Corrigendum to “Reactive structural materials consolidated by cold spray: Al–CuO thermite” [Surf. Coat. Technol. 226 (2013) 60–67]

Bacciochini, A.; Radulescu, Matei I.; Yandouzi, M.; Maines, G.; Lee, J.J.; Jodoin, B.

doi:10.1016/j.surfcoat.2014.02.006

Cited by 3 publications

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“…Therefore, it is rather a cluster of CuO particles agglomerated during cryomilling. The 2:1 molar ratio of Al:CuO is the stoichiometrically ideal composition in which both Al and CuO materials can fully participate in the reaction without remnant so that the maximum exothermic energy can be achieved [12]. However, in 2:1 composition of the present study, some of CuO particles were not incorporated into the Al particles during cryomilling, but exist as agglomerated clusters of themselves.…”

Section: Resultsmentioning

confidence: 78%

Archives of Metallurgy and Materials

Oh,

Kim,

Ahn

2019

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is a thermite material exhibiting the exothermic reaction only when aluminum melts. For wide spread of its application, the reaction temperature needs to be reduced in addition to the enhancement of total reaction energy. In the present study, a thermite nanocomposite with a large contact area between Al and CuO was fabricated in order to lower the exothermic reaction temperature and to improve the reactivity. A cryomilling process was performed to achieve the nanostructure, and the effect of composition on the microstructure and its reactivity was studied in detail. The microstructure was characterized using SEM and XRD, and the thermal property was analyzed using DSC. The results show that as the molar ratio between Al and CuO varies, the fraction of uniform nanocomposite structure was changed affecting the exothermic reaction characteristics.

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Section: Resultsmentioning

confidence: 78%

Archives of Metallurgy and Materials

Oh,

Kim,

Ahn

2019

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“…[18][19][20] High-speed camera was employed to recording the combustion performances. [18][19][20] High-speed camera was employed to recording the combustion performances.…”

Section: Resultsmentioning

confidence: 99%

“…The flame propagation of the samples is a key factor to study the reactivity of the mixtures, which is commonly used to examine propagation wave behavior in solid materials such as thermites . High‐speed camera was employed to recording the combustion performances.…”

Section: Resultsmentioning

confidence: 99%

Building Energetic Material from Novel Salix Leaf‐like CuO and Nano‐Al through Electrophoretic Deposition

Yin

2016

Bulletin Korean Chem Soc

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In this study, an energetic material was prepared by depositing nano-Al on CuO arrays via electrophoretic deposition (EPD), which offers a feasible route for nano-Al integration. The morphology and structure of the CuO arrays and Al/CuO composites were characterized by scanning electron microscopy and X-ray diffraction. The CuO arrays were homogenously salix leaf-like structure with a width of~150 to 200 nm. The energy density of Al/CuO composites was approximate to 1454.5 J/g by integrating the differential scanning calorimetry (DSC) plot and the combustion performance was recorded by a high-speed camera. Moreover, the combustion flames were violent and the whole reaction process only lasted 72.2 ms, indicating that the energy of the Al/CuO nanothermite can be released effectively.

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“…The cold spray may also be interesting as a technique enabling consolidation of RSMs from powders without substantial heating necessary and leading to a relatively high product density . It was also applied to consolidate Al–CuO thermite . Other reactive composite systems were prepared by hot pressing elemental powders, for example, W–Zr …”

Section: Structures Of Rsm and Methods Of Their Preparationmentioning

confidence: 99%

“…Although low density and strength of Al‐PTFE composites severely limits their applications, such materials were studied rather extensively, representing a common reference system for many RSMs developed recently. In addition to metal‐fluoropolymers, the types of RSMs described in the literature include thermites, for example, reactive intermetallic systems, such as Al–Ni, for example, metal‐metalloid systems, including B–Ti, B–Zr, for example, systems forming metal carbides, for example, and simply composites and alloys combining materials with different desired properties, for example, tungsten with a high density with zirconium or hafnium, metals with a relatively high reactivity . Along with the composition, design of composite RSMs and the methods used for their testing vary widely, depending on the intended application, properties of individual components, and capabilities available to the material designers.…”

Section: Introductionmentioning

confidence: 99%

Reactive Structural Materials: Preparation and Characterization

Hastings

Dreizin

2017

Adv Eng Mater

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Reactive structural materials, which can serve both as structural elements as well as a source of chemical energy released upon initiation have emerged as an important class of metal-based composites for use in various energetic systems. Such materials rely on a variety of exothermic reactions, from oxidation to formation of metal-metalloid and intermetallic phases. The rates of these reactions are as important as the energy that may be released, in order for them to occur at the time scales compatible with the requirements of applications. Therefore, chemical composition, scale at which reactive components are mixed, and the structure and morphology of materials are important and can be controlled by the method of preparation and compaction of the composite materials. Methods of preparation of the composite structures are briefly reviewed as well as methods of characterization of their mechanical and energetic properties. In addition to common thermo-analytical and static mechanical property measurements, dynamic tests of mechanical properties as well as ignition and combustion experiments are necessary to understand the fragmentation, initiation, and heat release expected for these materials when they are stimulated by an impact, shock, or rapid heating. Reaction mechanisms are studied presently for the thin layers and small samples of reactive materials initiated in carefully designed experiments. In other experiments, impact and explosive initiation are characterized for larger material compacts in the conditions imitating practical scenarios. Examples of results describing thermal, impact, and explosive initiation of some of the reactive materials are presented.

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Corrigendum to “Reactive structural materials consolidated by cold spray: Al–CuO thermite” [Surf. Coat. Technol. 226 (2013) 60–67]

Cited by 3 publications

References 0 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

Building Energetic Material from Novel Salix Leaf‐like CuO and Nano‐Al through Electrophoretic Deposition

Reactive Structural Materials: Preparation and Characterization

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