TY - JOUR
T1 - Application of ion-beam-analysis techniques to the study of irradiation damage in zirconium alloys
AU - Howe, L. M.
AU - Phillips, D.
AU - Zou, H.
AU - Forster, J.
AU - Siegele, R.
AU - Davies, J. A.
AU - Motta, A. T.
AU - Faldowski, J. A.
AU - Okamoto, P. R.
N1 - Funding Information:
This researchp roject was funded mainly through a CANDU OwnersG roup (COG) contracta nd we wish to thank the COG Working Party 32 committeef or their financial support and interestin the programT. he authors would also like to expressth eira ppreciatiofno r thet echni-cal supportt hey receivedf rom H. Plattnera nd J.D. Bon-nett of Chalk River Laboratoriesa nd from E. Ryan, L. Funk and S. Ackerso f ArgonneN ationalL aboratory.
PY - 1996/9
Y1 - 1996/9
N2 - Ion-beam-analysis techniques are being used to provide an understanding of the nature of collision cascades, irradiationinduced phase changes, lattice location of solute atoms and defect-solute atom interactions in various zirconium alloys. In zirconium intermetallic compounds, such as Zr3Fe, Zr2Fe, ZrFe2, and Zr3(Fex,Ni1-x), electron and ion irradiations have been used to obtain detailed information on the crystalline-to-amorphous transformation occurring during the irradiation. Transmission-electron-microscopy (TEM) observations have provided information on the nature of the damage produced in individual cascades, the critical dose required for amorphization, and the critical temperature for amorphization. In a study on the electron-energy dependence of amorphization in Zr3Fe, Zr2Fe and ZrCr2 in situ high-voltage-electron-microscope investigations were combined with high-energy forward-elastic-recoil measurements to yield information on the threshold displacement energies for Zr and Fe or Cr in these lattices, as well as the role of secondary displacements of lattice atoms by recoil impurities (C,O) at low electron energies. In Zr implanted with 56Fe ions and subsequently bombarded with 40Ar ions at 723 K, subsequent secondary-ion-mass-spectrometry (SIMS) analyses were used to monitor the effect of irradiation on the migration of Fe in the Zr lattice. In addition, ion-channeling investigations have been used to determine the lattice sites of solute atoms in Zr as well as the details of the interaction between the solute atoms and the irradiation-produced defects.
AB - Ion-beam-analysis techniques are being used to provide an understanding of the nature of collision cascades, irradiationinduced phase changes, lattice location of solute atoms and defect-solute atom interactions in various zirconium alloys. In zirconium intermetallic compounds, such as Zr3Fe, Zr2Fe, ZrFe2, and Zr3(Fex,Ni1-x), electron and ion irradiations have been used to obtain detailed information on the crystalline-to-amorphous transformation occurring during the irradiation. Transmission-electron-microscopy (TEM) observations have provided information on the nature of the damage produced in individual cascades, the critical dose required for amorphization, and the critical temperature for amorphization. In a study on the electron-energy dependence of amorphization in Zr3Fe, Zr2Fe and ZrCr2 in situ high-voltage-electron-microscope investigations were combined with high-energy forward-elastic-recoil measurements to yield information on the threshold displacement energies for Zr and Fe or Cr in these lattices, as well as the role of secondary displacements of lattice atoms by recoil impurities (C,O) at low electron energies. In Zr implanted with 56Fe ions and subsequently bombarded with 40Ar ions at 723 K, subsequent secondary-ion-mass-spectrometry (SIMS) analyses were used to monitor the effect of irradiation on the migration of Fe in the Zr lattice. In addition, ion-channeling investigations have been used to determine the lattice sites of solute atoms in Zr as well as the details of the interaction between the solute atoms and the irradiation-produced defects.
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U2 - 10.1016/0168-583X(96)80117-0
DO - 10.1016/0168-583X(96)80117-0
M3 - Article
AN - SCOPUS:0030565183
SN - 0168-583X
VL - 118
SP - 663
EP - 669
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 1-4
ER -