Results 61 to 70 of about 22,552,481 (422)

Epitaxial Ferroelectric Hexagonal Boron Nitride Grown on Graphene

Advanced Materials, EarlyView.
The epitaxial growth of hexagonal boron nitride (h‐BN) multilayer films on graphene, synthesized on a miscut SiC (0001) substrate, is demonstrated using nitrogen plasma‐assisted molecular‐beam epitaxy. Robust ferroelectricity with switchable out‐of‐plane polarization via interlayer sliding is supported by theoretical and experimental insights ...
Sheng‐Shong Wong, Zhen‐You Lin, Sheng‐Zhu Ho, Chih‐En Hsu, Ping‐Hung Li, Ching‐Yu Chen, Yen‐Fu Huang, Kuo‐En Chang, Yu‐Chiang Hsieh, Chia‐Hao Chen, Ming‐Hao Lee, Ming‐Wen Chu, Kuang‐I Lin, Tse‐Ming Chen, Yi‐Chun Chen, Hung‐Chung Hsueh, Cheng‐Maw Cheng, Chung‐Lin Wu   +17 more
wiley   +1 more source

Data-driven Analysis of Relight variability of Jet Fuels induced by Turbulence [PDF]

arXiv, 2020
For safety purposes, reliable reignition of aircraft engines in the event of flame blow-out is a critical requirement. Typically, an external ignition source in the form of a spark is used to achieve a stable flame in the combustor. However, such forced turbulent ignition may not always successfully relight the combustor, mainly because the state of ...
arxiv  

Quantifying the Risk of Wildfire Ignition by Power Lines under Extreme Weather Conditions [PDF]

arXiv, 2021
Utilities in California conduct Public Safety Power Shut-offs (PSPSs) to eliminate the elevated chances of wildfire ignitions caused by power lines during extreme weather conditions. We propose Wildfire Risk Aware operation planning Problem (WRAP), which enables system operators to pinpoint the segments of the network that should be de-energized ...
arxiv  

Gas-phase and heat-exchange effects on the ignition of high- and low-exothermicity porous solids subject to constant heating

, 2006
This article investigates the ignition of low-exothermicity reactive porous solids exposed to a maintained source of heat (hotspot), without oxygen limitation.
Brindley, J., Griffiths, J., McIntosh, A., Shah, A.A.   +3 more
core   +1 more source

Wood and Cellulose: the Most Sustainable Advanced Materials for Past, Present, and Future Civilizations

Advanced Materials, EarlyView.
Wood and cellulose are the most abundant and important sustainable materials on the planet at the disposal to solve major societal challenges. This perspective, written for all materials scientists, highlights how breakthroughs in cellulose nanotechnology combined with functional nanomaterials can revolutionize important areas like construction ...
Mahiar Max Hamedi, Mats Sandberg, Richard T. Olsson, Jan Pedersen, Tobias Benselfelt, Jakob Wohlert   +5 more
wiley   +1 more source

Minimum Ignition Temperature of Hybrid Mixtures

Chemical Engineering Transactions, 2022
Although the minimum ignition temperature is an important safety characteristic and hybrid mixtures are of high relevance in different industrial processes, the focus of research is directed towards single-substance systems.
Dieter Gabel, Paul Geoerg, Philipp Napetschnig, Ulrich Krause   +3 more
doaj   +1 more source

A Framework for Risk Assessment and Optimal Line Upgrade Selection to Mitigate Wildfire Risk [PDF]

arXiv, 2021
As wildfires in the United States are becoming more frequent and severe, mitigating wildfire ignition risk from power line faults is an increasingly crucial effort. Long-term ignition prevention strategies, especially converting overhead lines to underground cables, are expensive.
arxiv  

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, Caoyu Wang, Cheng Wang, Yanqiu Lyu, Jingxiu Wang, Shuixin Xia, Jianfeng Mao, Zaiping Guo   +7 more
wiley   +1 more source

Solid Polymer Electrolyte with Compatible Cathode‐Electrolyte Interfacial Design Enabling Lithium Metal Batteries Operation at 4.8 V with Long Cycle Life

Advanced Materials, EarlyView.
This study introduce a novel approach to enhancing cathode‐SPE compatibility by utilizing the same poly(ionic liquid) (PolyIL)‐based material in both the SPE and the cathode binder. A modified biomass‐based PolyIL substrate, enriched with highly negatively charged C═O and ─OH groups, is incorporated into the SPE to improve Li+ migration and strengthen ...
Jiajia Li, Haiman Hu, Jiufu Zhu, Xinyu Ma, Yin Hu, Haitao Zhang, Fengming Liu, Suojiang Zhang, Xiaoyan Ji   +8 more
wiley   +1 more source

Synthesis and Photothermal Processing of Silicon‐Based Nanoconfined MXenes

Advanced Materials Interfaces, EarlyView.
Intercalation of titanium carbide (Ti3C2Tx) MXenes with aminopropyl terminated polydimethylsiloxane (amino‐PDMS) is demonstrated through ion‐exchange method followed by photonic curing (PC) using xenon flashlamp. The intercalation and PC result in enhanced interlayer spacing of Ti3C2Tx of 13.5 and 11 nm, respectively. Furthermore, conversion of PDMS to
Najma Khatoon, Binod Subedi, Ahmad Majed, Shiping Wang, Jibao He, Julie N.L. Albert, Michael Naguib, Douglas B Chrisey   +7 more
wiley   +1 more source