Results 61 to 70 of about 320,999 (343)

Novel TCAD oriented definition of the off-state breakdown voltage in Schottky-gate FETs: a 4H SiC MESFET case study [PDF]

, 2008
Physics-based breakdown voltage optimization in Schottky-barrier power RF and microwave field-effect transistors as well as in high-speed power-switching diodes is today an important topic in technology computer-aided design (TCAD).
Bonani, Fabrizio, Furno, M., Ghione, Giovanni   +2 more
core   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Electrical Breakdown of Excitonic Insulators

Physical Review X
We propose a new electrical breakdown mechanism for exciton insulators in the BCS limit, which differs fundamentally from the Zener breakdown mechanism observed in traditional band insulators. Our new mechanism results from the instability of the many-body ground state for exciton condensation, caused by the strong competition between the polarization ...
Yuelin Shao, Xi Dai
openaire   +3 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Quantum Response at Finite Fields and Breakdown of Chern Numbers

, 1999
We show that the response to an electric field, in models of the Integral Quantum Hall effect, is analytic in the field and has isolated essential singularity at zero field.
Bellissard J, Berry M V, Berry M V, Cage M E, Casati G, Cycon H L, Ebert G, Ferrari R, J E Avron, Kato T, Kawaji S, Klein M, Knox R S, Kons Z, Okuno T, Stone M, Thouless D J, Tsemekhamn V, von Neumann J, Z Kons   +19 more
core   +1 more source

Fine tuning the electro-mechanical response of dielectric elastomers [PDF]

, 2018
We propose a protocol to model accurately the electromechanical behavior of dielectric elastomer membranes using experimental data of stress-stretch and voltage-stretch tests.
Destrade, Michel, Lu, Tongqing, Zurlo, Giuseppe   +2 more
core   +2 more sources

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Electrical breakdown in vacuum

IEEE Transactions on Electron Devices, 1965
Imperial Users ...
Goldstone, Leslie, Goldstone, Leslie
openaire   +3 more sources

Investigation on different materials after pulsed high field conditioning and low-energy H- irradiation

Frontiers in Physics
During operation, the radio-frequency quadrupole (RFQ) of the LINAC4 at CERN is exposed to high electric fields, which can lead to vacuum breakdown. It is also subject to beam loss, which can cause surface modification, including blistering, which can ...
C. Serafim, C. Serafim, R. Peacock, S. Calatroni, F. Djurabekova, A. T. Perez Fontenla, W. Wuensch, S. Sgobba, A. Grudiev, A. Lombardi, E. Sargsyan, S. Ramberger, G. Bellodi   +12 more
doaj   +1 more source

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