کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7833863 | 1503524 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Degradation of ultra-thin boron films in air
ترجمه فارسی عنوان
تجزیه فیلمهای بور نازک در هوا
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Corrosion of B films in air can limit their practical applications. Here, we study the evolution of the elemental composition, thickness, and morphology of 10-100-nm-thick amorphous B films sputter-deposited onto glassy carbon substrates and stored under different conditions. Results show that films with thicknesses of â³55â¯nm have expected excellent corrosion resistance during storage in laboratory air at room temperature over several months. In contrast, â²45-nm-thick films exhibit pronounced degradation upon air exposure, starting with a change in the composition to â¼30 and â¼50â¯at.% of O and H, respectively. After such an O and H uptake, the degradation proceeds via mass loss with a characteristic time constant of â¼5â¯days in air at room temperature. A post-deposition annealing at 1000â¯Â°C in an inert atmosphere makes all the films corrosion resistant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 448, 1 August 2018, Pages 498-501
Journal: Applied Surface Science - Volume 448, 1 August 2018, Pages 498-501
نویسندگان
L.B. Bayu Aji, A.A. Baker, J.H. Bae, A.M. Hiszpanski, E. Stavrou, S.K. McCall, S.O. Kucheyev,