کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5368264 1388388 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of laser power on the orientation and microstructure of CeO2 films deposited on Hastelloy C276 tapes by laser chemical vapor deposition
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Influence of laser power on the orientation and microstructure of CeO2 films deposited on Hastelloy C276 tapes by laser chemical vapor deposition
چکیده انگلیسی

CeO2 films were prepared on LaMnO3/MgO/Gd2Zr2O7 multi-coated Hastelloy C276 tapes by laser chemical vapor deposition at different laser power (PL) from 46 to 101 W. Epitaxial (1 0 0) CeO2 films were prepared at PL = 46-93 W (deposition temperature, Tdep = 705-792 K). Epitaxial CeO2 films had rectangular-shaped grains at PL = 46-77 W (Tdep = 705-754 K), while square-shaped grains were obtained at PL = 85-93 W (Tdep = 769-792 K). CeO2 films showed a columnar microstructure. Epitaxial (1 0 0) CeO2 films with rectangular grains exhibited full width at half maximum of ω-scan on (2 0 0) reflection and ϕ-scan on (2 2 0) reflection of 3.4-3.2° and 6.0-7.2°, respectively. The deposition rate of the epitaxial (1 0 0) CeO2 films had a maximum of 4.6 μm h−1 at PL = 77 W (Tdep = 754 K).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 21, 15 August 2010, Pages 6395-6398
نویسندگان
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