Results 31 to 40 of about 275,010 (320)

Effects of volumetric energy density on the microstructure of additively manufactured Scalmalloy

open access: hybridMaterials Characterization
The parameters chosen in a laser powder bed fusion (LPBF) alloy build can drastically affect the resulting build microstructure. Aspects such as grain structure, precipitation, and porosity depend on the local thermal history during the build process and any post-build heat treatment the alloys may undergo.
N. A. HUGHES   +3 more
openalex   +2 more sources

Functionalized Graphene Microspheres for High Volumetric Energy Density Supercapacitors

open access: greenCarbon
Huimin Shi   +9 more
openalex   +2 more sources

Dense Graphene Monolith for High Volumetric Energy Density Li–S Batteries

open access: greenAdvanced Energy Materials, 2018
AbstractDespite the outstanding gravimetric performance of lithium–sulfur (Li–S) batteries, their practical volumetric energy density is normally lower than that of lithium‐ion batteries, mainly due to the low density of nanostructured sulfur as well as the porous carbon hosts. Here, a novel approach is developed to fabricate high‐density graphene bulk
Huan Li   +16 more
openalex   +4 more sources

Process Optimization and Microstructure Analysis to Understand Laser Powder Bed Fusion of 316L Stainless Steel

open access: yesMetals, 2021
The microstructural development of 316L stainless steel (SS) was investigated over a wide range of systematically varied laser powder bed fusion (LPBF) parameters, such as laser power, scan speed, hatch spacing and volumetric energy density.
Nathalia Diaz Vallejo   +5 more
doaj   +1 more source

Mechanical behavior and energy dissipation of infilled, composite Ti-6Al-4V trusses

open access: yesMaterials & Design, 2021
Trusses are open, three-dimensional structures with repeatable unit cells useful for high-specific strength, stiffness, and energy-dissipating applications.
Wesley A. Chapkin   +3 more
doaj   +1 more source

Experimental evaluation into novel, low cost, modular PEMFC stack [PDF]

open access: yes, 2012
Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)The Polymer Electrolyte Membrane Fuel Cell (PEMFC), despite being regarded as an ideal replacement to the internal combustion engine, is still not an economically attractive pri-mover due ...
David Price (18505)   +7 more
core   +8 more sources

Gravimetric and volumetric energy densities of lithium-sulfur batteries

open access: yesCurrent Opinion in Electrochemistry, 2017
Lithium-sulfur (Li-S) batteries receive considerable attention as a potential alternative to lithium-ion batteries (LIBs) due to their high theoretical gravimetric energy density ( E g ). However, their volumetric energy density ( E v ), which is also very important for practical applications is often neglected to emphasize their superior gravimetric
Weijiang Xue   +6 more
openaire   +2 more sources

Aqueous multi-electron electrolyte for hybrid flow batteries with high energy and power densities

open access: yesJournal of Power Sources Advances, 2020
Flow battery is a promising energy storage technology for facilitating utilization of renewable resources. While new types of flow batteries have been explored toward high energy density, hampering the power density due to high electrolyte viscosity and ...
Qiuhong Wang, Walid A. Daoud
doaj   +1 more source

Pnb9o25-Li4ti5o12 Blended Anode with Enhanced Capacity and Volumetric Energy Density

open access: greenApplied Surface Science
Jinsong Li   +5 more
openalex   +2 more sources

Transverse structure and energy deposition by a subTW femtosecond laser in air: from single filament to superfilament

open access: yesNew Journal of Physics, 2019
We traced experimentally transition from a single air filament to the superfilament under action of powerful loosely focused (NA ∼ 0.0021) femtosecond beam.
D Pushkarev   +12 more
doaj   +1 more source

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