کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8032462 | 1517950 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of low titanium content on the phase composition, structure, and mechanical properties of magnetron sputtered WB2-TiB2 films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The effect of the low Ti content on the phase composition, structure and mechanical properties of magnetron sputtered WB2 - TiB2 films was studied. Non-equilibrium conditions during the films deposition cause the difference of their phase composition from the composition of the target. Sputtering of a WB2 target (hexagonal crystal lattice) results in formation of the β-WB phase with an orthorhombic crystal lattice and a B/W atoms ratio of about 1.19. It was found that even a very low Ti content (about 0.6â¯at. %) act as a catalyst for the formation of a diboride phase with hexagonal crystal lattice. A nanocomposite β-(W,Ti)B/(Ti,W)B2 (where (Ti,W)B2 has a hexagonal crystal lattice) is formed in the range of 0.6â¯<â¯xâ¯<â¯4.6â¯at. % of Ti. At xâ¯=â¯10.2â¯at. % a nanocomposite based on the (Ti,W)B2 phase is formed, which results in the highest hardness (33â¯GPa).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 662, 30 September 2018, Pages 137-144
Journal: Thin Solid Films - Volume 662, 30 September 2018, Pages 137-144
نویسندگان
O.V. Sobol, S.N. Dub, A.D. Pogrebnjak, R.P. Mygushchenko, A.A. Postelnyk, A.V. Zvyagolsky, G.N. Tolmachova,