Comparison of defect cluster accumulation and pattern formation in irradiated copper and nickel
- Oak Ridge National Lab., TN (United States)
- Pacific Northwest Lab., Richland, WA (United States); and others
The objective of this study is to compare the contrasting behavior of defect cluster formation in neutron-irradiated copper and nickel specimens. Transmission electron microscopy was used to examine the density and spatial distribution of defect clusters produced in copper and nickel as the result of fission neutron irradiation to damage levels of 0.01 to 0.25 displacements per atom (dpa) at irradiation temperature between 50 and 230{degrees}C. A comparison with published results in the literature indicates that defect cluster wall formation occurs in nickel irradiated at 0.2 to 0.4 T{sub M} in a wide variety of irradiation spectra. Defect cluster wall formation apparently only occurs in copper during low temperature irradiation with electrons and light ions. These results are discussed in terms of the thermal spike model for energetic displacement cascades.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400; AC06-76RL01830
- OSTI ID:
- 114927
- Report Number(s):
- DOE/ER-0313/17; ON: DE95013663; TRN: 95:022884
- Resource Relation:
- Other Information: PBD: Apr 1995; Related Information: Is Part Of Fusion materials semiannual progress report for the period ending September 30, 1994; PB: 390 p.
- Country of Publication:
- United States
- Language:
- English
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