کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5352613 | 1503679 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of modulation periodicity on microstructure, mechanical and tribological properties of NbN/AlN nanostructured multilayer films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
NbN/AlN nano-multilayer films with modulation periodicity (Î) ranging from 3.9 to 31.6 nm have been deposited on Si (1 0 0) substrate by reactive magnetron sputtering in Ar/N2 mixtures. The Î dependent structural, mechanical and tribological properties for resulting NbN/AlN multilayers have been explored. As Î varies from 3.9 to 31.6 nm, the crystal structures of NbN and AlN are face-centered cubic and hexagonal in multilayer films, respectively, favoring formation of a coherent epitaxial growth with crystallographic relationship of 111NbN110NbN//0002AlN112¯0AlN due to total energy minimization, and large Î can improve mutual coherence and promote coherent growth of fcc-NbN(1 1 1)/w-AlN(0 0 0 2). The remarkable hardness enhancement implements in a wide range of Î from 3.9 to 31.6 nm for NbN/AlN multilayer system, which can be mainly attributed to hindering the dislocation motion caused by heterostructure coherent interface of fcc-NbN(1 1 1)/w-AlN(0 0 0 2). Although all multilayers show lower friction coefficient than constituent monolayers, great improvements in the wear behaviors only appear in multilayers with Π= 3.9 and 7.4 nm due to their large content of interfaces.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 284, 1 November 2013, Pages 331-339
Journal: Applied Surface Science - Volume 284, 1 November 2013, Pages 331-339
نویسندگان
Mao Wen, Hao Huang, Kan Zhang, Qingnan Meng, Xin Li, Xiaoming Zhang, Lingwei Kong, Weitao Zheng,