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Record W4206257359 · doi:10.1089/space.2021.0047

Metalysis Fray Farthing Chen Process As a Strategic Lunar <i>In Situ</i> Resource Utilization Technology

2022· article· en· W4206257359 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueNew Space · 2022
Typearticle
Languageen
FieldEngineering
TopicAdditive Manufacturing and 3D Printing Technologies
Canadian institutionsNational Research Council CanadaCarleton University
Fundersnot available
KeywordsCathodeAnodeMaterials scienceOxideMolten saltProcess engineeringNanotechnologyMetallurgyElectrodeEngineeringChemistryElectrical engineering

Abstract

fetched live from OpenAlex

Crucial to permanent occupation of the Moon will be the exploitation of local resources to build a lunar infrastructure. We examine 2 processes—the Metalysis Fray Farthing Chen (FFC) process and metal three-dimensional (3D) printing—as the backbone of a robust and sustainable industrial ecology on the Moon to exploit its raw material resources with husbandry. The Metalysis FFC process is an electrochemical technique that can extract near pure metals from their oxide and silicate forms through cathodic reduction. An anode (graphite) and cathode (metal oxide to be reduced) reside in a bath of molten salt CaCl 2 at 900–1,100°C. A voltage is applied and the metal oxide releases oxygen ions into the molten salt, and oxygen is released at the cathode and transferred to the anode as CO or CO 2 gas if the anode is graphite. At the cathode, the metal oxide is reduced into metal plus oxygen through a series of intermediate steps. We outline how the Metalysis FFC process can be leveraged through a handful of chemical preprocessing methods to exploit its versatility. We have demonstrated some preliminary experiments in extracting Ti metal powder from rutile through the Metalysis FFC process, which was subsequently 3D printed into Ti test structures using selective laser sintering. These 2 methods—Metalysis FFC and metal 3D printing—offer unprecedented capabilities for a lunar infrastructure manufacturing chain. In particular, we take note of their high-energy efficiency that will be crucial to lunar in situ resource utilization.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.784
Threshold uncertainty score0.768

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.022
GPT teacher head0.243
Teacher spread0.222 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it