کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9841606 | 1525794 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Transmission electron microscopic studies on crystallization of YBa2Cu3O7ây films deposited by advanced TFA-MOD method
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Transmission electron microscopic studies on crystallization of YBa2Cu3O7ây films deposited by advanced TFA-MOD method Transmission electron microscopic studies on crystallization of YBa2Cu3O7ây films deposited by advanced TFA-MOD method](/preview/png/9841606.png)
چکیده انگلیسی
We have prepared Y123 quenched and fully crystallized films by the conventional and the advanced TFA-MOD processes. Then, we have investigated microstructures of the films by means of transmission electron microscopy, in order to understand the initial stage of the Y123 growth. As a result, it is found that Y-Ba-O-F grains firstly nucleate on LaAlO3 single crystals as well as on CeO2 buffered metal substrates both in the TFA-MOD processes. The Y-Ba-O-F is grown with epitaxially orientated relationship to the substrate. A BaCeO3 reaction product layer is formed due to Ba diffusion from Y123 to CeO2 mainly through the grain boundaries. At the crystallization temperature of 760 °C, the diffusion rate of Ba is slow. Therefore, it was found that the thickness of the BaCeO3 layer does not increase much further with increasing the holding time until about 1000 min.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volumes 426â431, Part 2, 1 October 2005, Pages 1051-1055
Journal: Physica C: Superconductivity and its Applications - Volumes 426â431, Part 2, 1 October 2005, Pages 1051-1055
نویسندگان
J.S. Matsuda, Y. Tokunaga, K. Nakaoka, R. Teranishi, Y. Aoki, H. Fuji, A. Yajima, Y. Yamada, T. Izumi, Y. Shiohara,