Results 91 to 100 of about 2,503 (249)

Growth of tin hillock and whisker under harmonic power conditions in tin-plated copper busbars for power system

Journal of Materials Research and Technology
Tin hillock and whisker growth pose a serious reliability concern in tin-coated copper busbars, particularly in lead-free systems subjected to dynamic electrical environments. In this study, the influence of harmonic current stress on hillock and whisker
Tzu-Sen Su, Wei-Jun Lin, Yen-Chin Huang, Chia-Ming Chang, Tse-I Yeh, Wen-Ting Wu, Cheng-Chien Kuo, Tzu-Sou Chuang, Yung-Ti Hung, Tien-Tze Hsu, Ming-Che Wu, Chih-Hsien Feng, Kuo-Lun Tung, Chao-Hsien Chen, Ming-Da Yang, Yin-Li Su   +15 more
doaj   +1 more source

Programming Structural Symmetry and Emission in Low‐Dimensional Hybrid Perovskites via Time and Temperature

Advanced Science, EarlyView.
We demonstrate programmable structural symmetry and emission in benzylammonium‐based low‐dimensional hybrid perovskites. Continuous shaking transforms orthorhombic platelets into a lower‐symmetry monoclinic phase with broadband emission, whereas thermal activation drives the reverse pathways toward a higher‐symmetry configuration resembling the ...
Luiz G. Bonato, Sirous Khabbaz Abkenar, Balaji Dhanabalan, Quentin Evrard, Luca Goldoni, Sergio Marras, Giorgio Divitini, Milena P. Arciniegas   +7 more
wiley   +1 more source

From Devices to Systems: Integration Strategies for Micro‐Supercapacitors in Microsystems

Advanced Science, EarlyView.
Micro‐supercapacitors are evolving from device‐level energy storage toward system‐level functional units in integrated microsystems. This Review presents a system‐oriented design framework in which integration serves as the key link between application requirements, system constraints, device architectures, and material selection. Monolithic and hybrid
Zhuohao Liu, Gang Li, Kaiying Wang
wiley   +1 more source

Investigation of residual stress influence on fatigue crack growth in remanufactured titanium alloy with inhomogeneous microstructure

Journal of Materials Research and Technology
Laser remanufacturing technology is now the top choice for remanufacturing key components of aero-engines because of its cost-effectiveness, resource utilization, and performance recovery.
Xiaohong Zhan, Wanli Ling, Xiaoping Wang, Qiyu Gao, Lijun Liu   +4 more
doaj   +1 more source

Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping

Advanced Science, EarlyView.
This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron, Bokun Zheng, Ziyang Zhou, Noel Naughton, Suyi Li   +4 more
wiley   +1 more source

Delicate Management of Alkaline‐Substrate‐Induced Interfacial Reactions Enables High‐Efficiency and Stable Deep‐Red CsPbI3 Perovskite Light‐Emitting Diodes

Advanced Science, EarlyView.
We develop a magnesium‐doping strategy to delicately modulate the alkaline substrate‐induced reactions, ensuring high‐quality CsPbI3 perovskite emissive layers with substantially improved stability. The resultant deep‐red LEDs demonstrate a high peak external quantum efficiency of 23.62% and an exceptional half‐lifetime stability of 376 h at 20 mA cm−2,
Zhennan Tian, Jun Wu, Haifeng Zhao, Yong Yang, Zexi Chen, Tianxiang Lv, Xuehang Chen, Lei Yang, Ding Zheng, Chunyang Yin, Junsheng Yu, Sai Bai   +11 more
wiley   +1 more source

Elimination of Low-Angle Grain Boundary Networks in FeCrAl Alloys with the Electron Wind Force at a Low Temperature

Metals
Low-angle grain boundaries (LAGBs) accommodate residual stress through the rearrangement and accumulation of dislocations during cold rolling. This study presents an electron wind force-based annealing approach to recover cold-rolling induced residual ...
Md Hafijur Rahman, Sarah Todaro, Luke Warner, Daudi Waryoba, Aman Haque   +4 more
doaj   +1 more source

High‐Entropy Engineering and External Magnetic Field Modulation Synergistically Enhance the H2S Sensing Performance of Rare‐Earth Perovskite Ferrites

Advanced Science, EarlyView.
A novel high‐entropy perovskite oxide, (Gd0.2Tb0.2Dy0.2Ho0.2Er0.2)FeO3, was successfully synthesized for advanced hydrogen sulfide gas detection. By synergistically coupling high‐entropy‐induced local lattice distortion with weak magnetic field modulation, the tailored material generates abundant active sites. This innovative dual strategy dramatically
Yunfei Wang, Min Zhang, Rui Li, Xiaolong Yao, Zhaofeng Wu, Fengdong Qu, Shan Qiu, Zhenjiang Li   +7 more
wiley   +1 more source

On Microstructure Evolution and Magnetic Properties of Annealed FeNiCrMn Alloy

Metals
Fe-Ni-based alloys have attracted attention due to their potential for applications such as transmission line de-icing, where the core requirements include a Curie temperature near the freezing point and sufficient saturation magnetization.
Yu Zhang, Caili Ma, Jingwen Gao, Wenjie Chen, Song Zhang, Xia Huang   +5 more
doaj   +1 more source

One‐Pot Direct Recycling of Spent LiCoO2 via Synergistic Binder Defluorination and Phase Reconstruction

Advanced Science, EarlyView.
A Li+‐DES system enables targeted defluorination and synergistic repair of spent LiCoO2 cathodes in a single medium. The regenerated material recovers a well‐ordered layered structure with a high capacity of 157.4 mAh g−1 and 83.1% capacity retention after 300 cycles, demonstrating a sustainable and efficient closed‐loop recycling strategy for lithium ...
Yingjie Hu, Songhu Ye, Fan Li, Chunhui Zhong, Bailin Xiang, Yulan Chen, Lili Zhi, Qingxia Liu, Junfeng Li, Zhixiang Chen   +9 more
wiley   +1 more source