کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440786 | 1398238 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and characterization of SiO2 thin film and SiC nanofibers to improve of graphite oxidation resistance
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In this study, a multiphase coating was prepared on a graphite substrate by a two-step technique to improve oxidation resistance of graphite. The first step was to prepare a functionally graded SiC layer by a pack cementation process and the second step was to obtain a nano SiC and SiO2 thin film coating by a slurry painting technique. The microstructure and the surface chemistry of the coating were characterized by X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy. The spectral deconvolution was conducted using CasaXPS software based on Gaussian-Lorentzian function. The isothermal oxidation test of the coated samples was performed at 1773 K for 10 h. A 500 μm thick graded C-SiC layer was observed at the graphite-coating interface. An amorphous SiO2 thin film and SiC nanofibers with the diameter in the range of 30-75 nm were formed on the coatings. The SiC nanofibers can efficiently improve oxidation resistance of graphite.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 36, Issue 16, December 2016, Pages 3947-3956
Journal: Journal of the European Ceramic Society - Volume 36, Issue 16, December 2016, Pages 3947-3956
نویسندگان
Jalil Pourasad, Naser Ehsani, Sayed Ali Khalifesoltani,