Cited by 89Additive Manufacturing and 3D Printing TechnologiesInnovations in Concrete and Construction MaterialsAdditive Manufacturing Materials and Processes

Additive manufacturing of lunar regolith structures

Open access
Altun, Altan Alpay, Ertl, Florian, Marechal, Maude, Makaya, Advenit, Sgambati, Antonella, Schwentenwein, Martin·2021·Open Ceramics

Abstract

The key to any presence in space being sustainable is the ability to manufacture the necessary structures and spares in situ and on-demand, in order to avoid the cost, volume, and up-mass constraints that would prohibit a successful launch with everything needed for long-duration and long-distance missions from Earth. In terms of meeting the demand for parts with highly complex geometries and high accuracy, ceramic stereolithography is a revolutionary manufacturing technology, with oxide ceramics being widely studied due to their low levels of light absorption and scattering. This article investigates the feasibility of producing parts from lunar regolith simulant using a vat polymerization (VP) technique called lithography-based ceramic manufacturing (LCM). The conducted analyses include determining the rheological behavior of the suspension and the thermogravimetric characterization of printed green parts, as well as examining the mechanical, structural and microstructural properties through compression tests, computed tomography and SEM of sintered regolith samples.

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Crossref · 10.1016/j.oceram.2021.100058

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  • Higher magnification SEM reveals heterogeneity in particle size and shape, along with microporosity in as-sintered EAC-1A samples.

    “While lower magnification shows a mostly homogeneous structure with some variation at layer boundaries, higher magnification reveals heterogeneity in particle size and shape, along with microporosity.”
  • Altun et al. reported average compressive strength and elasticity modulus of 5.4 MPa and 403.3 MPa for EAC-1A Lunar regolith simulant components using LCM.

    “The resulting average compressive strength and elasticity modulus were recorded as 5.4 MPa and 403.3 MPa, respectively.”
  • Relative density of EAC-1A samples reduced from 67.9% to 55.9% after debinding and sintering.

    “Relative density analysis conducted through the Archimedean principle and water displacement indicated a reduction from 67.9% to 55.9% after the debinding and sintering processes.”
  • Sieving, either alone or in combination with milling, is also highly effective.

    “Sieving, either alone or in combination with milling, is also highly effective [283,373-376].”

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Authors
Altun, A. A., Ertl, F., Marechal, M., Makaya, A., Sgambati, A., & Schwentenwein, M.
Affiliations
  • European Space Research and Technology Centre (NL)
  • OHB (Germany) (DE)
Corresponding author
Altun, Altan Alpay
Venue
Open Ceramics
Publisher
Elsevier BV
Published
2021-03
Volume
5
Pages
100058
ISSN
2666-5395 (ISSN-L)
OpenAlex
W3121471757
Cited by
88
References
57
Citations by year
2026: 7 · 2025: 25 · 2024: 18 · 2023: 10 · 2022: 25 · 2021: 3
FWCI
4.63
Type
journal article
Language
en
Open access
Locations
  • Open Ceramics (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • European Space Agency (4000122380/17/NL/LvH/ab)
  • Technische Universität Wien
Topics
  • Physical Sciences › Engineering › Automotive Engineering › Additive Manufacturing and 3D Printing Technologies
  • Physical Sciences › Engineering › Building and Construction › Innovations in Concrete and Construction Materials
  • Physical Sciences › Engineering › Mechanical Engineering › Additive Manufacturing Materials and Processes
Keywords
lunar regolith simulant, additive manufacturing, ceramic stereolithography, lithography-based ceramic manufacturing, vat polymerization, in-situ resource utilization, oxide ceramics, suspension rheology, sintered microstructure, mechanical properties

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