کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9693913 | 1459633 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simultaneous measurements of dielectric constant and heat flux on the phase transition of a single crystalline BaTiO3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Simultaneous measurements of dielectric constant and heat flux on the phase transition of a single crystalline BaTiO3 Simultaneous measurements of dielectric constant and heat flux on the phase transition of a single crystalline BaTiO3](/preview/png/9693913.png)
چکیده انگلیسی
We have developed an apparatus, which can measure heat flux and dielectric constant simultaneously. The heat flux and the dielectric constant of a single crystalline BaTiO3 were simultaneously measured with a temperature resolution of milli-Kelvin to study the detailed behavior of the phase transition. The anomalies are observed between 400 and 402Â K both in the heat flux and the dielectric measurements with a close correlation between the heat flux and the dielectric constant. A slow increase and a sudden jump in the dielectric constant were observed in the heating process and at least five thermal anomalies were observed between 400.3 and 401.2Â K in the cooling process. The unstable state was observed in the vicinity of Curie temperature keeping at a constant temperature both in the heating and cooling process. The hysteretic behaviors of the phase transition and the unstable state were discussed in terms of two-phase domains in the transition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 439, Issues 1â2, 1 December 2005, Pages 135-141
Journal: Thermochimica Acta - Volume 439, Issues 1â2, 1 December 2005, Pages 135-141
نویسندگان
Min Zeng, Hideko Hayashi, Hideaki Inaba,