کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8027586 | 1517624 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of long-duration plasma electrolytic oxidation of aluminum by means of optical spectroscopy
ترجمه فارسی عنوان
بررسی اکسیداسیون الکترولیز پلاسمای طولانی مدت آلومینیوم با استفاده از طیف سنجی نوری
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کلمات کلیدی
آلومینیوم، اکسیداسیون الکترولیتی پلاسما، طیف انتشاری، درجه حرارت،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
The process of plasma electrolytic oxidation of aluminum was investigated by means of optical spectroscopy at a very long time interval. The change of morphology of obtained oxide coatings in the course of time was studied. Several hundreds of low-resolution emission optical spectra in the wavelength region between 250Â nm and 850Â nm, and higher-resolution spectra in the region from 230Â nm to 290Â nm were taken at the time interval up to 300Â min from the beginning of the anodization. The spectra consisted of spectral lines and bands originating both from the anode material (Al, i.e. AlO) and the electrolyte (water solution of the boric acid and sodium tetraborate). Three pairs of spectral lines of aluminum were used to estimate the plasma temperature. It was found to be about 8000Â K at the beginning of the process and as low as 3000-4000Â K after roughly 1Â h. The composition of the plasma containing aluminum, oxygen, hydrogen, and sodium was calculated in the temperature range up to 11,000Â K under assumption of local thermal equilibrium, in order to explain the appearance of the observed spectral features.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 254, 15 September 2014, Pages 270-276
Journal: Surface and Coatings Technology - Volume 254, 15 September 2014, Pages 270-276
نویسندگان
M. Sarvan, J. RadiÄ-PeriÄ, B. Kasalica, I. BelÄa, S. StojadinoviÄ, M. PeriÄ,