Results 91 to 100 of about 24,070 (256)

Microstructural evolution during sintering of copper particles studied by laboratory diffraction contrast tomography (LabDCT)

Scientific Reports, 2017
Pressureless sintering of loose or compacted granular bodies at elevated temperature occurs by a combination of particle rearrangement, rotation, local deformation and diffusion, and grain growth.
S. A. McDonald, C. Holzner, E. M. Lauridsen, P. Reischig, A. P. Merkle, P. J. Withers   +5 more
doaj   +1 more source

The In-Situ Observation of Grain Rotation and Microstructure Evolution Induced by Electromigration in Sn-3.0Ag-0.5Cu Solder Joints. [PDF]

Materials (Basel), 2020
Fu X, Liu M, Xu K, Chen S, Shi Y, Fu Z, Huang Y, Chen H, Yao R.   +8 more
europepmc   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

The influence of crop rotation on soil fertility and yield of spring wheat in forest-steppe zone of the Tuva Republic

Аграрная наука Евро-Северо-Востока, 2016
The results of the study on the effects of crop rotation with different kinds of fallows on spring wheat yield on dark brown soils in forest-steppes of Republic of Tuva are presented.
T. F. Zharova
doaj  

Catalytically Enhanced Near Room‐Temperature Hydrogen Sensing Using Pd‐ZnO Colloidal Crystals

Advanced Functional Materials, EarlyView.
Pd‐decorated ZnO colloidal crystal monolayers demonstrate excellent performance across a wide hydrogen concentration range at 33°C, with high selectivity and reproducible device fabrication. The sensors show strong responses even at low‐ppm H2 concentrations and an ultra‐low detection limit of 82 ppb, indicating their suitability for diverse hydrogen ...
Hamidah Alluhaybi, Samuel J. Ippolito, Chung Kim Nguyen, Durairaj Mahendiran, Michelle J. S. Spencer, Edwin L. H. Mayes, Billy James Murdoch, Jason Choi, Shamali De Silva, James Tardio, Adrian Trinchi, Ahmad E. Kandjani, Mohammad Al Kobaisi, Ylias Sabri   +13 more
wiley   +1 more source

Electric pulse improving the plasticity of the HAl66-6-3-2 alloy by promoting the formation of specific oriented texture

Materials & Design
Electric pulse treatment (EPT) effectively enhances material plasticity but typically compromises strength, and the combined mechanisms of pulsed current on dislocation evolution and grain rotation remain unclear. Here, HAl66-6–3-2 alloy was subjected to
Bobo Lu, Kai Tang, Mingxia Wu, Yi Yang, Gang Yang   +4 more
doaj   +1 more source

Analysis of metallographic structure and hardness of magnesium alloy area using friction stir welding

Advanced Composites Letters, 2019
The present work envisages the friction stir welding of AZ40 M magnesium alloy to analyze the influence of different process parameters (rotation speeds: 600, 800, and 1000 r/min; feed speeds: 100, 120, and 150 mm/min) on the metallographic structure at ...
Wang Hongfeng, Zuo Dunwen, Liu Shengrong, Song Weiwei   +3 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

Atom Probe Tomography as an Emerging Tool for Understanding Defect‑Driven Mechanisms in HfO2‑Based Ferroelectrics

Advanced Functional Materials, EarlyView.
This Perspective highlights atom probe tomography as a powerful tool for understanding the atomic‐scale defect chemistry in HfO2‐based ferroelectrics. 3D mapping of dopants, point defects, and interface chemistry can provide new insight into defect‐driven mechanisms underpinning the ferroelectricity in the system and guide the design of more reliable ...
Kasper Hunnestad, Catherine Dubourdieu, Alexei Gruverman, Dennis Meier   +3 more
wiley   +1 more source

Mitigating Concentration Polarization in Dry‐Processed Ultra‐Thick Cathodes Using a Low‐Viscosity Electrolyte With Soft Li+ Solvation

Advanced Functional Materials, EarlyView.
A low‐viscosity, soft‐solvating methyl ethanoate (ME)‐based electrolyte facilitates electrolyte infiltration into dense dry‐processed ultra‐thick NCM622 cathodes while reducing Li+ desolvation barriers at Li‐metal anodes. Balanced cathode‐scale ion transport and anode‐side interfacial kinetics mitigate concentration polarization and interfacial ...
Jae Bin Park, Yewon Park, Ah Reum Choi, Chaerin Park, Seonhee Jo, Seongwook Chae, Taekyun Kwon, Ji‐Oh Kim, Ji‐Hoon Baik, Sung Hyun Kwon, Minjoon Park, Jin Hong Lee   +11 more
wiley   +1 more source