Results 51 to 60 of about 39,136 (225)
Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application
Advanced Engineering Materials, EarlyView.N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Grain boundary triple junctions are an essential ingredient of the microstructure of polycrystalline materials. In this study, a triple junction is observed using atomic‐resolution scanning transmission electron microscopy and characterized. Computer simulations reveal that the junction has a dislocation character that is determined by the joining ...
Tobias Brink +4 more
wiley +1 more source
The discussion about the development of the Byzantine city (M. Syuzyumov – A. Kazhdan)
RUDN Journal of World History, 2013 The article is about the fait of the Byzantine cities during the «dark ages». Two major Russian Byzantine scientists spent years discussing on the continuity of the Byzantine city. M.
M Cmilyanich
doaj
Advanced Engineering Materials, EarlyView.Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal +3 more
wiley +1 more source
Numerical Analysis on the Stability of Hydraulic Fracture Propagation
Energies, 2015 The formation of dense spacing fracture network is crucial to the hydraulic fracturing treatment of unconventional reservoir. However, one difficulty for fracturing treatment is the lack of clear understanding on the nature of fracture complexity created
Zhaobin Zhang +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky +3 more
wiley +1 more source
REE, Rb, Sr and Ba Abundances in Yamato (j), (k) and (m) Meteorites
Antarctic Record, 1977 Yamato (j), (k) and (m) meteorites were analyzed for rare-earth elements (REE), Rb, Sr and Ba. The Leedey-normalized REE pattern of (k) shows a small discontinuity between Gd and Dy.
Akimasa MASUDA +3 more
doaj +1 more source
Acta Botânica Brasílica, 2013 This study aimed to analyze relationships among the structure of the tree component, edaphic variables and canopy discontinuity along a toposequence in a seasonal upland (hillside) forest in southern Brazil.
Máida Ariane de Mélo +2 more
doaj +1 more source
Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition
Advanced Engineering Materials, EarlyView.AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley +1 more source
Antarctic Record, 1979 Measurements of the mean cross-sectional area of crystal grams in snow were made with core samples drilled at Mizuho Station, Antarctica. It was found that the cross-sectional area of crystal grains in snow increased with increasing depth till the depth ...
Hideki NARITA, Norikazu MAENO
doaj +1 more source