ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Diffusion of Ag in a nanometer Ni-B-O amorphous alloy has been studied by heavy-ion Rutherford backscattering spectroscopy. A significant mass transport was observed at the extremely low anneal temperatures. The values of the diffusion coefficients that were found at 293, 323, and 373 K are 3.5×10−16, 4.3×10−15, and 5.0×10−14 cm2/s, respectively. Moreover, small values for the activation energy, 0.58 eV, and the pre-exponential factor of the diffusion coefficient, 3.9×10−6 cm2/s, were derived from the Arrhenius plot. Finally, a possible free volume controlled diffusion mechanism was discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.357511
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