Lucideon has completed a European Space Agency funded feasibility project exploring the use of Flash Sintering to process lunar regolith simulant into structural materials for future in-situ resource utilization (ISRU) applications
As plans for sustained activity on the Moon continue to develop, the ability to use materials already present on the lunar surface is becoming increasingly important. Transporting construction materials from Earth would be costly and constrained by payload limits, making local processing routes a key area of research.
Lunar regolith, the loose material found on the Moon’s surface, has been widely studied for potential use in construction and oxygen generation. For construction applications, regolith can be pressed and sintered to form bricks or pellets, but conventional sintering typically requires high temperatures, long processing times, and significant energy input.
Lucideon's Flash Sintering technology offers a potential alternative. The process applies an electric field to a ceramic body, generating heat directly within the material and enabling densification at lower furnace temperatures and shorter processing times than conventional methods.
The project focused on EAC-1A, a lunar regolith simulant developed to support research into future space resource technologies. Lucideon produced compact pellets from the simulant and assessed their electrical properties to establish suitable starting parameters for FS trials.
Initial trials showed that the material was prone to electrical flashover and localized current. To address this, Lucideon developed an optimized pulsed approach, using successive on and off periods to improve thermal homogenization during processing.
Using the optimized pulse train parameters, Lucideon achieved comparable densification to conventionally sintered samples while using a lower furnace temperature and a shorter processing time. Pulsed FS for five minutes at 850°C (1562°F) achieved results comparable with conventional sintering at 1080°C (1976°F) for one hour.
Project calculations indicate potential energy savings of up to 50%, alongside a 35-40% reduction in processing time compared with conventional sintering. These improvements could support more efficient lunar construction approaches and contribute to reducing the launch payload needed for future missions.
The feasibility study was completed in air, with future work expected to explore processing in environments more representative of the lunar surface. Moving to a vacuum or non-oxidizing atmosphere could allow higher voltages, larger samples, lower temperatures, and faster processing.
Further research opportunities are present, including improving powder processing and material homogeneity, scaling sample dimensions, and generating larger geometries suitable for mechanical testing.
The work demonstrates the potential of FS as an enabling technology for ISRU and future lunar infrastructure, supporting the development of lower-energy processing routes for ceramic materials in challenging environments.
» For more information about Lucideon's Flash Sintering capabilities, visit our Flash Sintering Technology page.
June 2026