ELECTROCALORIC POLYMERS: DIFFERENT ELECTRIC FIELD CYCLES TO INCREASE THEIR EFFICIENCY

机译：电热聚合物：不同的电场循环可提高其效率

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The evaluation of electrocaloric properties of a material can be achieved by two methods: either by thernindirect method which uses Maxwell relations to link the electrocaloric effect to the polarization versusrntemperature or by the direct measurement of the heat flux response to an electric field variation. In this paperrnwe show how the heat flux method is able to evaluate the efficiency of different types of electric field cyclesrnapplied to a ferroelectric material with hysteresis. We present experiments on the polymer P(VDF-TrFE)rn70/30 and discuss how to improve the cooling power in connection with respect to the non zero electricalrnconductivity of the material.

机译：可以通过两种方法来评估材料的电热性能：通过间接方法（使用麦克斯韦关系将电热效应与极化相对温度联系起来）或通过直接测量对电场变化的热通量响应。在本文中，我们展示了热通量方法如何能够评估应用于具有滞后作用的铁电材料的不同类型的电场循环的效率。我们目前在聚合物P（VDF-TrFE）rn70 / 30上进行实验，并讨论如何相对于材料的非零电导率来提高冷却功率。

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来源
《7th international conference on magnetic refrigeration at room temperature》|2016年|1-4|共4页
会议地点 Turin(IT)
作者
Sébastien Pruvost; Vittorio Basso; Lauric Garbuio; Afef Kedous-Lebouc; Morgan Almanza; Jean-François Gérard;
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作者单位

Univ. Lyon, INSA Lyon, UMR CNRS 5223, IMP Ingénierie des Matériaux Polymères,F-69621 VILLEURBANNE, France E-mail: sebastien.pruvost@insa-lyon.fr;

Istituto Nazionale di Ricerca Metrologica INRIM, Strada delle Cacce 91, 10135 Torino, Italy;

G2Elab, Univ. Grenoble Alpes /CNRS, F-38000 Grenoble;

G2Elab, Univ. Grenoble Alpes /CNRS, F-38000 Grenoble;

Univ. Paris Saclay, SATIE, F-94230 Cachan, France;

Univ. Lyon, INSA Lyon, UMR CNRS 5223, IMP Ingénierie des Matériaux Polymères,F-69621 VILLEURBANNE, France;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Electrocaloric effect; ferroelectric polymers; electric field cycles; cooling efficiency;

机译：电热效应；铁电聚合物；电场周期；冷却效率;

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1. Towards electrocaloric heat pump-A relaxor ferroelectric polymer exhibiting large electrocaloric response at low electric field [J] . Chen Xin, Xu Wenhan, Lu Biao, Applied Physics Letters . 2018,第11期

机译：迈向电热热泵-一种弛豫铁电聚合物，在低电场下表现出大的电热响应
2. Investigation of the electrocaloric effect in ferroelectric polymer film through direct measurement under alternating electric field [J] . Matsushita Yuji, Yoshimura Takeshi, Kiriya Daisuke, Annales de l'I.H.P . 2020,第4期

机译：交替电场直接测量通过直接测量对铁电聚合物膜电热量的研究
3. Temperature–electric field hysteresis loop of electrocaloric effect in ferroelectricity—Direct measurement and analysis of electrocaloric effect. I [J] . Wang Jinfei, Yang Tongqing, Wei Kun, Applied Physics Letters . 2013,第15期

机译：铁电中电热效应的温度-电场磁滞回线—电热效应的直接测量和分析。一世
4. ELECTROCALORIC POLYMERS: DIFFERENT ELECTRIC FIELD CYCLES TO INCREASE THEIR EFFICIENCY [C] . Sébastien Pruvost, Vittorio Basso, Lauric Garbuio, International conference on magnetic refrigeration at room temperature . 2016

机译：电热聚合物：不同的电场周期，以提高其效率
5. The Application of Dielectric and Electrocaloric Cooling Devices Based on Dielectric Polymers [D] . Zhang, Tian. 2019

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7. Self-heating of relaxor and ferroelectric ceramics during electrocaloric field cycling [O] . Andraž Bradeško, Ana Hedl, Lovro Fulanović, 2019

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8. Understanding the Scientific Basis of Electrocaloric Effect in Defects Modified Ferroelectric Polymers. [R] . Zhu, L., Zhang, Q. 2014

机译：理解缺陷修饰铁电聚合物电热效应的科学基础。

ELECTROCALORIC POLYMERS: DIFFERENT ELECTRIC FIELD CYCLES TO INCREASE THEIR EFFICIENCY

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