کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1689320 | 1011225 | 2007 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Influence of ion irradiation effects on the hydriding behavior of nanocrystalline Mg–Ni films Influence of ion irradiation effects on the hydriding behavior of nanocrystalline Mg–Ni films](/preview/png/1689320.png)
Mg–Ni films were grown on a silicon substrate using two magnetron sputter deposition sources and simultaneous Ar ion irradiation. X-ray diffraction microstructure and phase composition, EDX elemental composition and atomic force microscopy surface topography analysis showed that under low-energy Ar ion irradiation (bias voltages from 0 to −120 V), the Mg2Ni phase was dominant and on the contrary with the increase of ion energy (bias voltages from −120 to −200 V), the MgNi2 phase appeared. The Mg content changed from 63 at% down to 42 at% in films grown under bias voltages of 0 and −200 V, respectively. During hydrogenation at 8 bar, 270 °C for 3 h, films with a dominant phase of Mg2Ni were transformed into Mg2NiH4. Hydrogen in MgNi2 films was mainly in interstitials and tended to form bubbles.
Journal: Vacuum - Volume 81, Issue 10, 15 June 2007, Pages 1224–1228