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Influencing factors for the preparation of Fe0 in lunar soil simulant using high-temperature carbothermic reduction
Yanhua Peng; Hong Tang; Bing Mo; Xiaojia Zeng; Bingkui Miao
2022
Source PublicationAdvances in Space Research
Volume70Issue:10Pages:3220-3230
Abstract

Metallic iron (Fe0) within lunar soil grains can affect their visual and near-infrared spectra, adhesion, biological toxicity, and electro-static migration characteristics. The Fe0 particle therefore is an important component of lunar soil. This study devised a high -temperature carbothermic reduction method for preparing Fe0 via graphite reduction of Chinese Lunar Regolith Simulant (CLRS-2) in an argon atmosphere, which is similar to the Fe0 in the agglutinitic glass of lunar samples. The X-ray diffraction and electron micro-scopy data show that the mixture of lunar soil simulants and graphite heated at high temperature rapidly quenched to form a glassy phase with dispersed Fe0 particles, the microstructure of which is consistent with the a-Fe (bcc) in lunar soil. This paper also discusses the main influencing factors for preparing Fe0, such as the ratio of raw materials, heating temperature, and holding time. The optimal experimental conditions are a graphite-to-CLRS-2 mass ratio of 1.0: 27.0 (Fe/C = 2.0: 2.6), reduction temperature of-1600 degrees C, and holding time of-4 h, which produce single-phase a-Fe with an average particle size of-180 +/- 10 nm and no residual impurities (e.g., graphite). (c) 2022 COSPAR. Published by Elsevier B.V. All rights reserved.

KeywordLunar Soil Simulant Metallic Iron Carbothermic Reduction Influencing Factors
DOI10.1016/j.asr.2022.07.074
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Indexed BySCI
Language英语
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/13640
Collection月球与行星科学研究中心
天体地球化学研究组
Affiliation1.Guilin Univ Technol, Inst Meteorites & Planetary Mat Res, Guilin 541006, Peoples R China
2.Chinese Acad Sci, Inst Geochem, Ctr Lunar & Planetary Sci, Guiyang 550081, Peoples R China
3.Nanning Coll Technol, Guilin 541006, Peoples R China
Recommended Citation
GB/T 7714
Yanhua Peng,Hong Tang,Bing Mo,et al. Influencing factors for the preparation of Fe0 in lunar soil simulant using high-temperature carbothermic reduction[J]. Advances in Space Research,2022,70(10):3220-3230.
APA Yanhua Peng,Hong Tang,Bing Mo,Xiaojia Zeng,&Bingkui Miao.(2022).Influencing factors for the preparation of Fe0 in lunar soil simulant using high-temperature carbothermic reduction.Advances in Space Research,70(10),3220-3230.
MLA Yanhua Peng,et al."Influencing factors for the preparation of Fe0 in lunar soil simulant using high-temperature carbothermic reduction".Advances in Space Research 70.10(2022):3220-3230.
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