Results 11 to 20 of about 249 (137)

Understanding colossal barocaloric effects in plastic crystals [PDF]

Nature Communications, 2020
Colossal barocaloric effects with high entropy changes is reported in plastic crystal neopentylglycol, while microscopic mechanism needs to be further explored.
F. B. Li, M. Li, X. Xu, Z. C. Yang, H. Xu, C. K. Jia, K. Li, J. He, B. Li, Hui Wang   +9 more
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Colossal barocaloric effects near room temperature in plastic crystals of neopentylglycol [PDF]

Nature Communications, 2019
There is great interest, in refrigeration technology, in replacing harmful volatile hydrofluorocarbons with solid materials. Here the authors show that commercially available plastic crystal neopentylglycol displays colossal and reversible barocaloric ...
P. Lloveras, A. Aznar, M. Barrio, Ph. Negrier, C. Popescu, A. Planes, L. Mañosa, E. Stern-Taulats, A. Avramenko, N. D. Mathur, X. Moya, J.-Ll. Tamarit   +11 more
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Barocaloric Properties of Thermoplastic Elastomers

Frontiers in Energy Research, 2022
Solid-state refrigeration represents a promising alternative to vapor compression refrigeration systems which are inefficient, unreliable, and have a high global warming potential. However, several solid-state cooling technologies—including those relying
Naveen Weerasekera, Kameswara Pavan Kumar Ajjarapu, Kavish Sudan, Gamini Sumanasekera, Kunal Kate, Bikram Bhatia   +5 more
doaj   +2 more sources

Giant barocaloric effect in commercial polyurethane

Polymer Testing, 2021
Barocaloric effect in polymers is barely recognized and limited to a few reports in the literature. This effect consists of a thermal response of the material when a hydrostatic pressure is applied, allowing its application in the field of solid-state ...
Jean Rodrigo Bocca, Silvia L. Favaro, Cleber S. Alves, Alexandre M.G. Carvalho, Jader R. Barbosa, Jr., Andressa dos Santos, Flávio C. Colman, Wagner A. dos S. Conceição, Christian Caglioni, Eduardo Radovanovic   +9 more
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Giant barocaloric effects in formamidinium iodide [PDF]

APL Materials, 2022
Barocaloric effect is the thermal response of materials to the external pressures, which provides a promising alternative to the current vapor-compression refrigeration. The effect has been widely observed in a variety of materials. Here, we report giant
Chenyang Yu, Jianqi Huang, Ji Qi, Peng Liu, Da Li, Teng Yang, Zhidong Zhang, Bing Li   +7 more
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Electrocaloric and barocaloric effects in CsH_2PO_4 ferroelectric

Condensed Matter Physics, 2022
To investigate the caloric effects in the CsH_2PO_4 ferroelectric, a modified pseudospin model of this crystal is used, which takes into account the dependence of the parameters of interaction between pseudospins on lattice strains.
A. S. Vdovych, R. R. Levitskii, I. R. Zachek   +2 more
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Giant Inverse Barocaloric Effect of Ferroelectric Salts Driven by Negative Thermal Expansion

Advanced Physics Research
Refrigeration technologies based on the barocaloric effect have garnered significant attention, while their potential applications are limited by the poor performance of current materials.
Yin Dai, Menghao Wu
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Giant multiple caloric effects in charge transition ferrimagnet [PDF]

Scientific Reports, 2021
Caloric effects of solids can provide us with innovative refrigeration systems more efficient and environment-friendly than the widely-used conventional vapor-compression cooling systems.
Yoshihisa Kosugi, Masato Goto, Zhenhong Tan, Daisuke Kan, Masahiko Isobe, Kenji Yoshii, Masaichiro Mizumaki, Asaya Fujita, Hidenori Takagi, Yuichi Shimakawa   +9 more
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Colossal Reversible Barocaloric Effects in a Plastic Crystal Mediated by Lattice Vibrations and Ion Diffusion [PDF]

Advanced Science
Solid‐state methods for cooling and heating promise a sustainable alternative to current compression cycles of greenhouse gases and inefficient fuel‐burning heaters.
Ming Zeng, Carlos Escorihuela‐Sayalero, Tamio Ikeshoji, Shigeyuki Takagi, Sangryun Kim, Shin‐ichi Orimo, María Barrio, Josep‐Lluís Tamarit, Pol Lloveras, Claudio Cazorla, Kartik Sau   +10 more
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Landau theory of barocaloric plastic crystals

JPhys Energy
We present a minimal Landau theory of plastic-to-crystal phase transitions in which the key components are a multipole-moment order parameter that describes the orientational ordering of the constituent molecules, coupling between such order parameter ...
R Marín-Delgado, X Moya, G G Guzmán-Verri   +2 more
doaj   +4 more sources