کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1609822 | 1516269 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of pore content on diffuse phase transition behaviour of porous 0.5BaZr0.2Ti0.8O3-0.5Ba0.7Ca0.3TiO3 ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of pore content on diffuse phase transition behaviour of porous 0.5BaZr0.2Ti0.8O3-0.5Ba0.7Ca0.3TiO3 ceramics Effect of pore content on diffuse phase transition behaviour of porous 0.5BaZr0.2Ti0.8O3-0.5Ba0.7Ca0.3TiO3 ceramics](/preview/png/1609822.png)
چکیده انگلیسی
The lead-free (1 â x)BaZr0.2Ti0.8O3-xBa0.7Ca0.3TiO3 (BZT-xBCT) system has been well known as an alternative of lead based piezoelectric materials. Recently, this system has attracted new attentions for its potential applications in refrigeration. Benefit from the diffuse phase transition behaviour, it has the potential to be used in a wide cooling temperature range. In this paper, porous BZT-0.5BCT ceramics have been prepared by using the glucose as pore form agency. And the effect of pore content on diffuse phase transition behaviour of porous BZT-0.5BCT ceramics has been studied. The results show that the pore content increases with the glucose content increasing, and the diffuseness parameter decreased with the increase of pores. We suppose that the decrease of the diffuseness parameter are caused by the relieved of stress, because in porous ceramics internal stress could be relieved by pores. This result implies that the BZT-0.5BCT ceramics may have a stress-induced diffuse phase transition behaviour which is different from the intrinsic ones.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 624, 5 March 2015, Pages 284-289
Journal: Journal of Alloys and Compounds - Volume 624, 5 March 2015, Pages 284-289
نویسندگان
W. Wang, L.D. Wang, W.L. Li, D. Xu, Y.F. Hou, W.D. Fei,