Au diffusion in amorphous and polycrystalline Ni0.55 Nb0.45
- 1 September 1982
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 53 (9) , 6186-6190
- https://doi.org/10.1063/1.331531
Abstract
Diffusion of Au in amorphous and polycrystalline Ni0.55 Nb0.45 has been studied by Rutherford backscattering spectroscopy of heat‐treated Au/NiNb couples. The diffusion process is characterized by interdiffusion of Nb and Au with NiNb showing a Au miscibility of ∼20 at. %. The Au diffusion coefficient in polycrystalline NiNb at 400 °C was found to be 1.6×10−15 cm2/s. The diffusion coefficient for Au in amorphous NiNb was found to be substantially less, ∼10−21 cm2/s at 400 °C. These results support the concept of using amorphous films as metallizations or diffusion barriers in high‐temperature solid‐state device applications.This publication has 5 references indexed in Scilit:
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