Results 91 to 100 of about 1,543 (298)

Optimization of the refrigerant capacity in multiphase magnetocaloric materials [PDF]

open access: yes, 2011
The refrigerant capacity (RC) of magnetocaloric materials can be enhanced using multiphase materials or composites, which expand the temperature range over which a significant magnetic entropy change can be obtained.
Franco García, Victorino   +9 more
core   +1 more source

Rare‐Earth Yttrium Doping Advances High‐Performance AgSbTe2 Thermoelectrics

open access: yesAdvanced Energy Materials, EarlyView.
Y‐doped AgSbTe2 achieves band and microstructure co‐optimization, with coherent Y‐Ag2Te interfaces enhancing phonon scattering and reducing lattice thermal conductivity to 0.26 W m−1 K−1. Combined with valence‐band broadening and increased carrier concentration, this yields ZT ≈ 2 at 623 K, average ZT = 1.5, and 7.3 % conversion efficiency of a single ...
Lan Li   +11 more
wiley   +1 more source

Refrigerant capacity of austenite in as-quenched and annealed Ni51.1Mn31.2In17.7 melt spun ribbons [PDF]

open access: yes, 2012
"The thermal dependence of the magnetic entropy change (Delta S-M(T)) and refrigerant capacity (RC) of austenite in as-quenched ribbons of chemical composition Ni51.1Mn31.2In17.7 produced by melt spinning at a high cooling rate of 48 ms(-1) is reported ...
C. A. Ross   +8 more
core   +1 more source

Disorder‐Driven Fast Na+ Transport: From Crystalline to Amorphous Networks in the Mixed‐Anion NaTaOxCl6−2x Oxychlorides

open access: yesAdvanced Energy Materials, EarlyView.
Oxygen substitution in NaTaOxCl6‐2x drives structural evolution from isolated [TaCl6]– octahedra, through oxygen‐bridged [Ta2OCl10]2– dimers, toward extended trans‐[TaO2Cl4]3– chain‐like arrangements. At intermediate compositions, zero‐dimensional corner‐sharing motifs are proposed to create a flexible, disordered framework that peaks ionic ...
Justin Leifeld   +17 more
wiley   +1 more source

Controllable magnetic transitions and magnetocaloric effect of Ho1-xTmxNi (0≤x≤0.8) compounds

open access: yesAIP Advances, 2020
Polycrystalline Ho1-xTmxNi (0≤x≤0.8) compounds were successfully prepared by an arc-melting method, and the crystal structure, magnetic properties and magnetocaloric effect (MCE) were investigated in detail.
J. W. Xu   +11 more
doaj   +1 more source

High-entropy bulk metallic glasses as promising magnetic refrigerants

open access: yes, 2015
In this paper, the Ho20Er20Co20Al20RE20 (RE = Gd, Dy, and Tm) high-entropy bulk metallic glasses (HE-BMGs) with good magnetocaloric properties are fabricated successfully. The HE-BMGs exhibit a second-order magnetic phase transition. The peak of magnetic
Huo, Juntao   +8 more
core  

Guidelines for Detecting the Foodborne Antibiotic‐Resistant Bacteria

open access: yesAgriFood: Journal of Agricultural Products for Food, EarlyView.
ABSTRACT Foodborne antibiotic‐resistant bacteria threaten global public health and the economic. Standardized detection methods are crucial for effective prevention and control. Researchers encounter difficulties in choosing suitable techniques due to the variety of available approaches and the intricate nature of resistance mechanisms.
Yuanye Zeng, Fengxia Yang
wiley   +1 more source

Study on Thermomagnetic Convection Characteristics of a Cooling Device Using Magnetic Nano-refrigerant

open access: yesZhileng xuebao, 2014
The experimental system of a cooling device using Fe3O4-R600a as magnetic nano-refrigerant was built up. And the influences of magnetic field distribution, magnetic field intensity, heat load, cooling temperature were discussed. The results show that the
Wu Zhijiang, Yin Shaoyou
doaj  

Materials for Room Temperature Magnetic Refrigeration [PDF]

open access: yes, 2010
Magnetic refrigeration is a cooling method, which holds the promise of being cleaner and more efficient than conventional vapor-compression cooling. Much research has been done during the last two decades on various magnetic materials for this purpose ...
Hansen, Britt Rosendahl
core  

A rotary permanent magnet magnetic refrigerator based on AMR cycle

open access: yes, 2016
Magnetic refrigeration is an emerging, environment-friendly technology based on a magnetic solid that acts as a refrigerant by magneto-caloric effect (MCE). The reference cycle for magnetic refrigeration is AMR (Active Magnetic Regenerative refrigeration)
Greco, A.   +5 more
core   +1 more source

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