Combustion characteristics of novel hybrid nanoenergetic formulations

Thiruvengadathan, Rajagopalan; Bezmelnitsyn, Andrey; Apperson, Steven J.; Staley, Clay; Redner, Paul; Balas, Wendy; Nicolich, Steven; Kapoor, Deepak; Gangopadhyay, Keshab; Gangopadhyay, Shubhra

doi:10.1016/j.combustflame.2011.02.004

Cited by 82 publications

(50 citation statements)

References 29 publications

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“…Due to the nanostructure of metal and oxide particles, the contact surface area between the fuel and the oxidizer is increased, leading to the enhancement of the thermite reactivity: the combustion velocity is increased, whereas the ignition delay time is reduced [1,[5][6][7]. Nanothermite combustion velocities can be as high as 2,500 m=s for Bi 2 O 3 =Al or CuO=Al nanothermites [8,9]. They are therefore energetic composites and can be used in many pyrotechnic applications; their higher energy density is a major advantage compared to explosives.…”

Section: Introductionmentioning

confidence: 98%

“…The ignition and the reactivity of nanothermites are dependent on many different parameters, such as the shape and size of the nanoparticles, the presence of local inhomogeneities in the redox mixture, and so on. Most studies focused on the thermal ignition of nanothermites [6,8,9,11,12] and very few studies were conducted on their electrical and mechanical ignition [13,14]. A great difficulty is that the results of these sensitivity tests strongly depend on the experimental parameters.…”

Section: Introductionmentioning

confidence: 98%

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Modulation of the Reactivity of a WO₃/Al Energetic Material with Graphitized Carbon Black as Additive

Bach

Gibot

Vidal

et al. 2015

Journal of Energetic Materials

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Although pyrotechnic performance is fundamental, the strong mechanical and electrostatic intrinsic sensitivities of nanothermite energetic composites represent an obstacle to their development. The addition of a ternary component to the classical binary energetic composite appears to be a promising idea to overcome the problem. A carbon black additive (V3G) was used on a WO 3 =Al nanothermite. The effect of the pristine and modified carbon particles on the mechanical and electrical sensitivities of the composites was measured together with the pyrotechnic properties. The results show a complete desensitization to friction with a ball-milled carbon when the combustion velocity is slightly reduced.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Modulation of the Reactivity of a WO₃/Al Energetic Material with Graphitized Carbon Black as Additive

Bach

Gibot

Vidal

et al. 2015

Journal of Energetic Materials

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show abstract

“…Hybrid compositions are made up of a nanothermite at which an energetic gas generating agent is added. These detonating materials represent an overriding interest, not only from an academic point of view, but also on a practical standpoint for replacing primary explosives [45,87]. The nanostructured thermites and explosives (NSTEX) are prepared by dry mixing of a nanothermite with high explosives in sub-micrometer-or nanopowders (e. g. RDX, HMX, PETN, CL-20).…”

Section: Hybrid Compositionsmentioning

confidence: 99%

Nanothermites: A short Review. Factsheet for Experimenters, Present and Future Challenges

Comet

Martin

Schnell

et al. 2018

Propellants Explo Pyrotec

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Nanothermites are the most important family of energetic materials in contemporary pyrotechnics. This article traces the main research which was carried out in this still recent domain and the challenges that remain to be overcome. The academic effort of past two decades has brought nanothermites from the status of laboratory curiosities to the one of pre‐industrial materials. Different aspects of nanothermites are discussed in order to provide valuable information to scientists experimenting in this domain. Experimental details on the preparation and the disposal of nanothermites are reported. The current research on nanothermites deals with: (i) the development of new aluminothermic mixtures; (ii) the preparation of hybrid compositions by combining nanothermites with explosive nanopowders and (iii) the study of reactive properties. From an academic standpoint, the future challenges are to find new compositions and effects. From a practical standpoint, the effort must focus on the integration of nanothermites and their derivatives in pyrotechnic systems. Toxicological concerns are expected to become increasingly important over the next decade.

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“…However, the hybrid compositions made of a nanothermite and a high explosive could probably compete with LA. Thiruvengadathan et al [79] have prepared such compositions by mixing a CuO/Al nanothermite with different high explosives, such as RDX, CL-20 (hexanitrohexaazaisowurtzitane), or ammonium nitrate. Qiao et al [80] have coated RDX micron-sized particles by a Fe 2 O 3 /Al nanothermite.…”

Section: On Performance Of Rapidly Burning Nanothermitesmentioning

confidence: 99%

Comparison of Performance of Fast‐Reacting Nanothermites and Primary Explosives

Khasainov

Comet

Veyssiere

et al. 2017

Propellants Explo Pyrotec

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ionel Borne 724 Solid-Liquid Adhesion Energies of Composite Propellant Components Determinedb yS olution Calorimetry Michael M. Nardai, ManfredA .B ohn 728 Modeling, Simulation and Characterization of Complex Shaped Solid PropellantC ombustion Sebastian Wurster 736 Evaluationo ft he James Initiation Criterion in the 21 mm and 50 mm PMMAG ap Te st Sebastian Wurster 749 R Re ev vi ie ew w The cover picture shows as even-hole propellant of type NK 1074 that was aged for 36 years at 35 8C, 40 8C, 45 8C, and 50 8C. The 50 8Cs ample shows serious decomposition with completel oss of the grain structure. The other samples do not show alarge differenceinoptical appearance. Periodic mass loss oscillationsf or A5020 propellant can be observed over the temperature range of 30 8Ct o7 08Cw ithout temperature dependence. Additionally the Arrheniusp lot for decompositionv ia mass loss for an A5200 propellant is shown. It shows av ery good correlation of the formal and the simplified model applied in mass loss analysis. Details are discussed in the article by Moritz Heil et al. on page7 06.

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Combustion characteristics of novel hybrid nanoenergetic formulations

Cited by 82 publications

References 29 publications

Modulation of the Reactivity of a WO₃/Al Energetic Material with Graphitized Carbon Black as Additive

Modulation of the Reactivity of a WO₃/Al Energetic Material with Graphitized Carbon Black as Additive

Nanothermites: A short Review. Factsheet for Experimenters, Present and Future Challenges

Comparison of Performance of Fast‐Reacting Nanothermites and Primary Explosives

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Combustion characteristics of novel hybrid nanoenergetic formulations

Cited by 82 publications

References 29 publications

Modulation of the Reactivity of a WO3/Al Energetic Material with Graphitized Carbon Black as Additive

Modulation of the Reactivity of a WO3/Al Energetic Material with Graphitized Carbon Black as Additive

Nanothermites: A short Review. Factsheet for Experimenters, Present and Future Challenges

Comparison of Performance of Fast‐Reacting Nanothermites and Primary Explosives

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Product

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Modulation of the Reactivity of a WO₃/Al Energetic Material with Graphitized Carbon Black as Additive

Modulation of the Reactivity of a WO₃/Al Energetic Material with Graphitized Carbon Black as Additive