Journal article
Kinetics and Mechanism of Ignition in Reactive Al/Ni Nanostructured Materials
Journal of physical chemistry. C, v 122(47), pp 27082-27092
29 Nov 2018
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A high-speed electrothermography approach is applied to investigate the mechanism and kinetics for nanostructured Al/Ni foils. Application of the Kolmogorov-Johnson-Mehl-Avrami and adiabatic thermal explosion models reveal that the activation energy for nucleation appears to be much higher than that for the reaction. It is shown that formation of intermetallic nuclei is the limiting step that defines the ignition characteristics of the foils at temperatures below 500 K, while the process is reaction-limited at higher temperatures. Nucleation is also shown to play an important role during rapid (similar to 10 m/s) propagation of the combustion (reaction) wave along the Al/Ni foils. These findings suggest new approaches for controlling the ignition and combustion processes for nanostructured reactive materials.
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Details
- Title
- Kinetics and Mechanism of Ignition in Reactive Al/Ni Nanostructured Materials
- Creators
- Khachatur Manukyan - Univ Notre Dame, Nucl Sci Lab, Dept Phys, Notre Dame, IN 46556 USAJoshua Pauls - Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USAChristopher Shuck - Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USASergei Rouvimov - Univ Notre Dame, Dept Elect Engn, Notre Dame, IN 46556 USAAlexander Mukasyan - National University of Science and Technology (MISiS), Moscow, 119049, Russia.Khachik Nazaretyan - Institute of Chemical Physics NAS RAHakob Chatilyan - Institute of Chemical Physics NAS RASuren Kharatyan - Yerevan State UniversityUniv. of Notre Dame, IN (United States)
- Publication Details
- Journal of physical chemistry. C, v 122(47), pp 27082-27092
- Publisher
- American Chemical Society; Washington, DC
- Number of pages
- 11
- Grant note
- AR 13RF 057//13 03 90604 / Russian Foundation for Basic Research (RFBR) AR 13RF 057//13 03 90604 / State Committee of Science of Armenia DE-NA0002377 / Department of Energy, National Nuclear Security Administration as part of the Predictive Science Academic Alliance Program II K2-2017-083 / NUST "MISTS"
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000451933400032
- Scopus ID
- 2-s2.0-85057866024
- Other Identifier
- 991019296574204721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology