Increased wear resistance and positron annihilation in Cu exposed to high power ion beam

This paper concerns primary results of defect profiles in copper samples irradiated by a high power ion beam. Positron sensitive defects were found to be responsible for increased abrasive wear resistance. The HPIB modified layer was conventionally divided into three regions, which differed in defec...

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Bibliographic Details
Published in:Physics letters. A 1987-08, Vol.123 (8), p.410-412
Main Authors: Pogrebnjak, A.D., Isakov, I.F., Opekunov, M.S., Ruzimov, Sh.M., Ligachev, A.E., Nesmelov, A.V., Kurakin, I.B.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Electron and ion emission by liquids and solids
impact phenomena
Exact sciences and technology
Impact phenomena (including electron spectra and sputtering)
Materials science
Metals, semimetals and alloys
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other electron-impact emission phenomena
Other interactions of matter with particles and radiation
Physics
Specific materials
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Summary:This paper concerns primary results of defect profiles in copper samples irradiated by a high power ion beam. Positron sensitive defects were found to be responsible for increased abrasive wear resistance. The HPIB modified layer was conventionally divided into three regions, which differed in defect concentration and defect types. The region of formation of dislocation loops, prisms and vacancy twins correlated with maximum increased abrasive wear resistance. Isochronous annealing of the HPIB irradiated samples has also been investigated.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(87)90043-0