کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5362533 1388289 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of Fe/Al interface as a function of annealing temperature using XPS
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Investigation of Fe/Al interface as a function of annealing temperature using XPS
چکیده انگلیسی
The core level study show a gradual change in the nature of the electronic bonding at the interface as a result of annealing. In particular, the MLS annealed at 200 °C and 400 °C clearly show shifts in the binding energy position of Fe-2p3/2 core line towards higher energy and Al-2p3/2 core line towards lower energy side as compared to as-deposited sample, suggesting the formation of FeAl alloy phase at the interface. Another important finding with annealing is that the intensity of peak corresponding to pure Al-2p increases and that of Fe-2p decreases as compared to as-deposited case. The increase in intensity of Al-2p core line suggests the migration of Al atoms towards the surface owing to annealing induced inter-diffusion. The corresponding valence band spectra show appreciable changes in the Fe-3d as well as Al-3s density of states due to strong hybridization of sp-d states at the Fermi level as a result of charge transfer and also provide strong evidence for FeAl alloy formation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 255, Issue 12, 1 April 2009, Pages 6149-6154
نویسندگان
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