کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5458065 | 1516163 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Giant electrocaloric effect in compositionally graded PZT multilayer thin films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The multiphase coexisting of compositionally graded PbZrxTi1-xO3 multilayer thin films were fabricated using sol-gel method. The giant electrocaloric effect (ECE) has been obtained through regulating the growth sequence of the multilayer thin films. At room temperature (at 298Â K), ÎT values of up graded multilayer and down multilayer thin films are 9.1Â K (applied electric field EÂ =Â 755Â kV/cm) and 7.3Â KÂ (EÂ =Â 930Â kV/cm), respectively. In addition, both of the films exhibit outstanding ECE at higher temperature, ÎT values of 17.9Â K (at 453Â K) and 26.8Â K (at 393Â K) are also obtained for up graded multilayer and down multilayer thin films. The results indicate that the compositionally graded multilayer thin films with a giant ECE could be a potential candidate for the application in cooling devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 731, 15 January 2018, Pages 489-495
Journal: Journal of Alloys and Compounds - Volume 731, 15 January 2018, Pages 489-495
نویسندگان
Tiandong Zhang, Weili Li, Yang Yu, Miao Wang, Jun He, Weidong Fei,