Results 121 to 130 of about 752,940 (273)

Cobalt‐Free Single‐Crystal Cathodes for Next‐Generation Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cobalt‐free single‐crystal cathodes enhance lithium‐ion battery stability by mitigating fracture, degradation, and phase transitions. This review highlights Ni‐rich layered, Li‐Mn‐rich, spinel, and olivine frameworks, synthesis strategies enabling morphology and defect control, and structural tuning via doping and coatings, offering pathways toward ...
Srinivasan Alagar, Rakesh Saroha, Jun Kim, Hyung Do Kim, Jung Sang Cho, Sang Mun Jeong   +5 more
wiley   +1 more source

Smart Functional Hydrogels: Emerging Platforms for Thermal and Electrochemical Energy Harvesting and Conversion Systems

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The hydrogel exhibits versatile functions, including efficient thermogalvanic conversion under a temperature difference, and acting as a cooling layer/forming a thermally conductive nanoactive composite for thermovoltaic conversion. Additionally, its self‐healing and self‐powered flexibility play a key role in energy storage systems. The growing demand 
Eunah Kang
wiley   +1 more source

Helical Fiber‐Shaped Aqueous Zn‐Ion Batteries with Modified Zn Anode and Self‐Healing Gel Electrolyte for Flexible Electronics

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A triple synergistic strategy (bismuth‐modified Zn@CNTF anode, helical electrode architecture, and self‐healing gel electrolyte) endows fiber‐shaped aqueous Zn‐ion batteries with outstanding stability. The device delivers a high energy density of 130.54 Wh·kg−1 and retains ≈90.2% of its initial capacity after 1000 dynamic bending cycles, representing a
Wenhui Wang, Chaowei Li, Yinhao Xiao, Xiaoyu Zhang, Jingchao Zhang, Daojun Zhang, Weimin Du, Sehan Cheng, Dongliang Chao, Kai Zhang, Yagang Yao   +10 more
wiley   +1 more source

Effect of Ni on Corrosion Fatigue Properties of Medium Carbon High Strength Spring Steel

Teshugang, 2008
The effect of 0.52～1.00 Ni on corrosion fatigue properties of 2.000 MPa grade medium carbon spring steel NHS ( 0.44~0.45C,1.95~2.08Si,0.68~0.70Mn,0.90~0.92Cr,0. 14~0.
孙曼丽, 惠卫军, 张代明, 董瀚, 翁宇庆   +4 more
doaj  

Hydrogen Production With Water Electrolysis Technologies: Advances, Performance, and Potential Use for Low‐Gradient Combustion

Energy Science &Engineering, EarlyView.
This review links recent advances in water electrolysis with hydrogen utilization in low‐gradient combustion systems. While hydrogen eliminates direct CO2 emissions, its environmental and economic benefits depend strongly on production pathways, system‐level efficiency, and NOx mitigation through MILD/FLOX/HiTAC combustion.
Rafał Buczyński, Przemysław Draga
wiley   +1 more source

Corrosion-Mechanical Fatigue: the Problems of Forecasting. Part 4. Assessment of Corrosion-Mechanical Fatigue Curve Parameters as Well as Durability of Materials

Механика машин, механизмов и материалов
Corrosion is one of the main electrochemical processes that damage metal materials. The combination of cyclic stresses and a corrosive environment causes wear-fatigue damage, called corrosion-mechanical fatigue.
Alexander V. Bogdanovich, Sergey S. Sherbakov   +1 more
doaj   +1 more source

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

Energy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source

Corrosion-fatigue evaluation in Q235A steel using nonlinear Rayleigh surface waves

Journal of Measurement Science and Instrumentation, 2019
This paper presents a non-destrcutive evaluation method for the evolution of corrosion fatigue of Q235 A steel. Specimen surface degradation due to corrosion fatigue from the combined interaction of corrosion and cyclic loading leads to harmonic ...
LI Hai-yang, WANG Zhao-ba, PAN Qiang-hua
doaj  

Bending Fatigue Evaluation and Failure Modes of Ultra‐Thin Silicon Chips on Flexible Substrates

FlexTech, EarlyView.
This study investigates the fatigue lifetime of 20‐μm‐thick chips under bending deformation. Three failure modes are identified: metal pad wearing, metal stress migration, and gold wire break. The underlying mechanisms are analyzed through micro‐scale characterization, and temperature effects on fatigue lifetime are explored.
Ying Chen, Chenyu Niu, Zhaoxian Wang, Xin Song, Dongliang Liu, Ming Xu, Yingchao Zhang, Xue Feng   +7 more
wiley   +1 more source

Corrosion Fatigue Fracture Characteristics of FSW 7075 Aluminum Alloy Joints. [PDF]

Materials (Basel), 2020
Ma Q, Shao F, Bai L, Xu Q, Xie X, Shen M.   +5 more
europepmc   +1 more source