Investigation on Wetting and Melting Behavior of Lunar Regolith Simulant for Additive Manufacturing Application

Fateri, Miranda; Pitikaris, Sebastian; Sperl, Matthias

doi:10.1007/s12217-019-9674-5

Cited by 27 publications

(10 citation statements)

References 19 publications

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“…observed a high wettability of lunar regolith simulant during the melting process atop of a pre-sintered regolith substrate [41]. The stable formation of the molten pool in LPBF is linked to the physical and chemical properties of the underlying base plate.…”

Section: Influence Of the Base Plate Typementioning

confidence: 94%

Determining the feasible conditions for processing lunar regolith simulant via laser powder bed fusion

Caprio

Demir

Previtali

et al. 2020

Additive Manufacturing

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Section: Influence Of the Base Plate Typementioning

confidence: 94%

Determining the feasible conditions for processing lunar regolith simulant via laser powder bed fusion

Caprio

Demir

Previtali

et al. 2020

Additive Manufacturing

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“…Via optimisation and tailoring of the process temperature to the actual regolith glass transition temperature (e.g. 620 °C for JSC-2A [62]) and composition this potential can be explored in the future. For this experiment run the process efficiency was of secondary importance and sample quality had priority.…”

Section: Hot Processingmentioning

confidence: 99%

In-situ resource utilisation manufacturing of optically transparent glass from lunar regolith simulant

Schleppi

Bromiley²,

Odling³

et al. 2021

J Mater Sci

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International space agencies are aiming to establish permanent outposts on the lunar surface. For that purpose, new technologies and equipment are being developed which will enable and augment these mission goals. To increase the duration of a long-term planetary mission and to expand mission capabilities, the ability to manufacture transparent glass in-situ could be an important enabler on the lunar surface. Results presented in this work show that it is feasible to use different lunar regolith simulants to manufacture optically transparent glass by magnetically beneficiating regolith prior to processing. Beneficiated regolith simulant was melted, cast into glass nuggets which were then ground, lapped and polished into glass slides of 1mm thickness. The glass slides' surface roughness and geometry were measured, prior to optical analysis, which showed an average transmission of about 80 % of light in the wavelength range from 250 to 1250 nm. A comparable reference glass sample performed only about 9 % (absolute) better on average. From these results it seems viable to manufacture transparent glass from actual lunar regolith on the lunar surface as well, however, differences in regolith simulant and actual regolith still need to be fully explored -Regolith may be available on the lunar surface in unlimited quantities and therefore open up new strategic possibilities.

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“…For example, the Moon has reduced gravity, which is about a sixth of the terrestrial gravity. This leads to difficulty in forming compacts and distortions are likely to happen during the sintering process [ 26 , 27 , 28 ]. At high temperatures and in reducing atmospheres, rapid evaporation of selected elements and/or compounds will lead to the formation of macropores [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ceramic Material Processing Towards Future Space Habitat: Electric Current-Assisted Sintering of Lunar Regolith Simulant

et al. 2020

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In situ utilization of available resources in space is necessary for future space habitation. However, direct sintering of the lunar regolith on the Moon as structural and functional components is considered to be challenging due to the sintering conditions. To address this issue, we demonstrate the use of electric current-assisted sintering (ECAS) as a single-step method of compacting and densifying lunar regolith simulant JSC-1A. The sintering temperature and pressure required to achieve a relative density of 97% and microhardness of 6 GPa are 700 °C and 50 MPa, which are significantly lower than for the conventional sintering technique. The sintered samples also demonstrated ferroelectric and ferromagnetic behavior at room temperature. This study presents the feasibility of using ECAS to sinter lunar regolith for future space resource utilization and habitation.

show abstract

Investigation on Wetting and Melting Behavior of Lunar Regolith Simulant for Additive Manufacturing Application

Cited by 27 publications

References 19 publications

Determining the feasible conditions for processing lunar regolith simulant via laser powder bed fusion

Determining the feasible conditions for processing lunar regolith simulant via laser powder bed fusion

In-situ resource utilisation manufacturing of optically transparent glass from lunar regolith simulant

Ceramic Material Processing Towards Future Space Habitat: Electric Current-Assisted Sintering of Lunar Regolith Simulant

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