Mobility of Ni versus Zr in an amorphous Ni-Zr alloy Academic Article

abstract

• A method for determining the dominant diffusing constituent in a binary amorphous alloy is demonstrated with the Ni-Zr system. Nickel is the dominant moving species in an amorphous Ni-Zr alloy near the a-Ni50Zr50 composition at 250C. In comparison to the Ni, the Zr has a negligible mobility under similar thermodynamic driving forces. Rutherford backscattering spectrometry is used to measure the change in the concentration of a thin film of Ni between thick amorphous layers. Based upon the change in the Ni profile, the diffusivity of Ni in an amorphous Ni-Zr alloy is between 11017 and 11016 cm2/s at 250C.

authors

• Nastasi, Michael

published proceedings

• Applied Physics Letters

author list (cited authors)

• Barbour, J. C., Nastasi, M., & Mayer, J. W.

citation count

• 16

complete list of authors

• Barbour, JC||Nastasi, M||Mayer, JW

publication date

• February 1986

publisher

• AIP Publishing  Publisher

keywords

• 40 Engineering
• 4016 Materials Engineering

Digital Object Identifier (DOI)

• 10.1063/1.96492

start page

• 517

end page

• 519

volume

• 48

issue

• 8

URL

• http://dx.doi.org/10.1063/1.96492