavy loads.
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