کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7836548 | 1503542 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The plasma electrolytic oxidation micro-discharge channel model and its microstructure characteristic based on Ti tracer
ترجمه فارسی عنوان
مدل کانال اکسیداسیون الکترولیتیک اکسیداسیون میکرو تخلیه و ویژگی ریز ساختار آن بر اساس تریسی تیلر
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کلمات کلیدی
اکسیداسیون الکترولیتی پلاسما، کانال تخلیه، مدل شماتیک، تی تکرار،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
This study focuses on the individual discharge channel of ceramic coating prepared by plasma electrolytic oxidation (PEO), and attempts to reveal the mechanism of breakdown discharge at low voltage. Titanium (Ti) was employed as a substrate with the layer of aluminum deposited on it (aluminized Ti). The shape and microstructure of the discharge channels in PEO coatings were investigated using transmission electron microscope (TEM) and scanning electron microscopy (SEM). A schematic model of the individual discharge channel was proposed based on Ti tracer method. The shape of the discharge channel was mainly cylinder-shaped in the compact coating, with a groove-like oxidation region existed at the coating/substrate interface. In the groove-like oxidation region, the phase composition mainly composed of amorphous and mixed polycrystalline (aluminum titanate and mullite). β-Al2O3 was found in the ceramic coating. TEM morphology showed that nanometer sized micro channels existed in the ceramic coatings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 431, 15 February 2018, Pages 13-16
Journal: Applied Surface Science - Volume 431, 15 February 2018, Pages 13-16
نویسندگان
Fangyuan Gao, Li Hao, Guang Li, Yuan Xia,