Results 51 to 60 of about 725,162 (279)

Homogenization of twin-roll cast A8006 alloy

open access: yesTransactions of Nonferrous Metals Society of China, 2012
Microstructure and hardness of twin-roll casting (TRC) process and direct-chill casting (DC) for A8006 alloy with and without homogenization were investigated by means of scanning electron microscopy (SEM), X-ray diffraction analysis and Vickers hardness measurement.
Zhong-wei CHEN, Shi-shun LI, Jing ZHAO
openaire   +1 more source

Twin-Roll-Casting and Hot Rolling of Magnesium Alloy WE43 [PDF]

open access: yes, 2014
Twin-Roll-Casting enables the production of magnesium strip and sheet material with advanced properties. In the course of a junior research group, supported by the Development Bank of Saxony as well as the European social fund, the magnesium alloy WE43 ...
Neh, Kristina   +2 more
core   +1 more source

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon   +6 more
wiley   +1 more source

Effect of low cast-rolling speeds on the microstructure and mechanical properties of twin-roll casting high Mg AA5059 alloy sheets

open access: yesJournal of Materials Research and Technology, 2022
This study was undertaken to investigate the effect of low cast-rolling speeds (
Jinyu Fu   +5 more
doaj   +1 more source

Design and Characterization of a Two‐Dimensional Soft Array Based on Cooperative Dielectric Elastomer Actuators

open access: yesAdvanced Functional Materials, EarlyView.
A fully polymeric two‐dimensional array of Dielectric Elastomers enables self‐sensing, cooperative actuation, and large‐stroke operation in a DE‐based autonomous conveyor. Based only on voltage and current measurements at actuator level, the system detects the presence of a ball and subsequently drives it toward a target position.
Saverio Addario   +6 more
wiley   +1 more source

Casting of Al-1%Si Strip Using Single-Roll Caster Equipped with Scraper

open access: yesMetals
The high-speed, low-load twin-roll casting of Al-Si alloys with a Si content of approximately 1 at% is needed to prevent the occurrence of cracks.
Toshio Haga, Hirofumi Sakaue
doaj   +1 more source

2D Co‐Assembly of Solid Acids Enables Stable Superprotonic Conduction Above 260°C

open access: yesAdvanced Functional Materials, EarlyView.
A two‐dimensional co‐assembly strategy integrates antimony phosphate and phosphotungstic acid nanosheets into free‐standing inorganic lamellar membranes with confined acid–acid interfaces. The resulting interfacial hydrogen‐bond network enables anhydrous proton conductivity exceeding 0.1 S cm−1 at 260°C and supports stable high‐temperature fuel‐cell ...
Qiuning Li   +8 more
wiley   +1 more source

Modeling of the Twin-Roll Casting Process: Transition from Casting to Rolling [PDF]

open access: yesTransactions of the Indian Institute of Metals, 2018
During twin-roll casting, an alloy melt is passing the gap between two counter-rotating rolls, where cooling and solidification leads to the continuous formation of a solid strand. In order to describe this process, a two-phase Eulerian–Eulerian volume-averaging model is presented that accounts for (1) transport and growth of spherical grains within a ...
Christian Rodrigues   +3 more
openaire   +1 more source

Balancing Hydrophobicity and Hydrophilicity: Dual Filler‐Engineered Proton Exchange Membranes for Durable, High‐Power Fuel Cells

open access: yesAdvanced Functional Materials, EarlyView.
Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho   +13 more
wiley   +1 more source

Sky‐Directional Radiative Cooling Meta‐Films for Daylighting Windows

open access: yesAdvanced Functional Materials, EarlyView.
A geometry‐mediated microprism meta‐film enables transparent, sky‐directional radiative cooling for daylighting windows. By decoupling control of visible transmittance from mid‐infrared emissivity, ground‐emitted heat absorption is suppressed while skyward heat dissipation is enhanced.
Seung‐Ah Yu   +7 more
wiley   +1 more source

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