کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
676007 | 1459631 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simultaneous measurement of specific heat, thermal conductivity, and thermal diffusivity of modified barium titanate ceramics
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A radiation calorimeter makes it possible to measure the specific heat, thermal conductivity, and thermal diffusivity of a solid sample simultaneously and independently. Because the three thermal quantities are not independent each other, a self-check of the reliability of the obtained values can also be made from results. Measurements were performed for ferroelectric BaTiO3 ceramics modified with a small amount of Zr, Sn, and Hf in the temperature range of 300–450 K. The modifier content was changed from 2.5 to 12 mol% of Ti ion. Results indicate that the temperature dependence of thermal conductivity changes from crystalline-like to amorphous-like with an increase of content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 442, Issues 1–2, 15 March 2006, Pages 14–17
Journal: Thermochimica Acta - Volume 442, Issues 1–2, 15 March 2006, Pages 14–17
نویسندگان
Kohsuke Morimoto, Shinya Sawai, Kumao Hisano, Takashi Yamamoto,