The effect of segregation and thermodiffusion on the formation of interfaces in nanostructured (Ti-Hf-Zr-V-Nb)N multielement coatings

被引：0
|
作者：
A. D. Pogrebnyak
V. M. Beresnev
D. A. Kolesnikov
M. V. Kaverin
A. P. Shypylenko
K. Oyoshi
Y. Takeda
R. Krause-Rehberg
A. G. Ponomarev
机构：
[1] Sumy State University,Sumy Institute of Applied Physics
[2] Kharkiv National University,undefined
[3] Belgorod State University,undefined
[4] National Institute for Materials Science,undefined
[5] Martin-Luther-Universität Halle-Wittenberg,undefined
[6] National Academy of Sciences of Ukraine,undefined
来源：
Technical Physics Letters | 2013年 / 39卷
关键词：
Technical Physic Letter; PIXE; Nanocomposite Coating; Positron Energy; Positron Annihila Tion Spectroscopy;
D O I：
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学科分类号：
摘要：
Superhard nanostructured multielement coatings based on (Ti-Hf-Zr-V-Nb)N composition have been studied before and after thermal annealing at 600°C. It has been established that capture of positrons on defects takes place at the boundaries of nanograins and on interfaces (vacancies, nanopores, triple and higher-order joints of nanograins). Three-dimensional maps of the distribution of elements in super-hard coatings have been obtained using micro-proton-beam induced X-ray emission (μ-PIXE) measurements. Analysis of the μ-PIXE elemental profiles and defect profiles (obtained using a focused positron beam) helps understanding the physical picture of processes related to the formation of interfaces and sub-boundaries in nanostructured (Ti-Hf-Zr-V-Nb)N coatings.
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页码：280 / 283
页数：3
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