کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5463705 | 1517202 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Size dependent flexocaloric effect of paraelectric Ba0.67Sr0.33TiO3 nanostructures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Size dependent flexocaloric effect of paraelectric Ba0.67Sr0.33TiO3 nanostructures Size dependent flexocaloric effect of paraelectric Ba0.67Sr0.33TiO3 nanostructures](/preview/png/5463705.png)
چکیده انگلیسی
Size dependent flexocaloric effect of paraelectric Ba0.67Sr0.33TiO3 nano-truncated pyramids was investigated based on a phenomenological thermodynamic theory. The formulas of adiabatic temperature or entropy change were deduced according to the flexoelectric effect and electrocaloric or elastocaloric effect. The results showed that flexoelectricity associated entropy change and adiabatic temperature change depend strongly on size, external stress and work temperature. The flexocaloric associated adiabatic temperature or entropy change increases with decreasing the thickness of truncated pyramids and increasing the external stress due to the increase of strain gradient. The flexocaloric entropy and adiabatic temperature changes are also enhanced with decreasing work temperature close to Tc.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 186, 1 January 2017, Pages 146-150
Journal: Materials Letters - Volume 186, 1 January 2017, Pages 146-150
نویسندگان
Gang Bai, Kai Qin, Qiyun Xie, Xiaobing Yan, Cunfa Gao, Zhiguo Liu,