Radiation-enhanced diffusion in amorphous Ni-Zr alloys

Journal Article · Wed Jun 15 04:00:00 EDT 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.37.10383· OSTI ID:5256319

Averback, R S; Hahn, H

Radiation-enhanced diffusion of Cu and Au tracer impurity atoms during Kr/sup +/ irradiation has been measured in amorphous Ni/sub 50/Zr/sub 50/ and Ni/sub 35/Zr/sub 65/ alloys in the range 80--573 K. At low temperatures, the spreading of the thin impurity layers was due to ion beam mixing and was independent of temperature. Above approx. =400 K, the diffusion coefficient of Cu in Ni/sub 50/Zr/sub 50/ shows Arrhenius behavior with an apparent activation enthalpy of approx. =0.55 eV, and it depends on the square root of dose rate. The radiation-enhanced diffusion coefficient is greater for Cu than Au and is also larger in the Zr-rich alloy.

• Research Organization: Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
• OSTI ID: 5256319
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:17; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
AMORPHOUS STATE
ARRHENIUS EQUATION
ATOM TRANSPORT
CHARGED PARTICLES
COLLISIONS
COPPER
DIFFUSION
ELEMENTS
ENERGY RANGE
EQUATIONS
GOLD
HIGH TEMPERATURE
ION COLLISIONS
IONS
KRYPTON IONS
LOW TEMPERATURE
MEDIUM TEMPERATURE
METALS
MEV RANGE
MEV RANGE 01-10
NEUTRAL-PARTICLE TRANSPORT
NICKEL ALLOYS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATION TRANSPORT
TRANSITION ELEMENTS
ZIRCONIUM ALLOYS