کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440943 | 1398241 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multilayer 0.9Pb(Mg1/3Nb2/3)O3-0.1PbTiO3 elements for electrocaloric cooling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Multilayer 0.9Pb(Mg1/3Nb2/3)O3-0.1PbTiO3 elements for electrocaloric cooling Multilayer 0.9Pb(Mg1/3Nb2/3)O3-0.1PbTiO3 elements for electrocaloric cooling](/preview/png/5440943.png)
چکیده انگلیسی
Electrocaloric (EC) cooling elements in the form of multilayers (MLs) were prepared. The elements consist of five layers of the relaxor-ferroelectric 0.9Pb(Mg1/3Nb2/3)O3-0.1PbTiO3, about 60 μm thick, with internal platinum electrodes and exhibiting a dense, uniform microstructure with a grain size of 1.7 μm. The largest temperature change ÎTEC of 2.26 K was achieved at an electric field (E) of 100 kV cmâ1 and at 105 °C, measured by a high-resolution calorimeter. These results agree well with the indirect measurements. The EC coefficient, ÎTEC/ÎE, obtained for the MLs, is similar to the value obtained for bulk ceramics of the same composition. The ÎTEC values above 2 K over a broad temperature range from 75 to 105 °C make the ML elements suitable candidates for EC cooling devices at significantly lower voltages than bulk ceramic plates with comparable dimensions and mass.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 2, February 2017, Pages 599-603
Journal: Journal of the European Ceramic Society - Volume 37, Issue 2, February 2017, Pages 599-603
نویسندگان
Lovro FulanoviÄ, Silvo DrnovÅ¡ek, Hana UrÅ¡iÄ, Marko Vrabelj, Danjela KuÅ¡Äer, Kostja MakaroviÄ, Vid Bobnar, Zdravko Kutnjak, Barbara MaliÄ,