Reactive multilayer films (RMFs) can be integrated into semiconducting electronic structures with the use of microelectromechanical systems (MEMS) technology and represent potential applications in advancement microscale energy-demanding systems. In this study, aluminum/molybdenum trioxide (Al/MoO3)-based RMFs different modulation periods were on a semiconductor bridge (SCB) using combination an image reversal lift-off process magnetron sputtering technology. This produced energetic...

An investigation on the influence of Al/CuO reactive multilayer films (RMFs) additives exploding foil initiator was performed in this paper. Cu film and Cu/Al/CuO RMFs were produced by using standard microsystem technology RF magnetron sputtering technology, respectively. Scanning electron microscopy characterization revealed distinct layer structure as-deposited RMFs. Differential scanning calorimetry employed to ascertain amount heat released thermite reaction between Al CuO films, which...

Wet chemical etching of silicon has been a topic significant interest due to its importance in microelectromechanical systems (MEMS), nanotechnology, and semiconductor device fabrication. Many kinds MEMS components (e.g., cavity, diaphragm, cantilever, etc.) are fabricated through wet anisotropic etching-based bulk micromachining {100} {110} oriented wafers. is primarily carried out using alkaline solutions such as potassium hydroxide (KOH), tetramethylammonium (TMAH), etc. The rate Si{111}...

This paper describes the ignition characteristics of Al/CuO nanoenergetic multilayer films (nEMFs) integrated with semiconductor bridge (SCB). The as-deposited nEMFs were identified SEM and differential scanning calorimetry. Results show that distinct are sputter deposited in a layered geometry, gives reaction heat equal to 2181 J/g. firing experiments have no influence on electrical properties SCB. Furthermore, rapid combustion is able assist SCB generating high-temperature plasma products,...

A new strategy based on a microfluidic platform is proposed for the rapid and high-quality control of explosives' crystal morphology.

This paper deals with the energetic igniters realized by integrating Al/CuO reactive multilayer films (RMFs) Cr Films, which could be used in micro-ignition system. The as-deposited RMFs has been characterized varied analytical techniques. Results show that distinct is sputter deposited a layered geometry, and gives heat of reaction equal to 2760 J/g. structure igniter similar capacitor, may place an electric field across allow instantaneous large-current drift through igniter. Firing...

A dielectric structure pyrotechnic initiator was proposed and the samples were designed realized by integrating Ti/CuO-based reactive multilayer films on ceramic substrate. The consists of essentially two titanium separated a copper oxide (CuO) film, which is just like as capacitor guaranteeing will not be discharged until external voltage has exceeded breakdown strength CuO film. Results electrical explosion experiment show that 1-μm-thick film 60 V, “late time discharge” characteristics,...

Improving the quality of mixing between multiple components is expected to enhance macroscopic performance composite energetic materials. To address limitations associated with intermittent manual techniques in multicomponent mixing, a novel strategy that integrates microfluidic spray drying technology was proposed achieve safe and continuous fabrication ultramixed composites. B/KNO3 utilized as representative example validate applicability this strategy. This allows for simultaneous...

The design, fabrication, and characterization of an energetic semiconductor bridge device are presented. consists a heating element, which has been selectively coated with Al/MoOx multilayer nanofilms to enhance ignition conventional pyrotechnics. Integrated negative temperature coefficient thermistor chip provides protection against electromagnetic electrostatic discharge events. was specifically configured allow ease interconnection by wire bonds silver-filled conductive epoxy. Extensive...

Igniter is the basic component of MEMS-based solid propellant microthrusters (SPM) array, which should response fast with low dissipated energy. To satisfy requirements, micro-semiconductor bridge (MSCB) dual V-angles contributing to reduction energy introduced into array. The electrical explosion characteristics MSCB investigated under constant voltage, in considerations limit power supply micro/nanosatellite, are similar those capacitive discharge. was completely vaporized and burst hot...

Composite energetic microspheres with core–shell structures have attracted significant attention in solving challenges low energy and sensitivity. For the superior spherical structure, strategy of coupling oscillating–swirling–coflowing microfluidics assistance spray drying was proposed, which involves model establishment, experimental verification, performance characterization. The verification experiments agreed that structure spheroidization can be realized under cocoating ratio 1:1....

Al/MoOx nanoenergetic multilayer films (nEMFs) were deposited by magnetron deposition method. The samples with bilayer thicknesses of 75 nm and 225 prepared, respectively, the total thickness is 3 μm. as-deposited nEMFs characterized varied analytical techniques, including SEM, XRD, XPS DSC. Results show that MoOx are amorphous, composed MoO3, Mo2O5 MoO2. values heat release in 3524 J/g 2508 J/g, final products Mo, MoO2, Al2O3. Finally, reaction paths kinetics exothermic reactions discussed.

A multi-parallel recrystallization system based on microfluidic technology was established for rapid recrystallization-condition screening and small-batch preparation of high-quality explosives. The employs a T-shaped tree chip four parallel oscillating flow microreactors to scale up the realize multi-channel explosive preparation. Explosive 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) used study ability in conditions including solvent types, ratio anti-solvent rate rate, surfactant...

AbstractAbstract: In an effort to get detailed information and provide insight into the basic physical process elementary chemical reaction involved in laser-induced reactions explosives, different research methods, including breakdown spectroscopy (LIBS), mass spectrometry (MS), Fourier transform infrared (FTIR), ultraviolet-visible (UV-Vis) spectroscopy, X-ray photoelectron (XPS), fluorescence electron paramagnetic resonance (EPR) etc., have been used investigate photodecomposition of...

A microreaction system, which combines chaotic mixing with liquid-segmented flow for the synthesis of hazardous ionic materials, was established. Previous single micro-segmented achieved good by increasing length tube via slow diffusion reactants; however, it consumed a long residence time and low efficiency. Consequently, optimized micromixing applied to achieve rapid excellent initial reactants. Thereafter, combined ensure homogeneity particle nucleation/growth while overcoming...

A test device for the reaction performance of hydrogen peroxide solution catalytic decomposition in a microchannel silver bed.

In this paper, microchip exploding foil initiators were fabricated by micro-electro-mechanical system scale fabrication methods, such as magnetron sputtering, photolithography, and chemical vapor deposition. A small-scale capacitor discharge unit based on the metal-oxide-semiconductor controlled thyristor was designed produced to study performance of initiator. The without load effect protection devices studied short-circuit test. Then, electric explosion characteristic initiator also...

Triggered spark-gap switch is a popular discharge for pulse power systems. Previous studies have focused on planarizing this using thin film techniques in order to meet the requirements of compact size Such switches are one-shot due electrodes being too sufficiently resist spark-erosion. Additionally, these did not employ any structures securing internal gas composition, resulting inconsistent performance under harsh atmospheres. In work, novel planar triggered (PTS) with hermetically sealed...