Estimating the Relative Energy Content of Reactive Materials Using Nanosecond-Pulsed Laser Ablation

MRS Advances ◽  
2018 ◽  
Vol 3 (17) ◽  
pp. 875-886 ◽  
Author(s):  
Jennifer L. Gottfried ◽  
Steven W. Dean ◽  
Eric S. Collins ◽  
Chi-Chin Wu
Keyword(s):  
Energy Release ◽  
Energetic Materials ◽  
Energy Content ◽  
Energetic Material ◽  
Scale Up ◽  
Plasma Chemistry ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser ◽  
Temperature Plasma ◽  
Reactive Materials

ABSTRACTRecently, a laboratory-scale method for measuring the rapid energy release from milligram quantities of energetic material has been developed based on the high-temperature plasma chemistry induced by a focused, nanosecond laser pulse. The ensuing exothermic chemical reactions result in an increase in the laser-induced shock wave velocity compared to inert materials. Laser-induced air shock from energetic materials (LASEM) provides a method for estimating the detonation performance of novel organic-based energetic materials prior to scale-up and full detonation testing. Here, the extension of LASEM to non-organic energetic materials is discussed. The laser-induced shock velocities from reactive materials such as Al/PTFE, Al/CuO, Al/Zr alloys, Al/aluminum iodate hexahydrate, and porous silicon composites have been measured; in many cases, the high sensitivity of the samples resulted in propagation of the reaction to the surrounding material, producing significantly higher shock velocities than conventional energetic materials. Methods for compensating for this effect will be discussed. Despite this limitation, the relative comparison of the shock velocities, emission spectra, and combustion behavior of each type of material provides some insight into the mechanisms for increasing the energy release of the material on a fast (μs) and/or slow (ms) timescale.

Shear Initiated Reactions in Energetic and Reactive Materials

2005 ◽  
Vol 896 ◽  
Author(s):  
Denise Meuken ◽  
Maria Martines Pacheco ◽  
Ries Verbeek ◽  
Richard Bouma ◽  
L Katgerman
Keyword(s):  
Shear Deformation ◽  
Energetic Materials ◽  
Large Scale ◽  
Reaction Rate ◽  
Large Deformations ◽  
Energetic Material ◽  
High Explosives ◽  
Reactive Materials ◽  
Fundamental Understanding

AbstractDeformation of energetic materials may cause undesired reactions and therefore hazardous situations. The deformation of an energetic material and in particular shear deformation is studied in this paper. Understanding of the phenomena leading to shear initiation is not only necessary to explain for example the response of munitions to intrusions or large deformations imposed in storage and transportation accidents. A fundamental understanding of shear initiation also provides the opportunity to initiate energetic materials in a different and controlled manner, and possibly with a tailored reaction rate of the material. Several small and large scale experiments have been performed in which a shear deformation is imposed onto high explosives as well as thermite based reactive materials. Experiments are numerically simulated in order to correlate small and large scale experiments and understand the initiation mechanisms.

Micro/Nano Functional Manufacturing: From Microthruster to Nano Energetic Material to Micro/Nano Initiator

2010 ◽  
Vol 426-427 ◽  
pp. 240-244 ◽  
Author(s):  
K.L. Zhang ◽  
Simon S. Ang ◽  
Siaw Kiang Chou
Keyword(s):  
Mechanical Properties ◽  
Energy Release ◽  
Attitude Control ◽  
Energetic Materials ◽  
Manufacturing Industry ◽  
Energetic Material ◽  
Electrical Energy ◽  
Cuo Nanowire ◽  
Manufacturing Technologies ◽  
Explosive Devices

Functional manufacturing technologies are becoming more and more important to the manufacturing industry and research. As promising categories of functional manufacturing, micro and nano manufacturing have received steadily growing interests in recent years. In this paper, as typical examples to demonstrate micro and nano manufacturing, our work on microthruster, nano energetic material, and micro/nano initiator is presented. Microspacecraft is one application of microsystem in space. In a microspacecraft, a micropropulsion system is required for station keeping, attitude control, and orbit adjust. New silicon and ceramic microthrusters are described. Energetic materials including propellants, explosives, and pyrotechnics have found diverse applications. Nano energetic materials (nEMs) have improved performances in energy release, ignition, and mechanical properties compared to their bulk/micro counterparts. A novel nano Al and CuO nanowire based nEM is discussed. Electro-explosive devices (EEDs) activated by electrical energy are used to initiate an explosive, burning, electrical, or mechanical train. EEDs have found numerous applications in triggering the inflation of airbags in automobiles, micropropulsion, and arm fire/safe devices for ordnance systems. An innovative EED is developed by integrating Al/CuO based nEM with a Au/Pt/Cr micro heater on a substrate.

Metal-Organic Frameworks (MOFs) as Fuels for Advanced Applications: Evaluating and Modifying the Combustion Energy of Popular MOFs

2019 ◽  
Author(s):  
Hatem M. Titi ◽  
Mihails Arhangelskis ◽  
Athanassis Katsenis ◽  
Cristina Mottillo ◽  
Ghada Ayoub ◽  
...  
Keyword(s):  
Energetic Materials ◽  
Energy Content ◽  
Metal Organic Frameworks ◽  
Systematic Investigation ◽  
Combustion Energy ◽  
Metal Organic ◽  
Advanced Applications ◽  
Ligand Replacement

Systematic investigation of combustion energies for popular metal-organic frameworks (MOFs) reveals energy content comparable to conventional energetic materials and can be further modified and dine-tuned by polymorphism and isostructural ligand replacement to yield materials with energy densities comparable to Diesel or kerosene.<br>

Introduction of the acylamino group to bridged bis(nitroamino-1,2,4-triazole): a strategy for tuning the sensitivity of energetic materials

2021 ◽  
Vol 45 (38) ◽  
pp. 18059-18064
Author(s):  
Dongxu Chen ◽  
Jiangshan Zhao ◽  
Hongwei Yang ◽  
Hao Gu ◽  
Guangbin Cheng
Keyword(s):  
Energetic Materials ◽  
Energetic Material

Introduction of the acylamino group into energetic material compounds will contribute to balancing the sensitivity and the energy.

Regulating safety and energy release of energetic materials by manipulation of molybdenum disulfide phase

2021 ◽  
Vol 411 ◽  
pp. 128603
Author(s):  
Xu Zhao ◽  
Zijian Li ◽  
Jianhu Zhang ◽  
Feiyan Gong ◽  
Bin Huang ◽  
...  
Keyword(s):  
Energy Release ◽  
Molybdenum Disulfide ◽  
Energetic Materials

Effect of a fiber-capillary structure on nanosecond laser pulse propulsion

2017 ◽  
Vol 124 (1) ◽  
Author(s):  
Haichao Yu ◽  
Lugui Cui ◽  
Kai Zhang ◽  
Jun Yang ◽  
Hanyang Li
Keyword(s):  
Laser Pulse ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser ◽  
Capillary Structure

THERMAL AND MECHANICAL RESPONSES OF GOLD FILMS DURING NANOSECOND LASER-PULSE HEATING

1994 ◽  
Vol 7 (3) ◽  
pp. 175-188 ◽  
Author(s):  
Taiqing Qiu ◽  
Chang-Lin Tien ◽  
Mark A. Shannon ◽  
Richard E. Russo
Keyword(s):  
Laser Pulse ◽  
Pulse Heating ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser ◽  
Gold Films ◽  
Mechanical Responses ◽  
Laser Pulse Heating
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