Ignition of Aluminum Powders Under Different Experimental Conditions

Trunov, Mikhaylo; Schoenitz, Mirko; Dreizin, Edward L.

doi:10.1002/prep.200400083

Cited by 215 publications

(83 citation statements)

References 36 publications

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“…It is reasonable to expect that Π m is related to the oxide layer thickness δ m . Here, an expression for the growth of the oxide layer is used, which is similar to the Arrhenius-type relation provided in [42]; here, oxidation occurs until the oxide thickness is equal to r m :…”

Section: Reactive Aluminummentioning

confidence: 99%

A multi-phase theory for the detonation of granular explosives containing an arbitrary number of solid components

Crochet

Gonthier

2015

International Journal of Multiphase Flow

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Section: Reactive Aluminummentioning

confidence: 99%

A multi-phase theory for the detonation of granular explosives containing an arbitrary number of solid components

Crochet

Gonthier

2015

International Journal of Multiphase Flow

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“…The ignition and combustion of micron-sized Al particles are relatively well understood [120][121][122]. Micronsized Al particles have a higher ignition temperature (~ 2350 K) [120] and a tendency to agglomerate in solid rocket motor (SRM) environments [123].…”

Section: Ii27 Multi-scale Modeling Of Nano-aluminum Particle Ignitimentioning

confidence: 99%

Nano Engineered Energetic Materials (NEEM)

Dlott¹,

Eden²,

Girolami³

et al. 2011

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The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. The ARO Nano Engineered Energetic Materials (NEEM) MURI program has been exploring new methodologies for developing energetic material formulations with control of all constituents over a wide range of length scales from 1 nm to 1 mm and larger and employing the latest techniques in molecular self-assembly and supramolecular chemistry for synthesizing and assembling NEEMs. The synthetic efforts have been guided by theoretical calculations and dynamic performance testing methodologies that also operate on all length scales. This final report ABSTRACTThe ARO Nano Engineered Energetic Materials (NEEM) MURI program has been exploring new methodologies for developing energetic material formulations with control of all constituents over a wide range of length scales from 1 nm to 1 mm and larger and employing the latest techniques in molecular self-assembly and supramolecular chemistry for synthesizing and assembling NEEMs. The synthetic efforts have been guided by theoretical calculations and dynamic performance testing methodologies that also operate on all length scales. This final report provides a summary of the accomplishments. In particular, new methods to generate metal nanoclusters were developed that are stabilized against environmental degradation while preserving their high energy content. Rapid expansion supercritical solution processes were developed and applied to synthesize nanosized particulate oxidizers and energetic oxidizer shell/fuel core composites. Surface science and experimental chemistry methods were applied to study the structures and energy releasing reaction pathways of NEEMs. Unique diagnostic capabilities were developed and applied to study the fundamental mechanisms that underlie NEEM dynamic performance. Combustion mechanisms of various NEEMs, including nanothermites and nanoparticulate fuel/liquid oxidizer systems, were experimentally analyzed. The reactive and thermal characteristics of NEEMs were studied using large (billion atoms) multiscale simulations that couple quantum-mechanical calculations to molecular dynamics calculations. In particular, the stability, structure and energetics of metallic nanoparticles with a special focus on the relationships between particle size, shape and excess surface free energy were studied. A unified theory of ignition and combustion of aluminum particles for a wide range of sizes, from nano to meso scales was established. . 12, 777-787 (2010 (b) Papers published in non-peer-reviewed journals or in conference proceedings (N/A for none)18.00 Number of Papers published in peer-reviewed journals:Number of Papers published in non peer-reviewed journals:1. USC group, "Multibillion-atom simulations of nano-mechano-chemistry on petaflops computers," First

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“…However, few fundamental studies were conducted on the experimental reaction process of nAl in pure water, and there is rarely accepted theory concerning the specific process and mechanism of Al/H 2 O reaction [17,22,23], even less for the nAl/H 2 O reaction. As is known, nAl/H 2 O reaction is considered as the fundamental source of thermal energy in propulsion system, and the investigation of the reaction process will provide valuable information for a better understanding of nAl combustion with water and energy transfer for propulsion system.…”

Section: Introductionmentioning

confidence: 99%