کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8044098 | 1518915 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of carbon on microstructure and interfaces of NiC/Ti multilayers for neutron applications
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
NiC/Ti and Ni/Ti multilayer samples were fabricated by direct-current (DC) magnetron sputtering technique for investigating the effects of C atoms on their microstructure, interfaces and composition. Both multilayers consist of 10-nm-thickness Ti layers and 8.5-nm-thickness Ni or NiC layers, respectively. Grazing incidence X-ray reflectivity (GIXR) was performed to characterize the layer thicknesses and interfaces of multilayers. X-ray diffraction (XRD) was utilized to characterize their crystallizations. The layer morphology of these multilayers was investigated by transmission electron microscopy (TEM), and the depth distributions of Ni, Ti and C in both multilayers were studied through energy dispersive X-ray (EDX). Finally, depth profile X-ray photoelectron spectroscopy (XPS) was used to study the chemical state of Ni, Ti, and C. The experimental results present that crystallizations of the NiC/Ti multilayer were suppressed for not only Ni layers but also for Ti layers so that its interfaces were smoother than those of the Ni/Ti multilayer. In the NiC/Ti multilayer, a high concentration of carbon at the interfaces and the existence of carbon in the Ti layers were found. These phenomena could be explained by the compound formation and resputtering effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 155, September 2018, Pages 49-54
Journal: Vacuum - Volume 155, September 2018, Pages 49-54
نویسندگان
Hongfei Jiao, Changyang Yu, Zhong Zhang, Wenbin Li, Qiushi Huang, Hong Chen, Zhanshan Wang,