Results 31 to 40 of about 124,234 (235)

Burning Velocity for the Compacted Mixture of a Ti-Al System, Just after Spontaneous Ignition in the SHS Process

Journal of Thermal Science and Technology, 2012
Burning velocity just after spontaneous ignition has been examined not only experimentally but also theoretically, as related to a Self-propagating High-temperature Synthesis (SHS) process, for a Ti-Al system.
Atsushi MAKINO, Ryou HIGUCHI, Akimasa HISAMOTO   +2 more
doaj   +1 more source

Numerical investigation of forced ignition in laminar counterflow non-premixed methane-air flames

, 2007
Simulations of forced ignition of non-premixed laminar counterflow flames are used to study the effect of strain rate on ignition success. A one dimensional calculation is performed, using detailed methane chemical kinetics and treating the spark as an ...
Richardson, E.S., Mastorakos, E.
core   +1 more source

Gas-phase and heat-exchange effects on the ignition of high- and low-exothermicity porous solids subject to constant heating

, 2006
This article investigates the ignition of low-exothermicity reactive porous solids exposed to a maintained source of heat (hotspot), without oxygen limitation.
Brindley, J., Shah, A.A., Griffiths, J., McIntosh, A.   +3 more
core   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Multi-messenger dynamic imaging of laser-driven shocks in water using a plasma wakefield accelerator

Nature Communications
Understanding dense matter hydrodynamics is critical for predicting plasma behavior in environments relevant to laser-driven inertial confinement fusion.
Mario D. Balcazar, Hai-En Tsai, Tobias M. Ostermayr, Paul Campbell, Matthew R. Trantham, Félicie Albert, Qiang Chen, Cary Colgan, Gilliss M. Dyer, Zachary Eisentraut, Eric Esarey, Elizabeth S. Grace, Benjamin Greenwood, Anthony J. Gonsalves, Sahel Hakimi, Robert Jacob, Brendan Kettle, Paul King, Karl Krushelnick, Nuno Lemos, Eva E. Los, Yong Ma, Stuart P. D. Mangles, John Nees, Isabella M. Pagano, Carl B. Schroeder, Raspberry A. Simpson, Anthony V. Vazquez, Jeroen van Tilborg, Cameron G. R. Geddes, Alexander G. R. Thomas, Carolyn C. Kuranz   +31 more
doaj   +1 more source

Combustion and Thermal Behavior of Selected Metallic Fuels Used in Pyrotechnic Compositions

Energies
Metal powders have both a high specific energy and a high energy density, which explains their widespread use in energetic materials (propellants, explosives and pyrotechnics).
Davney Ondzié Pandzou, Nabil Mokrani, Stéphane Bernard, Léo Courty   +3 more
doaj   +1 more source

A Critical Analysis of the Oxy-Combustion Process: From Mathematical Models to Combustion Product Analysis

Energies, 2022
Fossil fuels are the most widely used resource for energy production. Carbon dioxide (CO2) emissions are correlated with climate change, and therefore these emissions must be reduced in the future.
Brenda Raho, Gianpiero Colangelo, Marco Milanese, Arturo de Risi   +3 more
doaj   +1 more source

Advancing SafeWax, A Bio‐Inspired Superhydrophobic Coating, Toward Sustainable and Climate‐Resilient Crop Protection

Advanced Functional Materials, EarlyView.
This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie, Iryna Polishchuk, Franziska Tauber, Coralie Schneider, Elena Prudnikov, Alessia Calora, Silvia Milita, Simona Fermani, Mireia Alejandra Ibanez Revert, Ilaria Filippetti, Claudio Ratti, Matthias Kellermeier, Markus Rueckel, Boaz Pokroy   +13 more
wiley   +1 more source

Ignition of a rectangular solid by an external heat flux [PDF]

, 1994
The influence of corners on the ignition of a solid exposed to a surface energy flux is analyzed with large activation energy asymptotics. We begin with the analysis of the ignition of semi-infinite wedges by a constant heat flux.
Vázquez Espí, Carlos, Liñán Martínez, Amable   +1 more
core  

A Case Study on Current Developments and Future Direction of Hypergolic Propellant Systems

Aerospace
Hypergolic propellants are easy to start and restart, stay liquid at normal temperatures, and avoid storage issues, making them ideal for spacecraft propulsion systems.
Nadir Yilmaz, Michael Arowolo, Alpaslan Atmanli   +2 more
doaj   +1 more source