Results 51 to 60 of about 854 (179)

Barocaloric effect in ferroelastic fluorides and oxyfluorides [PDF]

Ferroelectrics, 2016
Using the data about the temperature - pressure phase diagram and the phase transition entropy at ambient and high pressure, intensive and extensive barocaloric effects were analyzed in the region of single and successive order-disorder phase transitions in fluorides and oxyfluorides with the elpasolites-cryolite structure.
Flerov, I. N., Gorev, M. V., Bogdanov, E. V., Laptash, N. M.   +3 more
openaire   +3 more sources

Giant barocaloric effects over a wide temperature range in superionic conductor AgI. [PDF]

, 2017
Current interest in barocaloric effects has been stimulated by the discovery that these pressure-driven thermal changes can be giant near ferroic phase transitions in materials that display magnetic or electrical order.
Aznar, Araceli, Barrio, María, Cazorla, Claudio, Errandonea, Daniel, Lloveras, Pol, Mathur, Neil D, Mañosa, Lluís, Moya, Xavier, Planes, Antoni, Romanini, Michela, Tamarit, Josep-Lluís   +10 more
core   +3 more sources

A REVIEW OF MECHANOCALORIC REFRIGERATION DEVICES FROM 2012 TO 2020 [PDF]

, 2022
Solid-State room temperature refrigeration devices have been reported extensively in the last decades with a focus on magnetocaloric effect materials, a thermal response to an applied magnetic field in a solid refrigerant.
Colman, F. C., Foleis, G. L., Oliveira, J. C. D. de   +2 more
core   +3 more sources

On the efficiency of caloric materials in direct comparison with exergetic grades of compressors

JPhys Energy, 2023
Efficiency improvements in heat pump can drastically reduce global energy demand. Caloric heat pumps are currently being investigated as a potentially more efficient alternative to vapor compression systems.
Jan Schipper, David Bach, Stefan Mönch, Christian Molin, Sylvia Gebhardt, Jürgen Wöllenstein, Olaf Schäfer-Welsen, Christian Vogel, Robin Langebach, Kilian Bartholomé   +9 more
doaj   +1 more source

Advanced materials for solid-state refrigeration

, 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, Manosa, Lluis, Planes, Antoni   +2 more
core   +1 more source

Elastocaloric response of PbTiO3 predicted from a first-principles effective Hamiltonian [PDF]

, 2015
A first-principles based effective Hamiltonian is used within a molecular dynamics simulation to study the elastocaloric effect in PbTiO3. It is found that the transition temperature is a linear function of uniaxial tensile stress.
Barr, Jordan A., Beckman, Scott P., Nishimatsu, Takeshi   +2 more
core   +1 more source

Multisite Exchange-Enhanced Barocaloric Response in Mn_{3}NiN

Physical Review X, 2018
We study the barocaloric effect (BCE) in the geometrically frustrated antiferromagnet Mn_{3}NiN across the Néel transition temperature. Experimentally, we find a larger barocaloric entropy change by a factor of 1.6 than that recently discovered in the ...
David Boldrin, Eduardo Mendive-Tapia, Jan Zemen, Julie B. Staunton, Thomas Hansen, Araceli Aznar, Josep-Lluís Tamarit, Maria Barrio, Pol Lloveras, Jiyeob Kim, Xavier Moya, Lesley F. Cohen   +11 more
doaj   +1 more source

The barocaloric effect: A Spin-off of the Discovery of High-Temperature Superconductivity

, 2017
Some key results obtained in joint research projects with Alex M\"uller are summarized, concentrating on the invention of the barocaloric effect and its application for cooling as well as on important findings in the field of high-temperature ...
B Hälg, B Hälg, C Kittel, D Rubio Temprano, D Rubio Temprano, D Rubio Temprano, H Heer, H Wada, J Mesot, J Röhler, JB Torrance, JF Scott, KA Müller, KA Müller, KA Müller, M D’Iorio, P Fischer, P Lacorre, PS Häfliger, RJ Birgeneau, RK Kremer, RT Harley, S Rosenkranz, T Strässle, T Strässle, T Strässle, T Strässle, V Hizhnyakov, Z Hossain   +28 more
core   +1 more source

Colossal barocaloric effects near room temperature in plastic crystals of neopentylglycol [PDF]

Nature Communications, 2019
AbstractThere is currently great interest in replacing the harmful volatile hydrofluorocarbon fluids used in refrigeration and air-conditioning with solid materials that display magnetocaloric, electrocaloric or mechanocaloric effects. However, the field-driven thermal changes in all of these caloric materials fall short with respect to their fluid ...
Lloveras, P, Aznar, A, Barrio, M, Negrier, Ph, Popescu, C, Planes, A, Mañosa, L, Stern-Taulats, E, Avramenko, A, Mathur, ND, Moya, X, Tamarit, J-Ll   +11 more
openaire   +8 more sources

Reversible and irreversible colossal barocaloric effects in plastic crystals [PDF]

Journal of Materials Chemistry A, 2020
Colossal barocaloric effects were observed in four species of plastic crystals, and two displayed the reversibility required for cooling devices.
Araceli Aznar, Pol Lloveras, María Barrio, Philippe Negrier, Antoni Planes, Lluís Mañosa, Neil D. Mathur, Xavier Moya, Josep-Lluís Tamarit   +8 more
openaire   +5 more sources