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Chinese Journal of Polymer Science 2020年第9期38卷 999-1005,I0008页

作者： William Imamura Erik Oda Usuda Lucas Soares Paixao Nicolau Molina Bom Angelo Marcio Gomes Alexandre Magnus Gomes Carvalho Faculdade de Engenharia Mec(a)nica UNICAMPCEP 13083-860CampinasSPBrazil Universidade Federal de Sāo Paulo UNIFESPCEP 09913-030DiademaSPBrazil Instituto de Física Gleb Wataghin UNICAMPCEP 13083-859CampinasSPBrazil Catalan Institute of Nanoscience and Nanotechnology ICN208860 BelaterraBarcelonaSpain The Institute of Photonic Sciences ICFO08193 CastelldefelsBarcelonaSpain Instituto de Física UFRJCEP 21941-972Rio de JaneiroRJBrazil Departamento de Engenharia Mec(a)nica UEMCEP 87020-900MaringáPRBrazil

Solid-state cooling based on caloric effects is considered a viable alternative to replace the conventional vapor-compression refrigeration *** barocaloric materials,recent results show that elastomers are promising candidates for cooling applications around *** the present paper,we report supergiant barocaloric effects observed in acetoxy silicone rubber—a very popular,low-cost and environmentally friendly *** values of adiabatic temperature change and reversible isothermal entropy change were obtained upon moderate applied pressures and relatively low *** huge barocaloric changes are associated both to the polymer chain rearrangements induced by confined compression and to the first-order structural *** results are comparable to the best barocaloric materials reported so far,opening encouraging prospects for the application of elastomers in near future solid-state cooling devices.

关键词： Solid-state cooling barocaloric effect Elastomer Silicone rubber Crystalline-amorphous transition

Microstructure and giant baro-caloric effect induced by low pressure in Heusler Co_(51)Fe_(1)V_(33)Ga_(15) alloy undergoing martensitic transformation

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Journal of Materials Science & Technology 2021年第14期73卷 76-82页

作者： Kai Liu Hai Zeng Ji Qi Xiaohua Luo Xuanwei Zhao Xianming Zheng Yuan Yuan Changcai Chen Shengcan Ma Ren Xie Bing Li Zhenchen Zhong Jiangxi Key Laboratory for Rare Earth Magnetic Materials and Devices/Institute for Rare Earth Magnetic Materials and Devices(IREMMD) College of Rare EarthsJiangxi University of Science and TechnologyGanzhou341000China School of Materials Science and Engineering Faculty of Materials Metallurgy and ChemistryJiangxi University of Science and TechnologyGanzhou341000China Henan Key Laboratory of Photovoltaic Materials and School of Physics&Electronics Henan UniversityKaifeng475004China Shenyang National Laboratory(SYNL)for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang110016China School of Materials Science and Engineering University of Science and Technology of ChinaHefeiChina Guizhou Province Key Laboratory for Photoelectrics Technology and Application College of PhysicsGuizhou UniversityGuiyang550025China

Solid-state refrigeration based on the magneto-or mechano-caloric effect,including elasto-and barocaloric in ferroic phase transition materials is promising to replace the current vapor compression refrigeration in consideration of environmental-friendliness and ***,both high driven field and small thermal changes in all of these caloric materials hinder the development of solid-state *** we report a giant baro-caloric effect near room temperature induced by a low hydrostatic pressure in Co-based Co_(51)Fe_(1) V_(33)Ga_(15) Heusler *** maximum adiabatic temperature change under the applied pressure change ofΔp=0.1-100 MPa can be as high asΔ_(Tad)^(Max)=7.7 K(Δ_(Tad)^(Max)/Δpreaches up to~7.7 K kbar-1),surpassing theΔ_(Tad)^(Max)/Δpvalue reported hitherto in baro-caloric *** addition,the microstructure is also studied by using the electron *** with the austenite and martensite,the submicron V-rich particles are precipitated in this alloy,which are believed to account for enhancing mechanical properties.

关键词： Solid-state refrigeration barocaloric effect Adiabatic temperature change Isostatic pressure Martensitic transformation Co_(51)Fe_(1)V_(33)Ga_(15)alloy

Waste Tire Rubber-based Refrigerants for Solid-state Cooling Devices

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Chinese Journal of Polymer Science 2020年第7期38卷 769-775,I0007页

作者： Nicolau Molina Born Erik Oda Usuda Mariana da Silva Gigliotti Denílson JoséMarcolino de Aguiar William Imamura Lucas Soares Paixao Alexandre Magnus Gomes Carvalho Catalan Institute of Nanoscience and Nanotechnology(ICN2) 08860BellaterraBarcelonaSpain The Institute of Photonic Sciences(ICFO) 08193CastelldefelsBarcelonaSpain Universidade Federal de Sāo Paulo(UNIFESP) 00972-270DiademaSPBrazil Instituto de Física"Gleb Wataghin" Universidade Estadual de Campinas(UNICAMP)13083-970CampinasSPBrazil Universidade Tecnológica Federal do Paraná(UTFPR) 84017-220Ponta GrossaPRBrazil Faculdade de Engenharia Mec(a)nica Universidade Estadual de Campinas(UNICAMP)13083-860CampinasSPBrazil Departamento de Engenharia Mec(a)nica Universidade Estadual de Maringá(UEM)870-900MaringáPRBrazil

Management of discarded tires is a compelling environmental issue *** there are several approaches developed to recycle waste tire rubbers,their application in solid-state cooling is still *** the high barocaloric potential verified for elastomers,the use of waste tire rubber(WTR)as a refrigerant in solid-state cooling devices is very ***,we investigated the barocaloric effects in WTR and polymer blends made of vulcanized natural rubber(VNR)and WTR,to evaluate its feasibility for solid-state cooling *** adiabatic temperature changes and the isothermal entropy changes reach giant values,as well as the performance parameters,being comparable or even better than most barocaloric materials in ***,pure WTR and WTR-based samples also present a faster thermal exchange than VNR,consisting of an additional advantage of using these discarded ***,the present findings evidence the encouraging perspectives of employing waste rubbers in solid-state cooling based on barocaloric effects,contributing to both the recycling of polymers and the sustainable energy technology field.

关键词： Waste tire rubber Solid-state cooling barocaloric effect Tire recycling Sustainable energy

Giant mechanocaloric materials for solid-state cooling

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Chinese Physics B 2020年第7期29卷 172-181页

作者： Junran Zhang Yixuan Xu Shihai An Ying Sun Xiaodong Li Yanchun Li Multidiscipline Research Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China School of Physical Sciences Beihang UniversityBeijing 100191China

This article reviews the research progress of measurement techniques and materials on the mechanocaloric effect over the past few *** materials can be divided into elastocaloric and barocaloric materials depending on the applied uniaxial stress or hydrostatic *** materials include non-magnetic shape memory alloys,polymers,and rare-earth *** materials include magnetic shape memory alloys,ferroelectric ceramics,superionic conductors,and *** mechanocaloric effects of these classes of materials are systematically compared in terms of the isothermal entropy change and adiabatic temperature *** addition to the thermal effects,other characteristics closely related to the application of mechanocaloric materials are also ***,perspectives for further development of mechanocaloric materials in the solid-state cooling area are discussed.

关键词： mechanocaloric materials elastocaloric effect barocaloric effect solid-state cooling

Mechanocaloric materials for solid-state cooling

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Science Bulletin 2015年第19期60卷 1638-1643页

作者： Binfeng Lu Jian Liu Key Laboratory of Magnetic Materials and Devices Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences

This article reviews the up-to-date progress in mechanocaloric effect and materials near ambient temperature. For elastocaloric materials, we focus on directly measured temperature change and its entropy origin in nonmagnetic and magnetic shape memory alloys. In terms of barocaloric materials, change in magnetic state, volume and shift of transition temperature due to hydrostatic pressure are systematically compared. We propose advantages and challenges of elastocaloric materials for solidstate cooling. Strategies to enhance elastocaloric and mechanical stability under long-term mechanical cycles are presented. Finally, we conclude with an outlook on the prospect of elastocaloric cooling application.

关键词： Elastocaloric effect barocaloric effect Shape memory alloy Entropy