Results 101 to 110 of about 666,451 (346)

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Superior energy storage capacity of polymer-based bilayer composites by introducing 2D ferroelectric micro-sheets

Nature Communications
Dielectric polymer capacitors suffer from low discharged energy density and efficiency due to their low breakdown strength, small dielectric constant and large electric hysteresis.
Zhenhao Fan, Jian Dai, Yuyan Huang, Hang Xie, Yitao Jiao, Wenfeng Yue, Fu Huang, Yuqun Deng, Dawei Wang, Qingfeng Zhang, Yunfei Chang   +10 more
doaj   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Experimental Study on Trap Characteristics of Nano-Montmorillonite Composite Pressboards

Energies, 2018
To improve space charge properties and the breakdown strength of insulation pressboard, nano-modifications with nano-montmorillonite fillers are developed using nanocomposite techniques in this study.
Qingguo Chen, Jiaxin Sun, Minghe Chi, Jinfeng Zhang, Peng Tan   +4 more
doaj   +1 more source

Cyclic Injection to Enhance Hydraulic Fracturing Efficiency: Insights from Laboratory Experiments

Geofluids, 2020
In hydraulic fracturing applications, there is substantial interest to reduce the formation breakdown pressure. Previous research results show that the cyclic injection method can be used to reduce that pressure.
Hao Kang, Jincai Zhang, Xin Fan, Zhiwen Huang   +3 more
doaj   +1 more source

AC Breakdown Characteristics of LDPE in the Presence of Crosslinking By-products.

, 2011
LDPE films of 50?m thick were soaked into crosslinking byproducts which are acetophenone, ?-methylstyrene and cumyl alcohol. The samples were used to perform the breakdown strength (Eb) of the LDPE with the byproducts chemical reside in the sample.
Chen, G, Hussin, N
core  

Anderson localization of polaron states

, 2002
Using the vanishing of the typical polaron tunneling rate as an indicator of the breakdown of itinerancy, we study the localization of polaron states in a generic model for a disordered polaronic material.
A. Georges, A.J. Millis, A.S. Alexandrov, D.J. Thouless, E. Miranda, F.X. Bronold, Franz X. Bronold, G. Wellein, G. Wellein, H. DeRaedt, H. Fehske, H. Löwen, H. Sumi, Holger Fehske, J. Boncă, J. Ranninger, J.H. Schön, L.D. Landau, M. Capone, M.H. Cohen, P.A. Lee, P.E. Parris, P.W. Anderson, P.W. Anderson, R. Abou-Chacra, R.J. Elliot, S. Ciuchi, V. Dobrosavljević, V. Dobrosavljević, W. Stephan   +29 more
core   +2 more sources

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Effect of TiO2 size factor on the electrical properties of polyethylene matrix dielectrics

Results in Physics, 2018
In this study, the TiO2 nanoparticles and TiO2 nanofibers were chosen as inorganic fillers to dope into the linear low density polyethylene (LLDPE).
Qingguo Chi, Xubin Wang, Wei Zhao, Changhai Zhang, Tiandong Zhang, Xuan Wang, Qingquan Lei   +6 more
doaj   +1 more source

Jamming under tension in polymer crazes

, 2002
Molecular dynamics simulations are used to study a unique expanded jammed state. Tension transforms many glassy polymers from a dense glass to a network of fibrils and voids called a craze.
C.-h. Liu, E. J. Kramer, E. J. Kramer, Jörg Rottler, L. J. Fetters, M. Doi, M. Pütz, Mark O. Robbins, R. A. L. Jones   +8 more
core   +1 more source