کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10632072 | 992382 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Growth and properties of Ca0.28Ba0.72Nb2O6 single crystals
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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: Growth and properties of Ca0.28Ba0.72Nb2O6 single crystals Growth and properties of Ca0.28Ba0.72Nb2O6 single crystals](/preview/png/10632072.png)
چکیده انگلیسی
Calcium barium niobate Ca0.28Ba0.72Nb2O6 (CBN-28) crystals were successfully grown by the Czochralski method. X-ray powder diffraction experiments indicated that CBN single crystals are tetragonal with a = 12.432(±0.002) Ã
and c = 3.957(±0.001) Ã
, which have almost the same structure as the Sr0.50Ba0.50Nb2O6 (SBN-50) crystal. The thermal expansion coefficient perpendicular to Z-direction had been measured to be 1.25 Ã 10â5 Kâ1 between 293.15 and 572.15 K, and along Z-axis was negative between 298.15 and 543.15 K. The specific heat of the crystal had been measured by the differential scanning calorimetric experiments. The transmittance spectra from 200 to 3200 nm were also measured. The measured temperature dependence of dielectric constants showed that the Curie temperature of the CBN-28 crystals is 260 °C, which is about 200 °C higher than that of the (SBN) crystal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 40, Issue 4, 20 April 2005, Pages 643-649
Journal: Materials Research Bulletin - Volume 40, Issue 4, 20 April 2005, Pages 643-649
نویسندگان
Hualong Song, Huaijin Zhang, Xiangang Xu, Xiaobo Hu, Xiufeng Cheng, Jiyang Wang, Minhua Jiang,