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Title: Kinetic electrocaloric effect and giant net cooling of lead-free ferroelectric refrigerants

Abstract

The electrocaloric effect of BaTiO{sub 3} multilayer thick film structure was investigated by direct measurement using differential scanning calorimeter. The samples show a giant electrocaloric effect of 0.89 J/g under E=176 kV/cm, which also depends on the varying rate of applied field, following a general power-law relation. Based on the large net-cooling (0.37 J/g) resulting from the difference in the varying rates of rising and falling fields, the kinetic electrocaloric effect provides a solution for the design of refrigeration cycle in ferroelectric microrefrigerator.

Authors:
 [1]; ;  [1]
  1. Department of Mechanical Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon (Hong Kong)
Publication Date:
OSTI Identifier:
21537939
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 108; Journal Issue: 10; Other Information: DOI: 10.1063/1.3511342; (c) 2010 American Institute of Physics; Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM COMPOUNDS; CALORIMETERS; CALORIMETRY; CERAMICS; DESIGN; ELECTRIC CHARGES; FERROELECTRIC MATERIALS; LAYERS; POLARIZATION; REFRIGERANTS; TEMPERATURE DEPENDENCE; THERMOELECTRIC PROPERTIES; THIN FILMS; TITANATES; ALKALINE EARTH METAL COMPOUNDS; DIELECTRIC MATERIALS; ELECTRICAL PROPERTIES; FILMS; FLUIDS; MATERIALS; MEASURING INSTRUMENTS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; WORKING FLUIDS

Citation Formats

Yang, Bai, Key Laboratory of Environmental Fracture, University of Science and Technology Beijing, Ministry of Education, Beijing 100083, Guangping, Zheng, and Sanqiang, Shi. Kinetic electrocaloric effect and giant net cooling of lead-free ferroelectric refrigerants. United States: N. p., 2010. Web. doi:10.1063/1.3511342.
Yang, Bai, Key Laboratory of Environmental Fracture, University of Science and Technology Beijing, Ministry of Education, Beijing 100083, Guangping, Zheng, & Sanqiang, Shi. Kinetic electrocaloric effect and giant net cooling of lead-free ferroelectric refrigerants. United States. https://doi.org/10.1063/1.3511342
Yang, Bai, Key Laboratory of Environmental Fracture, University of Science and Technology Beijing, Ministry of Education, Beijing 100083, Guangping, Zheng, and Sanqiang, Shi. 2010. "Kinetic electrocaloric effect and giant net cooling of lead-free ferroelectric refrigerants". United States. https://doi.org/10.1063/1.3511342.
@article{osti_21537939,
title = {Kinetic electrocaloric effect and giant net cooling of lead-free ferroelectric refrigerants},
author = {Yang, Bai and Key Laboratory of Environmental Fracture, University of Science and Technology Beijing, Ministry of Education, Beijing 100083 and Guangping, Zheng and Sanqiang, Shi},
abstractNote = {The electrocaloric effect of BaTiO{sub 3} multilayer thick film structure was investigated by direct measurement using differential scanning calorimeter. The samples show a giant electrocaloric effect of 0.89 J/g under E=176 kV/cm, which also depends on the varying rate of applied field, following a general power-law relation. Based on the large net-cooling (0.37 J/g) resulting from the difference in the varying rates of rising and falling fields, the kinetic electrocaloric effect provides a solution for the design of refrigeration cycle in ferroelectric microrefrigerator.},
doi = {10.1063/1.3511342},
url = {https://www.osti.gov/biblio/21537939}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 10,
volume = 108,
place = {United States},
year = {2010},
month = {11}
}