Results 101 to 110 of about 630,904 (297)

Design and Simulation of Elastocaloric Refrigerator Based on Ni-Ti Plate

open access: yesZhileng xuebao, 2022
Elastocaloric cooling is based on the phase transition of elastocaloric materials and is driven by uniaxial stress. Elastocaloric cooling technology affords high theoretical refrigeration efficiency and does not result in greenhouse effects; hence, it ...
Chen Yanliang   +4 more
doaj  

History dependence of peak effect in CeRu$_2$ and V$_3$Si: an analogy with the random field Ising systems

open access: yes, 2000
We present results of transport measurements showing distinct path dependence of the electrical resistance in the superconducting vortex state of single crystal samples of CeRu$_2$ and V$_3$Si.
Chaddah, P.   +4 more
core   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi   +7 more
wiley   +1 more source

An electrocaloric device demonstrator for solid-state cooling

open access: yesEPL (Europhysics Letters), 2013
A prototype device was designed to demonstrate electrocaloric cooling of Pb(Mg1/3Nb2/3)O3-PbTiO3 70/30 single crystals as active cooling elements. The test section was devised to investigate potential bulk cooling effects of the single-crystal materials under repeated electric-field cycles. Despite the low electrocaloric temperature changes measured by
Chukka, Rami   +3 more
openaire   +3 more sources

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

open access: yesAdvanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert   +6 more
wiley   +1 more source

State-of-the-art and Prospects of Elastocaloric Cooling Technology

open access: yesZhileng xuebao, 2018
Elastocaloric cooling is a solid-state cooling technology based on the latent heat associated with the stress-induced phase transformation in elastocaloric materials.
Qian Suxin   +3 more
doaj  

Quantum Monte Carlo simulations of a giant {Ni21Gd20} cage with a S = 91 spin ground state

open access: yesNature Communications, 2018
Paramagnetic metal clusters with large ground spin states often possess attractive magnetic behaviors for information storage or solid-state cooling applications.
Wei-Peng Chen   +7 more
doaj   +1 more source

Laser frequency stabilization using a commercial wavelength meter

open access: yes, 2018
We present the characterization of a laser frequency stabilization scheme using a state-of-the-art wavelength meter based on solid Fizeau interferometers. For a frequency-doubled Ti-sapphire laser operated at 461 nm, an absolute Allan deviation below $10^
Chen, Peng   +7 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

On-Chip Cooling by Heating with Superconducting Tunnel Junctions

open access: yes, 2017
Heat management and refrigeration are key concepts for nanoscale devices operating at cryogenic temperatures. The design of an on-chip mesoscopic refrigerator that works thanks to the input heat is presented, thus realizing a solid state implementation ...
Giazotto, Francesco   +2 more
core   +1 more source

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