| Abstract Scope |
This study focused on investigating the use of a high-power microwave-induced plasma torch to preprocess lunar regolith for construction and life-support applications. Due to the angular, electrostatically charged nature of lunar dust, regolith is difficult to handle and unsuitable for extrusion or plant growth. To address these challenges, simulated regolith (OPRH2N) was fed through a microwave plasma torch system, resulting in spheroidization and particle size reduction. The processing parameters—airflow, exposure time, and microwave power—were optimized to enhance flowability and uniformity of the treated material. Experimental results demonstrated that microwave treatment modified the physical characteristics of regolith, making it more suitable for additive manufacturing and potential agricultural use. This preprocessing approach enables continuous material treatment, paving the way for in-situ resource utilization (ISRU) in future lunar missions. The technology holds promise for supporting sustainable infrastructure development on the Moon, including 3D-printed habitats and regolith-based growing media. |