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
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 ≳55 nm have expected excellent corrosion resistance during storage in laboratory air at room temperature over several months. In contrast, ≲45-nm-thick films exhibit pronounced degradation upon air exposure, starting with a change in the composition to ∼30 and ∼50 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 ∼5 days in air at room temperature. A post-deposition annealing at 1000 °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
نویسندگان
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