Multi-step thermal design of microwave vacuum heating to basaltic regolith simulant towards lunar base construction.

ABSTRACT: Humanned exploration and extended stay on the Moon are the hottest challenges today. We report highly robust materials by microwave heating under high-vacuum conditions (10^- 3 Pa) from a basaltic regolith simulant (FJS-1) to ensure the feasibility of lunar infrastructure construction. The violent degassing dynamics were revealed by monitoring vacuum pressure during heating and analyzing the compounds evolved from basaltic silicate compounds: thermal pyrolysis of silicate compounds became more pronounced above 1000 ^oC, leading to a catastrophic deformation accompanied by forming countless pores of several hundred µm sizes. The preferential formation of the magnetite phase in vacuum heating dominantly caused the radical change in microwave absorption capacity compared w

SUBMITTER: Kato K 

PROVIDER: S-EPMC11568225 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature