Results 121 to 130 of about 858,174 (293)

Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories

Advanced Engineering Materials, EarlyView.
A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi, Stephan Roth, Christos G. Aneziris, Bjoern Kiefer   +3 more
wiley   +1 more source

Weak localization of disordered quasiparticles in the mixed superconducting state

, 1999
Starting from a random matrix model, we construct the low-energy effective field theory for the noninteracting gas of quasiparticles of a disordered superconductor in the mixed state.
A. Altland, A. Altland, A. Altland, C. Cassanello, C. Kübert, D. Serban, D.H. Friedan, F.J. Dyson, F.J. Wegner, F.J. Wegner, G. Blatter, G.E. Volovik, H. Levine, J.J.M. Verbaarschot, K. Krishana, K.B. Efetov, K.D. Usadel, K.M. Frahm, M. R. Zirnbauer, M.J. Graf, M.R. Zirnbauer, N.P. Ong, P.A. Lee, P.A. Lee, P.W. Brouwer, R. Bundschuh, R. Bundschuh, R. Gade, R.B. Laughlin, S.R. Bahcall, T. Senthil   +30 more
core   +1 more source

A Topology Optimization Framework for the Inverse Design of Nonlinear Mechanical Metamaterials

Advanced Engineering Materials, EarlyView.
This work uses topology optimization to design unit cells for mechanical metamaterials with a prescribed nonlinear stress–strain response. The framework adds contact and postbuckling modeling to synthesize microstructures for three highly nonlinear responses, including pseudoductile behavior, monostable with snap‐through buckling, and bistable ...
Charlie Aveline, Matthew Santer, Robert Hewson   +2 more
wiley   +1 more source

Self-Energy approximation for the running coupling constant in thermal ϕ 4 theory using Imaginary Time Formalism

Journal of High Energy Physics
We investigate the temperature dependence of the mass scale, running coupling constant, and running mass in thermal ϕ 4 theory using the Imaginary Time Formalism (ITF).
K. Arjun, A. M. Vinodkumar, Vishnu Mayya Bannur, Munshi G. Mustafa   +3 more
doaj   +1 more source

Schwinger-Keldysh formalism. Part II: thermal equivariant cohomology

Journal of High Energy Physics, 2017
Causally ordered correlation functions of local operators in near-thermal quantum systems computed using the Schwinger-Keldysh formalism obey a set of Ward identities.
Felix M. Haehl, R. Loganayagam, Mukund Rangamani   +2 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Relativistic quantum Otto engine: instant work extraction from a quantum field

Journal of High Energy Physics
In this study, we carry out a non-perturbative approach to a quantum Otto engine, employing an Unruh-DeWitt particle detector to extract work from a quantum Klein-Gordon field in an arbitrary globally hyperbolic curved spacetime.
Kensuke Gallock-Yoshimura
doaj   +1 more source

Introduction to thermal field theory

, 1997
Within the next few years experiments at RHIC and the LHC will seek to create in the laboratory a quark-gluon plasma, the phase of matter in which the Universe was initially created. It is believed that the plasma will survive long enough to reach thermal equilibrium.
openaire   +2 more sources

Production of MgO/TiC Composites From MgO‐C Recyclates Using Spark Plasma Sintering

Advanced Engineering Materials, EarlyView.
Using the spark plasma sintering technique, MgO/TiC composites are manufactured from recycled MgO‐C refractories stemming from the steel production that were mixed with titanium powder. This article shows, how the size of the Ti grains and their distribution in the powder mixture affect the local carbon concentration in TiC.
Jiayan Yu, Christian Schimpf, Stefan Martin, David Rafaja   +3 more
wiley   +1 more source