Results 51 to 60 of about 271 (258)

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

Advanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska, Eugene A. Eliseev, Sergei V. Kalinin, Long‐Qing Chen, Dean R. Evans, Venkatraman Gopalan   +5 more
wiley   +1 more source

First impurity powder injection experiments in LHD

Nuclear Materials and Energy, 2020
Injection of impurities in the form of sub-millimeter powder grains is performed for the first time in the Large Helical Device (LHD) plasma, employing the Impurity Powder Dropper (IPD) (Nagy et al., 2018), developed and built by PPPL. Controlled amounts
F. Nespoli, N. Ashikawa, E.P. Gilson, R. Lunsford, S. Masuzaki, M. Shoji, T. Oishi, C. Suzuki, A. Nagy, A. Mollen, N.A. Pablant, K. Ida, M. Yoshinuma, N. Tamura, D.A. Gates, T. Morisaki   +15 more
doaj   +1 more source

Dopant Distribution in Ga‐Implanted CdO—A Correlative Microscopy and Molecular Dynamics Study

Advanced Functional Materials, EarlyView.
This work demonstrates that ion implantation offset angle could modulate carrier concentration and mobility in cadmium oxide thin films. Combining correlative microscopy workflow and molecular dynamics simulations, this study reveals the control of interfacial cluster density with tailoring implantation angles, and the optimum offset angle that ...
Morvarid Ghorbani, Bhaveshkumar Kamaliya, Maxwell J. Tolchin, Ryan W. Spangler, Youngji Kim, Joshua D. Caldwell, Jon‐Paul Maria, Nabil D. Bassim   +7 more
wiley   +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

Wear-Resistant Boronizing for 17-4PH Components of Fluid Pump

Metals
The fluid pump was the key component of the formation tester; the pump cylinder, piston, and piston rod of the fluid pump often suffer from wear scratches and seal failure, which greatly reduces the service reliability of the instrument.
Yongchao Chen, Guoming Chen, Chang Du, Kang Liu   +3 more
doaj   +1 more source

Ultrafast Thermal Shock Synthesis of CuNiSnLa Medium‐Entropy Metallic Glass for Sustainable Nitrogen Fixation via Plasma‐Coupled Electrocatalysis

Advanced Functional Materials, EarlyView.
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen, Peng‐Jun Deng, Yang Liu, Shenglong Huang, Shuo Sun, Haoxuan Li, Jiajia Lu, Panagiotis Tsiakaras   +7 more
wiley   +1 more source

Application of an improved WallDYN surface model to estimate ITER boronization layer lifetime

Nuclear Materials and Energy
The WallDYN code was developed to model the coupled evolution of the impurity influx onto the first wall, the surface composition and the flux of impurities back into the plasma in fusion devices.
K. Schmid
doaj   +1 more source

Molecular Rotors: From Newtonian Fluids to Functional Materials as Viscosity and Temperature Sensing Tools

Advanced Functional Materials, EarlyView.
Molecular rotors are fluorescent molecules that are sensitive to viscosity and temperature variations in the environment. They exhibit a direct correlation between fluorescence and viscosity within Newtonian fluids. However, this correlation becomes less straightforward in complex systems.
Flavia Di Scala, Alice Briole, Valerii Myndrul, Thomas J. Cleij, Hanne Diliën, Bérengère Abou, Bart van Grinsven   +6 more
wiley   +1 more source

Studies of the boron erosion and deposition in shadowed areas in EAST

Nuclear Fusion
Boronization is a widely employed technique for oxygen gettering and impurity suppression. It is expected to be an initial routine wall conditioning method for tungsten (W) plasma-facing components (PFCs) in ITER.
Yuming Liu, Rong Yan, Lei Mu, Chuannan Xuan, Baoguo Wang, Yuqi Sheng, Zichao Lin, Ziqiang Zhou, Dahuan Zhu, Andrey Litnovsky, Junling Chen   +10 more
doaj   +1 more source

Ultrathin boron layer (a few nm to 100 nm) diagnostics on tungsten substrates via spatiotemporally resolved picosecond LIBS in a vacuum

Nuclear Materials and Energy
The impact of the thickness and uniformity of boron (B) layer deposited by the boronization process, as well as the understanding of the layer’s lifetime and oxygen gettering effectivity, remains uncertain and real time diagnosis is required in future ...
Huace Wu, Rongxing Yi, Sebastijan Brezinsek, Anne Houben, Marcin Rasinski, Rui Ding, Matej Mayer, Gennady Sergienko, Timo Dittmar, Hongbin Ding   +9 more
doaj   +1 more source