کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1668376 | 1008867 | 2011 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The structure of Ti–Si–N superhard nanocomposite coatings: ab initio study The structure of Ti–Si–N superhard nanocomposite coatings: ab initio study](/preview/png/1668376.png)
To study the atomic structure of Ti–Si–N superhard nano-composite coatings, total energy calculations for some different configurations of TiN with Si addition have been conducted with the ab initio method. The investigation of silicon additions into the titanium nitride crystallite shows that (a) there is no silicon interstitial solid solution in the titanium nitride crystallite, and (b) if some titanium atoms or nitrogen atoms are missing in the titanium nitride crystallite, it is possible for silicon atoms to occupy the vacant sites and to form the substitution solid solution. The studies of the silicon addition as an interface sandwiched between the B1-TiN (001) oriented crystallites indicates that compared with the substitution interface structure, the structure with the interstitial interface is a low energy structure.
Journal: Thin Solid Films - Volume 520, Issue 2, 1 November 2011, Pages 876–880