Results 291 to 300 of about 128,560 (335)
Grain refinement in beryllium by equal channel angular extrusion.
, 2003 D.J. Alexander +3 more
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10 Years Development of Potassium‐Ion Batteries
Advanced Materials, EarlyView.Significant progress is made in PIBs over the past decade, but the improvements based on half‐cell testing, low mass loading, and low energy density are insufficient for practical applications. This review summarizes the challenges and strategies for PIBs, highlights the importance of further research focusing on full cells, and provides an analysis of
Mingnan Li +7 more
wiley +1 more source
Advanced Materials, EarlyView.Reversible protonic ceramic electrochemical cells (R‐PCECs) face challenges from sluggish and unstable oxygen reduction and evolution reactions in the air electrode. This review discusses recent progress in triple‐conducting air electrodes, emphasizing mechanisms, performance factors, and design strategies, offering guidance for creating efficient and ...
Xi Chen +8 more
wiley +1 more source
Recent Advances in Wide‐Bandgap Perovskite Solar Cells
Advanced Materials, EarlyView.Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley +1 more source
Designing Maximal Strength in Nanolamellar Eutectic High‐Entropy Alloys
Advanced Materials, EarlyView.This study uses molecular dynamics simulations to guide the design of EHEAs with superior mechanical performance. The simulations reveal a peak tensile strength at a critical interphase boundary spacing. Below this spacing, the governing mechanism shifts from the Hall–Petch strengthening to dislocation multiplication–mediated softening. Guided by these
Weiming Ji +7 more
wiley +1 more source
Advanced Materials, EarlyView.This study proposes a transformative approach for fabricating highly dense and thin ceria/zirconia bilayer electrolytes for solid oxide electrochemical cells using microwave‐assisted volumetric sintering at unprecedentedly low temperatures and short processing times, achieving excellent performance and durability.
Hyeongmin Yu +4 more
wiley +1 more source
Advanced Materials, EarlyView.Strategies achieving high‐energy‐density aqueous zinc‐ion batteries are summarized and analyzed from both their separate advancements and the integrated effectiveness in this review. Then, perspectives are given for valuable guidance for further development of high‐energy‐density aqueous zinc‐ion batteries.
Mingcong Tang +4 more
wiley +1 more source
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2021
New results on grain refinement of aluminium are presented by using the efficiency concept, which is a powerful tool to compare the nucleation efficiency of different grain refiners. This involves the calculation of nucleation sites per unit volume, which gives much more information about nucleation than intercept grain size.
Rein Vainik +2 more
openaire +2 more sources
New results on grain refinement of aluminium are presented by using the efficiency concept, which is a powerful tool to compare the nucleation efficiency of different grain refiners. This involves the calculation of nucleation sites per unit volume, which gives much more information about nucleation than intercept grain size.
Rein Vainik +2 more
openaire +2 more sources
2016
Grain formation during solidification of magnesium and Mg-Al alloys has been studied with a focus on grain refinement mechanisms, solute and particle effects. The variation in grain size with increased aluminium content in hypoeutectic Mg-Al alloys showed a continuous decrease in grain size up to 5 wt% Al, and a stabilisation at higher Al contents ...
Lee, Y. C., Dahle, A. K., St John, D. H.
openaire +3 more sources
Grain formation during solidification of magnesium and Mg-Al alloys has been studied with a focus on grain refinement mechanisms, solute and particle effects. The variation in grain size with increased aluminium content in hypoeutectic Mg-Al alloys showed a continuous decrease in grain size up to 5 wt% Al, and a stabilisation at higher Al contents ...
Lee, Y. C., Dahle, A. K., St John, D. H.
openaire +3 more sources
Mechanism of High Grain Refinement Effectiveness on New Grain Refiner “TiBAl Advance”
2021Grain refiners are used in the aluminum DC casting process to refine the cast structure. On the other hand, high levels of TiB2 particles and other inclusions from the grain refiner can cause clogging of the melt filter. Improvement of the grain refinement effectiveness is required in order to reduce the addition level of grain refiners.
Akihiro Minagawa, Matthew Piper
openaire +2 more sources