کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1682272 | 1518744 | 2012 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heat treatment of glassy carbon implanted with cesium at room and high temperatures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
During implantation a strong redistribution of the cesium ions towards the surface is observed, which occurs already at room temperature and enhances at elevated temperatures. However, almost no cesium ions are lost in that process. Contrary, annealing at elevated temperatures results not only in a diffusion and redistribution of cesium, but also in a significant sublimation/evaporation of cesium into the vacuum. This suggests that during implantation some meta-stable compound is formed which prevents a cesium loss. SEM pictures of the samples show that implantation and subsequent annealing strongly influence the surface structure of the glassy carbon.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 273, 15 February 2012, Pages 68-71
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 273, 15 February 2012, Pages 68-71
نویسندگان
D.F. Langa, N.G. van der Berg, E. Friedland, J.B. Malherbe, A.J. Botha, P. Chakraborty, E. Wendler, W. Wesch,