Au diffusion in amorphous and polycrystalline Ni/sub 0. 55/ Nb/sub 0. 45/

Journal Article · Wed Sep 01 04:00:00 EDT 1982 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.331531· OSTI ID:5079214

Doyle, B L; Peercy, P S; Wiley, J D; Perepezko, J H; Nordman, J E

Diffusion of Au in amorphous and polycrystalline Ni/sub 0.55/ Nb/sub 0.45/ 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 approx.20 at. %. The Au diffusion coefficient in polycrystalline NiNb at 400 /sup 0/C was found to be 1.6 x 10/sup -15/ cm/sup 2//s. The diffusion coefficient for Au in amorphous NiNb was found to be substantially less, approx.10/sup -21/ cm/sup 2//s at 400 /sup 0/C. These results support the concept of using amorphous films as metallizations or diffusion barriers in high-temperature solid-state device applications.

• Research Organization: Sandia National Laboratories, Albuquerque, New Mexico 87185
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5079214
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 53:9; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
AMORPHOUS STATE
ATOM TRANSPORT
BACKSCATTERING
CRYSTALS
DATA
DIFFUSION
ELEMENTS
EXPERIMENTAL DATA
FILMS
GOLD
HEAT TREATMENTS
HIGH TEMPERATURE
INFORMATION
METALS
NEUTRAL-PARTICLE TRANSPORT
NICKEL ALLOYS
NIOBIUM ALLOYS
NUMERICAL DATA
POLYCRYSTALS
RADIATION TRANSPORT
SCATTERING
SOLUBILITY
SPECTROSCOPY
TRANSITION ELEMENTS