Electromagnetic levitation containerless processing of metallic materials in microgravity: rapid solidification

Matson, Douglas M.; Battezzati, Livio; Galenko, Peter; Gandin, Charles‐André; Gangopadhyay, A. K.; Henein, H.; Kelton, K. F.; Kolbe, Matthias; Valloton, J.; Vogel, Sven C.; Volkmann, T.

doi:10.1038/s41526-023-00310-2

Cited by 9 publications

(3 citation statements)

References 75 publications

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“…Typically, the purer the metal fluid, the greater the subcooling. There are several methods for circumventing impurities in metal fluid, [53] such as dispersion and emulsification. Increasing the cooling rate also helps increase the subcooling, ensuring that the molten metal remains liquid over a wide temperature range without freezing.…”

Section: Performance Enhancement Of Liquid Metal Filled With Micro/na...mentioning

confidence: 99%

Liquid Metal Combinatorics toward Materials Discovery

Wang

Bai

et al. 2023

Advanced Materials

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Liquid metals and their derivatives provide several opportunities for fundamental and practical exploration worldwide. However, the increasing number of studies and shortage of desirable materials to fulfill different needs also pose serious challenges. Herein, to address this issue, we systematically presented a generalized theoretical frame that was termed as “Liquid Metal Combinatorics” (LMC), and summarized promising candidate technical routes toward new generation material discovery. The major categories of LMC were defined, and eight representative methods for manufacturing advanced materials were outlined. It has been illustrated that abundant targeted materials can be efficiently designed and fabricated via LMC through deep physical combinations, chemical reactions, or both among the main bodies of liquid metals, surface chemicals, precipitated ions, and other materials. This represents a large class of powerful, reliable, and modular methods for innovating general materials. The achieved combinatorial materials not only maintained the typical characteristics of liquid metals but also displayed distinct tenability. Furthermore, the fabrication strategies, wide extensibility, and pivotal applications of LMC are classified. Finally, by interpreting the developmental trends in the area, a perspective on the LMC was provided, which warrants its promising future for society.This article is protected by copyright. All rights reserved

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Section: Performance Enhancement Of Liquid Metal Filled With Micro/na...mentioning

confidence: 99%

Liquid Metal Combinatorics toward Materials Discovery

Wang

Bai

et al. 2023

Advanced Materials

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“…Another significant problem is the sample image analysis algorithm [22][23][24]. Matson and Torovopa et al studied the temperature dependence of density with changes in crystallisation on onboard the International Space Station, which can obtain stable levitated melts [25,26]. Another technique to obtain a stable sample image is using the high-frequency-induced melt-flux method.…”

Section: Introductionmentioning

confidence: 99%

Density Testing Method for Undercooling Solidification of High-Temperature Metal Melts

Niu,

Xu,

Yao

et al. 2023

Crystals

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There are numerous methods used for measuring the coefficient of thermal expansion of alloys and density change at low temperatures, but it is difficult to accurately measure the volume and density of high-temperature melts, particularly during the process of rapid volume change during material phase transformation. This article proposes a method for measuring and analysing the volume and density changes in high-temperature alloy melts using high-speed photography and computer MATLAB program image analysis technology, which includes the ordinary image threshold segmentation method, the elliptical fitting method, and the local dynamic threshold segmentation method. The ordinary image threshold segmentation method is best suited to samples with clear boundaries; the elliptical fitting method is the simplest and can be used to analyse samples with unclear boundaries; and the local dynamic threshold segmentation method is the most accurate and best suited to samples with unclear boundaries. These techniques will aid in understanding the variations in the volume and density of high-temperature melt samples during the phase transition process.

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“…Eutectic alloys, especially off-eutectic (hypoeutectic and hypereutectic) alloys, are widely studied in experiments and used in industry [1]. The study of eutectic and offeutectic alloys is important to compare alloy properties obtained on the ground [2] and under microgravity conditions [3]. Usually, the microstructure of off-eutectic alloys is represented by lamellar colonies.…”

Section: Introductionmentioning

confidence: 99%

Off-Eutectic Growth Model for Solidifying Alloy from an Undercooled State

Xu,

Galenko

2023

Crystals

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Classical eutectic growth models are based on the use of eutectic composition. These models neglect the effect of primary phase formation, and their direct use in the rapid solidification process of off-eutectic (hypoeutectic and hypereutectic) alloys is absent. Combining the effect of the primary phase in the eutectic transformation and an off-eutectic composition, the solidification growth model is derived in the present work. The effect of the model and material parameters on solidification kinetics is discussed in comparison with experimental data. Computational results on the off-eutectic growth model show that the model agrees well with experimental data on the solidification kinetics of Ni-B and Ti-Si alloys.

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Electromagnetic levitation containerless processing of metallic materials in microgravity: rapid solidification

Cited by 9 publications

References 75 publications

Liquid Metal Combinatorics toward Materials Discovery

Liquid Metal Combinatorics toward Materials Discovery

Density Testing Method for Undercooling Solidification of High-Temperature Metal Melts

Off-Eutectic Growth Model for Solidifying Alloy from an Undercooled State

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