Sequence of phase formation in Nb/Al multilayered samples

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.341484· OSTI ID:6843487

Im, Y; Morris, Jr, J W

A series of Nb/Al multilayered samples made by a sputter-deposition or a cold-rolling technique was used to simulate reactions in powder metallurgy processed Nb/Al superconducting wires. The sequence of phase formation observed in the Nb/Al multilayered samples was explained using knowledge about the crystal structure of each compound. Three different controlling mechanisms were proposed: the activation energy for nucleation, the energy barrier associated with short range order, and the diffusion barrier by the previously formed phase layer.

• Research Organization: Center for Advanced Materials, Lawrence Berkeley Laboratory, Department of Materials Science and Engineering, University of California, Berkeley, California 94720
• OSTI ID: 6843487
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 64:7; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
420201 -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALUMINIUM
DIFFUSION BARRIERS
ELEMENTS
FABRICATION
LAYERS
METALLURGY
METALS
NIOBIUM
NUCLEATION
PHASE STUDIES
POWDER METALLURGY
SUPERCONDUCTING WIRES
TRANSITION ELEMENTS
WIRES