Low‐gravity combustion synthesis: Theoretical analysis of experimental evidences

Locci, Antonio Mario; Licheri, Roberta; Orrù, Roberto; Cincotti, Alberto; Cao, Giacomo; Wilde, Jimmy De; Lemoisson, Fabienne; Froyen, Ludo; Beloki, I.A; Sytschev, A. E.; Рогачев, А. С.; Jarvis, D.J.

doi:10.1002/aic.11006

Cited by 16 publications

(7 citation statements)

References 40 publications

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“…Blending these materials together may lead to the formation of smart implants. Locci et al [64] have experimented with producing TiB 2 using Ti, B, and Al as the initial powders. The reaction was ignited under a terrestrial gravity situation.…”

Section: Microgravity Csmentioning

confidence: 99%

Combustion Synthesis: An Update

Bhaduri

2012

Ceramics and Composites Processing Methods

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Section: Microgravity Csmentioning

confidence: 99%

Combustion Synthesis: An Update

Bhaduri

2012

Ceramics and Composites Processing Methods

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“…A thorough theoretical general analysis of potential effects of gravity on combustion synthesis has been performed (Locci et al, 2006) with the goal of elucidating the above experimental results. The effect of gravity on heat and mass transport within the reacting sample across different spatial scales was specifically investigated-as shown schematically in Figure 4.…”

Section: Frontiers In Space Technologiesmentioning

confidence: 99%

“…A comprehensive analysis based on appropriate dimensionless numbers (Locci et al, 2006) indicates that, during SHS the gas phase natural convection has negligible effect on heat loss to the surroundings off the exterior surface of the reacting pellet. Since the rate by which chemical reactions release heat was found to be insensitive to g-level, the finding above suggests that gravity is unlikely to have significant influence on combustion temperature, as is consistent with experimental evidence.…”

Section: Frontiers In Space Technologiesmentioning

confidence: 99%

Recent advances on ISRU technologies and study of microgravity impact on blood cells for deep space exploration

Cao

Concas

Orrù

et al. 2023

Front. Space Technol.

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The long-term solution to problems like overcrowding, fossil fuel depletion, climate change, and decreasing natural resource availability could be overcome through space colonization and human presence in space, as well as the exploitation of extraterrestrial natural resources. In keeping with this, the objective of this work is to analyze current advancements in technology development for deep space exploration and colonization made by our research team as well as by other organizations with which we are collaborating. First, a method for producing tangible goods suited for industrial or civil installations on the Moon, Mars, or asteroids, using in situ available regolith as the main resource, is discussed. In this regard, a new process based on the occurrence of self-propagating high-temperature synthesis (SHS) reactions was developed for the fabrication of composite ceramics to be used as construction materials. A theoretical analysis of the process using proper dimensionless numbers is also described to offer potential explanations of the key experimental evidences presented in the relevant literature. For instance, it is found that free convection likely plays a crucial role to make SHS front velocity higher under terrestrial conditions when the reaction ignition is carried out from the bottom side, instead of the top side, of reacting mixture. Next, a method that uses the atmosphere and regolith of Mars as raw feedstock to produce in situ useful material such as oxygen, water, food, fuels and fertilizers, is considered. In the next section, the potential for cultivating Spirulina platensis to provide nourishment for the Martian crew is examined. The possible use of sintered lunar regolith simulants such as JSC-1A is also considered for potential thermal energy storage and solar energy harvesting applications, within the context of resource exploitation. Sintered regolith simulant exhibited, compared to the native material in powder form, superior solar absorptance, which makes it suitable for sunlight absorbers in architectures with a cavity-like solar receiver. Finally, a new study is reported which combines biochemical and biophysical approaches in order to compare, under simulated microgravity and under terrestrial conditions, the functioning and structure of red blood cells, over various intervals of time.

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“…Combustion synthesis ( CS ) or self‐propagating high‐temperature synthesis ( SHS ) is an economical, effective, and energy‐saving process for synthesizing industrial materials, especially ceramics. This process uses the heat generated during a strong exothermic reaction in order to sustain the combustion process.…”

Section: Introductionmentioning

confidence: 99%

Combustion synthesis of high‐purity β‐SiAlON fine powders using natural kaolin

Niu

Akiyama

et al. 2012

AIChE Journal

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Significance Single‐phase β‐SiAlON particles with submicron size were prepared via combustion synthesis (CS) using natural kaolin, Si, and Al as raw materials under a nitrogen atmosphere of 1 MPa. Kaolin could not only act as the raw material to provide the source of oxygen, but also act as the diluent to reduce the reaction temperature by eliminating the structural water during reaction process.

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Low‐gravity combustion synthesis: Theoretical analysis of experimental evidences

Cited by 16 publications

References 40 publications

Combustion Synthesis: An Update

Combustion Synthesis: An Update

Recent advances on ISRU technologies and study of microgravity impact on blood cells for deep space exploration

Combustion synthesis of high‐purity β‐SiAlON fine powders using natural kaolin

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