Journal article
Ni/Al Energetic Nanocomposites and the Solid Flame Phenomenon
Journal of physical chemistry. C, v 120(47), pp 27066-27078
01 Dec 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Reactive nanocomposites (RNCs), which are comprised of stochastically layered metals, were fabricated using short-term high-energy ball milling of nickel and aluminum powders. By varying the milling conditions, the internal nanostructure of the RNCs can be controlled. Utilizing the slice and view methodology by use of a dual beam scanning electron/ion microscope, 3D reconstruction of the RNC particles was accomplished and their nanostructures were quantitatively and statistically analyzed. The reactivity, including ignition and combustion parameters, as well as microstructure of the combustion wave, for different RNCs was analyzed using high-speed infrared imaging and high-speed micro video recording. The direct relationships between the 3D structural characteristics and reactivity parameters have been determined. A comparison with existing theoretical models allows us to conclude that, for specially designed RNCs, the reaction can be initiated and self-propagates solely due to solid-state mechanisms, i.e., in the solid flame mode. In addition, a novel nano quasi-homogeneous reaction regime was discovered. It was directly demonstrated that, by understanding the fundamental quantitative relationship between the structure and properties of RNCs, unprecedented control over the reaction can be achieved.
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Details
- Title
- Ni/Al Energetic Nanocomposites and the Solid Flame Phenomenon
- Creators
- Christopher E. Shuck - University of Notre DameJoshua M. Pauls - University of Notre DameAlexander S. Mukasyan - National University of Science and TechnologyUniv. of Notre Dame, IN (United States)
- Publication Details
- Journal of physical chemistry. C, v 120(47), pp 27066-27078
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 13
- Grant note
- DE-NA0002377 / Department of Energy, National Nuclear Security Administration, Predictive Science Academic Alliance Program II HDTRA1-10-1-0119 / Defense Threat Reduction Agency (DTRA); United States Department of Defense; Defense Threat Reduction Agency K2-2015-068 / Ministry of Education and Science of the Russian Federation; Ministry of Education and Science, Russian Federation
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000389161300052
- Scopus ID
- 2-s2.0-84999266621
- Other Identifier
- 991019296570604721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology