کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5354828 | 1503618 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chemical and structural characterization of ZrCNAg coatings: XPS, XRD and Raman spectroscopy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
In this report ZrCNAg coatings produced by dual magnetron sputtering are characterized by X-ray photoelectron spectroscopy (XPS) and complemented by X-ray diffraction, scanning electron microscopy, electron-probe microanalysis and Raman spectroscopy, in order to determine the chemical bonds and phases formed during the production process. The results demonstrate the possibility of producing coatings with different silver content (0-16Â at.%), in which zirconium carbonitrides (70-95Â at.%), amorphous carbon nitride phases (0-16Â at.%) and residual zirconium oxide phases (â¼5Â at.%) coexists with the metallic silver. The profile analysis evidenced a highly oxidized surface due to the affinity of Zr to form ZrO2, and silver segregation to the surface. The composition after Ar+ bombardment revealed the contribution of silver clusters and metallic silver, together with the mentioned phases that vary in content depending on the deposition parameters utilized. STEM images revealed silver nanoparticles distributed in the ZrCN matrix with sizes around 5-20Â nm, as well as silver surface agglomeration with sizes <80Â nm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 346, 15 August 2015, Pages 240-247
Journal: Applied Surface Science - Volume 346, 15 August 2015, Pages 240-247
نویسندگان
S. Calderon V, A. Cavaleiro, S. Carvalho,