Do thermal spikes contribute to the ion-induced mixing of Ni into Zr, Ti, and Pd

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103449· OSTI ID:6340428

Borgesen, P; Lilienfeld, D A; Johnson, H H ^[1]

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1. Cornell University, Ithaca, NY (USA)

Low-temperature ion beam mixing rates for Ni-Ti, Zr-Ni, and Pd-Ni bilayers significantly exceeded binary collision estimates, and appeared quite sensitive to thermodynamic driving forces. In the absence of a temperature dependence such a behavior is commonly ascribed to interdiffusion within thermal spikes. However, the Ni-Ti mixing rate was seen to vary linearly with nuclear damage energy for irradiation with 600 keV Xe, Kr, or Ar, 300 keV Ne or N, or 200 keV N ions, or 1 MeV Au ions (literature value). This excludes overlapping thermal spikes. An expression was derived for mixing due to nonoverlapping thermal spikes, but this could also not explain our results.

• OSTI ID: 6340428
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 57:14; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
656003 -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ARGON IONS
ATOM TRANSPORT
CHARGED PARTICLES
COLLISIONS
DAMAGE
DIFFUSION
ELEMENTS
ENERGY RANGE
GOLD IONS
ION COLLISIONS
IONS
KEV RANGE
KEV RANGE 100-1000
KRYPTON IONS
LAYERS
METALS
MIXING
NEUTRAL-PARTICLE TRANSPORT
NICKEL
NICKEL IONS
NITROGEN IONS
PALLADIUM
PHYSICAL RADIATION EFFECTS
PLATINUM METALS
RADIATION EFFECTS
RADIATION TRANSPORT
TITANIUM
TRANSITION ELEMENTS
XENON IONS
ZIRCONIUM