Results 51 to 60 of about 15,090,400 (248)

Elastocaloric effect characterization of a NiTi tube to be applied in a compressive cooler

open access: yesAIP Advances, 2022
In this article, the elastocaloric effect of a commercial superelastic NiTi shape memory alloy (SMA) tube (with an outer diameter of 5 mm and wall thickness of 1 mm) to be applied in a compressive cooler was measured and analyzed.
Siyuan Cheng   +6 more
doaj   +1 more source

Reduced dimensions elastocaloric materials: A route towards miniaturized refrigeration

open access: yesMaterials & Design, 2021
Elastocaloric cooling technology has obtained huge attraction over vapor compression systems because it is more efficient with negligible environmental impact.
Muhammad Imran, Xuexi Zhang
doaj   +1 more source

Advanced Elastocaloric Cooling Devices Based on Shape Memory Alloy Films [PDF]

open access: yes, 2020
Unsere moderne Gesellschaft ebenso wie die zunehmend technologisierte Wirtschaft sind ohne Kühlung praktisch undenkbar. Ganze Industriezweige, wie beispielsweise die Lebensmittel- oder Medizinbranche, sind auf die zuverlässige Verfügbarkeit von Kälte im ...
Brüderlin, Florian
core   +2 more sources

Giant elastocaloric effect and exceptional mechanical properties in an all-d-metal Ni–Mn–Ti alloy: Experimental and ab-initio studies

open access: yesMaterials & Design, 2019
Exploring novel materials with superior elastocaloric effect (eCE) is a central issue for the development of eCE refrigeration technique. In this work, we report a giant adiabatic temperature change ΔTad of −20.4 K in the 〈100〉-textured all-d-metal ...
Hai-Le Yan   +10 more
doaj   +1 more source

Metallic Bond Induces Soft Phonon Mode and Anharmonicity in Heusler Alloy. [PDF]

open access: yesAdv Sci (Weinh)
The fruitful functional performances of metastable Heusler alloys originate from the martensitic transformation driven by the transverse acoustic soft phonon mode, regulated by anharmonicity. This study reveals that the long‐range interaction rooted in metallic bonding between spin‐down d‐orbitals of Ni─Ni induces phonon softening and significant ...
Liu HX   +6 more
europepmc   +2 more sources

Advanced materials for solid-state refrigeration

open access: yes, 2013
Recent progress on caloric effects are reviewed. The application of external stimuli such as magnetic field, hydrostatic pressure, uniaxial stress and electric field give rise respectively to magnetocaloric, barocaloric, elastocaloric and electrocaloric ...
Acet, Mehmet   +2 more
core   +1 more source

Giant barocaloric effect in all-d-metal Heusler shape memory alloys [PDF]

open access: yes, 2019
We have studied the barocaloric properties associated with the martensitic transition of a shape memory Heulser alloy Ni50Mn31.5Ti18.5 which is composed of all-d-metal elements.
Aznar Luque, Araceli   +9 more
core   +2 more sources

Residual stress induced stabilization of martensite phase and its effect on the magneto-structural transition in Mn rich Ni-Mn-In/Ga magnetic shape memory alloys

open access: yes, 2015
The irreversibility of the martensite transition in magnetic shape memory alloys (MSMAs) with respect to external magnetic field is one of the biggest challenges that limits their application as giant caloric materials.
Acet, M.   +7 more
core   +1 more source

Broadband dielectric spectroscopy of Pb-based relaxor ferroelectric (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 with intermediate random fields [PDF]

open access: yes, 2017
This work is devoted to the investigation of the broad band dielectric spectra of 0.83PbMg1/3Nb2/3O3-0.17PbTiO3 (PMN-17PT) single crystals which have intermediate random fields.
Banys Jūras   +3 more
core   +2 more sources

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

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