Hydrogen Diffusion in Amorphous MmNi4.5 Mn0.5 Film

Abstract

Abstract: The MmNi_4.5Mn_0.5 (Mm. misch rare earth elements) thin film was prepared by conventional vacuum deposition technique. MmNi_4.5Mn_0.5 powder was placed on tantalum boat which was preheated at a temperature of;1400℃.All the component of MmNi_4.5Mn_0.5 evaporated immediately at this temperature and was deposited onto a cleaned palladium film (0.040mm) which was-placed just: above the tantalum boat. Analysis of the film was performed by means of X-ray fluorescence spectroscopy and it was confirmed that the composition was MmNi_4.5Mn_0.5. It was shown by X-ray diffraction spectroscopy that the MmNi_4.5 Mn_0.5 film was amorph-cus alloys.The diffusion coefficient of hydrogen in the film at ambient temperature has been studied with electrpchmical technique. The diffusion coefficient Dof hydrogen in amorphous MmNi_4.5Mn_0.5 alloy film was determined, the value of Dis (2.46±0.36)×10^-7cm²/s.

Key words: Hydrogen, Diffusion, Fifm

TrendMD:

Chao Jinlan, Zhou Zuoxiang, Wang Chunming, Jia Yuqun, He Lanling. Hydrogen Diffusion in Amorphous MmNi_4.5 Mn_0.5 Film[J]. Chem. J. Chinese Universities, 1988, 9(9): 957.

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Hydrogen Diffusion in Amorphous MmNi_4.5 Mn_0.5 Film

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