Results 141 to 150 of about 372 (181)

Thermit-type SiO2-Al reaction in arc discharge

International Journal of Self-Propagating High-Temperature Synthesis, 2011
Thermit-type SiO2-Al reaction was carried out in conditions of arc discharge in an inert atmosphere at reduced pressure. Phase composition of products was characterized by XRD, SEM, and EDS and process parameters have been optimized.
Yu. M. Grishin, N. P. Kozlov, A. S. Skryabin, S. G. Vadchenko, N. V. Sachkova, A. E. Sytschev   +5 more
openaire   +1 more source

Transient ion ejection during nanocomposite thermite reactions

Journal of Applied Physics, 2009
We observe an intense ion pulse from nanocomposite thermite reactions, which we temporally probe using a recently developed temperature jump/time of flight mass spectrometer. These ion pulses are observed to be much shorter in duration than the overall thermite reaction time.
Lei Zhou, Nicholas Piekiel, Snehaunshu Chowdhury, Donggeun Lee, Michael R. Zachariah   +4 more
openaire   +1 more source

Understanding the Reaction Mechanism of Nanocomposite Thermites

2015
Nanocomposite energetics are a relatively new class of materials that combine nanoscale fuels and oxidizers to allow for the rapid release of large amounts of energy. In thermite systems (metal fuel with metal oxide oxidizer), the use of nanomaterials has been illustrated to increase reactivity by multiple orders of magnitude as a result of the higher ...
openaire   +2 more sources

Activation energy of tantalum–tungsten oxide thermite reactions

Combustion and Flame, 2011
Abstract The activation energy of a sol–gel (SG) derived tantalum–tungsten oxide thermite composite was determined using the Kissinger isoconversion method. The SG derived powder was consolidated using the high-pressure spark plasma sintering (HPSPS) technique at 300 and 400 °C.
Cervantes, O., Kuntz, J., Gash, A., Munir, Z.   +3 more
openaire   +1 more source

Kinetic Analysis of Thermite Reactions in Al-MoO3 Nanocomposites

42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2006
Reactions in energetic Al-MoO 3 nanocomposites prepared by arrested reactive milling were investigated by scanning calorimetry and heated filament ignition experiments. The calorimetry data were processed to obtain kinetic parameters describing the reaction between Al and MoO 3 .
Mirko Schoenitz, Swati Umbrajkar, Edward L. Dreizin   +2 more
openaire   +1 more source

Iron Oxide/Aluminum Fast Thermite Reaction

AIP Conference Proceedings, 2004
The self‐sustained thermite reaction between iron oxide (Fe2O3) and aluminum (Al) is commonly slow. This paper presents an experimental study to evaluate the reaction regression rates of these thermite mixtures with or without continuous electrical discharge.
openaire   +1 more source

ADVANCED CHEMICAL KINETICS OF THERMITE REACTIONS

Proceeding of 8th Thermal and Fluids Engineering Conference (TFEC), 2023
Kesiany M. de Souza, Marcelo J.S. de Lemos   +1 more
openaire   +1 more source

Gas vs. Condensed Phase Reactions in Nano-Thermites

52nd Aerospace Sciences Meeting, 2014
Explosive formulations incorporating aluminum nano particles as a fuel has been extensively studied due to their low diffusion length scales and their high specific energy release compared to traditional organic formulations. In this work we evaluate the combustion product particle size distribution of nanothermites, and deduce some controlling ...
Rohit J. Jacob, Guoqiang Jian, Philip M. Guerieri, Michael Zachariah   +3 more
openaire   +1 more source

Consolidation of Lunar Regolith Simulant by Activated Thermite Reactions

Journal of Aerospace Engineering, 2015
AbstractIt is widely recognized that future exploration missions to the Moon will include construction of permanent lunar bases to support long-term lunar missions. The lunar in situ resource utilization concept to produce superior construction materials is a vital part of exploration missions.
M. A. Hobosyan, K. S. Martirosyan
openaire   +1 more source

Thermite Reaction‐Induced Thermal Runaway of Lithium‐Ion Batteries

Advanced Materials
Abstract Safety is a primary concern for the widespread use of lithium‐ion batteries (LIBs) in electric vehicles as well as energy storage. Despite the numerous mechanisms proposed to explain thermal runaway (TR) and the various methods implemented to mitigate it, battery explosions still occur.
Yuanming Liu, Yao Tian, Zhiqiang Fu, Hongda Du, Baohua Li, Feiyu Kang, Khalil Amine, Guohua Chen   +7 more
openaire   +2 more sources