Results 21 to 30 of about 645 (171)
Electrophoretic Deposition and Characterization of Highly Exothermic Al/CuO Nanothermites
International Journal of Electrochemical Science, 2021 Based on the superior exothermic properties, Al/CuO nanothermites are considered as one of the most promising energetic materials in recent years. In this work, the CuO nanospheres with particle size of 100–120 nm were successfully synthesized by a ...
Miao He +8 more
doaj +1 more source
Three-dimensionally Ordered Macroporous Structure Enabled Nanothermite Membrane of Mn2O3/Al. [PDF]
Sci Rep, 2016 Mn2O3 has been selected to realize nanothermite membrane for the first time in the literature. Mn2O3/Al nanothermite has been synthesized by magnetron sputtering a layer of Al film onto three-dimensionally ordered macroporous (3DOM) Mn2O3 skeleton.
Zheng G +5 more
europepmc +2 more sources
C, 2022 In the past decade, the formulation of spark-desensitized nanothermites has considerably advanced, making them safe to handle. When ignited, these materials reveal impressive properties such as high temperatures (>1000 °C), intense heat releases (>kJ/cm3)
Pierre Gibot
doaj +1 more source
Afterburn modeling of nanothermite composites [PDF]
AIP Conference Proceedings, 2020 The Jones-Wilkins-Lee (JWL) EOS is widely used to capture detonation energy release but not the energy release from secondary combustion, or afterburn. To account for the burn mechanism of detonation products with that of combustion, the JWL EOS had been extended such as in the work of Miller[1], whose reactive flow model for highly non-ideal ...
Chan Hay Yee Serene +4 more
openaire +1 more source
Combustion characteristic and aging behavior of bimetal thermite powders
Defence Technology, 2021 Nanothermites have been employed as fuel additives in energetic formulations due to their higher energy density over CHNO energetics. Nevertheless, sintering and degradation of nanoparticles significantly limit the practical use of nanothermites. In this
Hong-qi Nie +3 more
doaj +1 more source
Advanced Functional Materials, Volume 33, Issue 49, December 1, 2023., 2023 A multi‐material aerosol jet printing system is introduced for the in situ mixing of a nanoscale thermite comprised of aluminum and copper (II) oxide particles. The high resolution patterning enables precise integration with printed electronics, exemplified by an energetic antenna tuned to 2.45 GHz with low ignition delay, while the digital control ...
Livio Gamba +3 more
wiley +1 more source
Fast reactions of shocked energetic microporous metallic composites
Propellants, Explosives, Pyrotechnics, Volume 48, Issue 10, October 2023., 2023 Abstract Metal/oxidizer composites can potentially release more energy than organic explosives such as HMX (1,3,5,7‐Tetranitro‐1,3,5,7‐tetrazocane), but are generally unsuitable for high‐performance explosives due to slow energy release. These composites have physically separated fuel and oxidizer components, and their energetic combustion reactions ...
Siva Kumar Valluri +3 more
wiley +1 more source
High‐Speed, microwave ignition: Antenna igniters with frequency and bandwidth selectivity
Propellants, Explosives, Pyrotechnics, Volume 48, Issue 8, August 2023., 2023 Abstract This effort demonstrates the development of (1) dielectric breakdown igniters and (2) bridgewire igniters powered by half‐wavelength dipole microwave microstrip antennas with bandwidth selectivity for use in standoff ignition applications. Dielectric igniters utilized a dielectric epoxy filled with up to 30 wt.
Justin A. Lajoie +2 more
wiley +1 more source
Engineering Reports, Volume 5, Issue 4, April 2023., 2023 Poly(VDF‐ter‐HFP‐ter‐TFE) terpolymer works as binder among components before the reaction. The content of terpolymer affects the thermal processes and residues directly. Terpolymer can reduce ignition energy threshold. Terpolymer can increase combustion duration time.
Jiaxing Song +5 more
wiley +1 more source
Defence Technology, 2023 Combustion within small motors is key in the application-specific development of nanothermite-based micro-energetic systems. This study evaluates the performance of nanothermite mixtures in a converging-diverging nozzle and an open tube.
Ahmed Fahd +5 more
doaj +1 more source