Results 51 to 60 of about 33,716 (263)

Influence of magnesium content on the reaction kinetic characteristics of powder combustion and explosion reactions in Al–Mg alloys

工程科学学报
This study utilizes chemical kinetics simulation technology to systematically investigate the combustion and explosion characteristics of aluminum-magnesium (Al–Mg) alloy powders with varying magnesium contents (10%, 20%, 30%, 40%, and 50% mass fraction).
Lei PANG, Qi FENG, Chao LI, Jiqing LIU, Siheng SUN   +4 more
doaj   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Electric explosion characteristics of multi-point series explosion foil initiator

Defence Technology
Investigating the characteristics of synchronous electrical explosions of multiple exploding foil initiators (EFI) in the same circuit, a four-point series-connected EFI circuit utilizing flexible flat cables was designed to analyze the electrical ...
Zheng Ning, Lirong Bao, Ang Li, Songmao Zhao, Zeyu Cheng, Peng Zhu, Ruiqi Shen   +6 more
doaj   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Theoretical and Experimental Investigation of Explosion Characteristics of Hydrogen Explosion in a Closed Vessel

Energies, 2022
A simplified model that calculates the deflagration pressure–time curves of a hydrogen explosion was proposed. The deflagration parameters (pressure peak, duration, deflagration index, and impulse) of hydrogen–air mixtures with different hydrogen concentrations were experimentally investigated.
Huadao Xing, Runze Yu, Guangan Xu, Xiaodong Li, Yanyu Qiu, Derong Wang, Bin Li, Lifeng Xie   +7 more
openaire   +2 more sources

Toward Knowledge‐Based Workflows: A Semantic Approach to Atomistic Simulations for Mechanical and Thermodynamic Properties

Advanced Engineering Materials, EarlyView.
Knowledge‐based atomistic workflows are presented for mechanical and thermodynamic properties. By coupling modular simulations with ontology‐aligned metadata and provenance, Fe case studies on elastic behavior, defects, thermal properties, and Hall–Petch strengthening reveal how FAIR, queryable, and reusable simulation data can be generated. Mechanical
Abril Azócar Guzmán, Hoang‐Thien Luu, Sarath Menon, Tilmann Hickel, Nina Merkert, Stefan Sandfeld   +5 more
wiley   +1 more source

Explosion Characteristics of Aluminum Nanopowders

Aerosol and Air Quality Research, 2010
In 2005, an investigation conducted on three nanoscale attrition millers in Taiwan revealed that all three had undergone metal nanopowder explosions in the past. This research was aimed at determining the relationships between the particle diameter of an aluminum nanopowder and its maximum explosion pressure (P(subscript max)), maximum rate of pressure
Hong-Chun Wu, Hsin-Jung Ou, Hsiao-Chi Hsiao, Tung-Sheng Shih   +3 more
openaire   +1 more source

NQR Characteristics of an RDX Plastic Explosives Simulant [PDF]

Applied Magnetic Resonance, 2012
For reliable detection of explosives, a combination of methods integrated within a single measurement platform may increase detection performance. However, the efficient field testing of such measurement platforms requires the use of inexplosive simulants that are detectable by a wide range of methods.
Turecek, J., Schwitter, B., Miljak, D., Stancl, M.   +3 more
openaire   +2 more sources

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Power-to-Gas: Safety Characteristics of Hydrogen/Natural- Gas Mixtures

Chemical Engineering Transactions, 2016
Safety characteristics for explosion protection of natural gas/hydrogen mixtures relevant in connection with the Power2Gas technology were studied in this work. Lower explosion limits (LEL) and upper explosion limits (UEL), limiting oxygen concentrations
Enis Askar, Volkmar Schröder, Stefan Schütz, Albert Seemann   +3 more
doaj   +1 more source