Neutron-induced collision cascade mixing in Nb/V superlattices

Conference · Thu Jul 01 00:00:00 EDT 1993

OSTI ID:10177299

Alexander, D E; Fullerton, E E; Baldo, P M; Sowers, C H; Rehn, L E

High-angle X-ray diffraction was used to determine cascade mixing efficiencies, Dt/dpa, in Nb/V superlattices irradiated to small doses ({le}0.26 dpa). Samples were neutron irradiated in the core of the High Flux Beam Reactor at Brookhaven National Laboratory and ion irradiated with 1.5 MeV Ne. No significant differences were observed in cascade mixing efficiencies between the two types of irradiation. Values of Dt/dpa were observed to vary with the modulation wavelength of the superlattice, with thicker wavelength samples yielding values approaching that determined from ion mixing thick Nb/V bilayers (Dt/dpa{approx}110 {Angstrom}{sup 2}/dpa). The decrease in mixing efficiency observed at lower wavelengths may be related to an observed structural transition in which the interfaces of the superlattice become coherent.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10177299
• Report Number(s): ANL/MSD/CP-79243; CONF-930712-1; ON: DE93018575; TRN: 93:018969
• Resource Relation: Conference: ICACS: 15. international conference on atomic collision in solids,London (Canada),26-30 Jul 1993; Other Information: PBD: Jul 1993
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SUPERLATTICES
X-RAY DIFFRACTION
NIOBIUM ALLOYS
DAMAGING NEUTRON FLUENCE
VANADIUM ALLOYS
X-RAY SPECTRA
DISPLACEMENT RATES
PHYSICAL RADIATION EFFECTS
360106
665100
665300
RADIATION EFFECTS
NUCLEAR TECHNIQUES IN CONDENSED MATTER PHYSICS
INTERACTIONS BETWEEN BEAMS AND CONDENSED MATTER