Results 101 to 110 of about 1,975,648 (366)

Ground-State Decay Rate for the Zener Breakdown in Band and Mott Insulators

, 2005
Non-linear transport of electrons in strong electric fields, as typified by dielectric breakdown, is re-formulated in terms of the ground-state decay rate originally studied by Schwinger in non-linear QED. We discuss the effect of electron interaction on
C. Zener, C. Zener, Hideo Aoki, L. D. Landau, M. V. Berry, R. Resta, Takashi Oka   +6 more
core   +1 more source

Investigation of Iron‐Aluminide‐Like Phase Composition in Complex Concentrated Fe32Cu12Ni11Ti16Al29 Alloy

Advanced Engineering Materials, EarlyView.
This work reveals the phase composition and quantitative morphology analysis of precipitation‐hardened Fe32Cu12Ni11Ti16Al29 complex‐concentrated alloy. The precipitates are shown to have a high coherency. Morphology transition between sphere, cuboidal, and elongated morphology is observed. Finally, the overaging behavior is captured using microhardness.
Rostyslav Nizinkovskyi, Lukas Hanisch, Georg Hasemann, Puspendu Sahu, Manja Krüger   +4 more
wiley   +1 more source

Avalanches in Breakdown and Fracture Processes

, 1999
We investigate the breakdown of disordered networks under the action of an increasing external---mechanical or electrical---force. We perform a mean-field analysis and estimate scaling exponents for the approach to the instability.
A. A. Griffith, A. Buchel, A. Buchel, A. Garcimartín, A. Guarino, A. H. Thompson, A. Hansen, A. Hansen, A. Petri, Alessandro Vespignani, B. Gutenberg, B. K. Chakrabarti, B. Kahng, B. Suki, C. Maes, C. Unger, C. Unger, D. Heerman, D. Sornette, F. Tzschichholz, G. Caldarelli, G. Cannelli, G. Vasconcelos, H. A. Daniels, H. Eugene Stanley, J. B. Rundle, J. B. Rundle, J. B. Rundle, J. D. Gunton, J. P. Sethna, J. Weiss, K. Dahmen, K.-T. Leung, K.-T. Leung, L. de Arcangelis, L. de Arcangelis, L. Golubovic, L. Golubovic, L. Monette, L. Monette, M. Acharaya, M. Acharaya, M. Kloster, P. C. Hemmer, P. Diodati, P. Duxbury, P. Ray, Purusattam Ray, R. Englman, R. L. B. Selinger, R. L. B. Selinger, S. Ciliberto, S. Field, S. Kirkpatrik, S. L. Phoenix, S. Roux, S. Zapperi, S. Zapperi, S. Zapperi, Stefano Zapperi, T. Ray, V. I. Räisänen, W. H. Press, Z.-G. Wang   +63 more
core   +1 more source

Field Analysis of SF(6) Gas Insulated Cables and Its Application to Spacer Design [PDF]

, 1974
This paper describes the spacer design for SF(6) gas insulated cables. The maximum electric stress within the cable is calculated by a numerical method, and it is recognized that the breakdown voltage depends linearly on the calculated values.
Itaka, Koshi, Misaki, Takayoshi, Yamamoto, Hideki   +2 more
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Development of Grease Film Breakdown Observing Device

Tribology Online, 2008
The paper describes a newly developed smart device, which can detect the dielectric breakdown of the grease elastohydrodynamic film formed between a steel ball loaded against a glass disc due to electric discharge, while observing the shape and thickness
Kenji Sunahara, Shinji Yamashita, Masaharu Yamamoto, Michiaki Ikeda, Hiroshi Nishikawa, Kenji Matsuda, Motohiro Kaneta   +6 more
doaj   +1 more source

Why isolated streamer discharges hardly exist above the breakdown field in atmospheric air

, 2013
We investigate streamer formation in the troposphere, in electric fields above the breakdown threshold. With fully three-dimensional particle simulations, we study the combined effect of natural background ionization and of photoionization on the ...
Ebert, U., Sun, A. B., Teunissen, J.
core   +1 more source

Achieving Large and Anisotropic Spin‐Mediated Thermal Transport in Textured Quantum Magnets

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
An advanced solvent‐cast cold pressing method is developed to synthesize highly textured quantum magnets. By aligning spin chains in Ca2CuO3 perpendicular to the pressing direction, a spin‐mediated thermal conductivity of 10 ± 1 W m⁻¹ K⁻¹ is achieved, the highest reported for polycrystalline quantum materials.
Shucheng Guo, Xue Bai, Boqun Liang, Thomas Hoke, Ming Liu, Rafal E. Dunin‐Borkowski, Xi Chen   +6 more
wiley   +1 more source

Surface Analysis of OFE-Copper X-Band Accelerating Structures and Possible Correlation to RF Breakdown Events

, 2003
X-band accelerator structures meeting the Next Linear Collider (NLC) design requirements have been found to suffer vacuum surface damage caused by radio frequency (RF) breakdown, when processed to high electric-field gradients.
E. L. Garwin, F. Le Pimpec, F. Marcelja, K. Adamson, Prut V. V., R. E. Kirby, S. E. Harvey, Singh B., Vorob’ev E. V.   +8 more
core   +2 more sources

Ultrahigh Piezoelectricity in Truss‐Based Ferroelectric Ceramics Metamaterials

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By leveraging the unique combination of polarization direction and loading state, ultrahigh piezoelectricity is achieved through careful tuning of the relative density and scaling ratio in truss‐based ferroelectric metamaterials. This approach enables the simultaneous realization of extremely high piezoelectric constants and ultralow dielectric ...
Jiahao Shi, Kang Ju, Haoyu Chen, Valérie Orsat, Agus P. Sasmito, Ali Ahmadi, Abdolhamid Akbarzadeh   +6 more
wiley   +1 more source