Results 101 to 110 of about 3,165,974 (241)

Gas Diffusion Layer for Proton Exchange Membrane Fuel Cells: A Review. [PDF]

open access: yesMaterials (Basel), 2022
Guo H   +10 more
europepmc   +1 more source

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

open access: yesAdvanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz   +4 more
wiley   +1 more source

Diffusion: macroscale dwarf and nanoscale giant [PDF]

open access: yes, 2007
Diffusion processes of particles or energy exhibit a characteristic scaling behavior with space and time. In this contribution, the background of this scaling behavior will be shortly described and its consequences in physics, chemistry, biology and ...
Nestle, Nikolaus
core   +1 more source

A combined experimental and first-principle study on the oxidation mechanism of super austenitic stainless steel S32654 at 900 °C

open access: yesScientific Reports, 2017
A combined experimental and first-principle study on the oxidation mechanism of super austenitic stainless steel S32654 at 900 °C for a short time period (1, 3, and 5 h) in air is presented.
Nan Dong   +4 more
doaj   +1 more source

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

open access: yesAdvanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw   +3 more
wiley   +1 more source

Diffusion welding of nickel-based superalloys [PDF]

open access: yes, 2011
Ni based superalloys can be welded by diffusion bonding. Temperature, diffusion coefficient, activation energy and Boltzmann constant influence the quality of diffusion bonding, so obtaining the best condition for welding is considered.
Rezaei, Hossein
core   +1 more source

Studying the sodium effect on the Mo layer by varying the growth pressure on CIGS solar absorption layer

open access: yesZaštita Materijala
Efficiency degradation in flexible Cu(In,Ga)Se (CIGS) solar cells on stainless-steel (STS) substrates occurs due to iron impurity diffusion into the absorber layer.
Suthan Kissinger
doaj   +1 more source

Hydrophobicity Graded Gas Diffusion Layer for Stable Electrochemical Reduction of CO2. [PDF]

open access: yesAngew Chem Int Ed Engl, 2022
Li L   +6 more
europepmc   +1 more source

Gallium Microalloying in Bi–Sn Solders: Interfacial Phase Formation, Wettability, and Long‐Term Shear Reliability Under Isothermal Aging

open access: yesAdvanced Engineering Materials, EarlyView.
Gallium microalloying redirects interfacial reactions in low‐temperature Bi–Sn solders from Cu–Sn toward Cu–Ga intermetallic formation. The resulting Cu–Ga layer suppresses intermetallic growth during thermal aging, alters fracture pathways, and improves interfacial stability.
Iva Králová   +6 more
wiley   +1 more source

Cube-based diffusion algorithm [PDF]

open access: yes, 2007
We study molecular diffusion in (linear) nanopores with different types of roughness in the so-called Knudsen regime. Knudsen diffusion represents the limiting case of molecular diffusion in pores, where mutual encounters of the molecules within the free
Kärger, Jörg   +3 more
core   +1 more source

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