The formation process of Nb3A1 by a solid state reaction between Nb and Al is examined for both powder metallurgy processed wires and sputtered multilayer films. It is turned out that the diffusion of Al into Nb layer plays an important role in the formation process of Nb3A1, but the extremely thin Nb thickness is not necessarily needed for the solid state reaction on the basis of the study on multilayered films. We discuss on the relationship between the Nb layer thickness and the areal reduction ratio to the Nb3A1 formation in the powder metallurgy process.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering