Dislocation structure in coarse-grained copper after ion implantation

Yu P. Sharkeev, N. V. Girsova, A. I. Ryabchikov, E. V. Kozlov, O. B. Perevalova, I. G. Brown, X. Y. Yao

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Abstract

We have investigated the dislocation structures formed in the near surface region of ion implanted coarse-grained copper (grain size 460 μm) using transmission electron microscopy. Ti and Zr ions were implanted into copper using a vacuum arc ion source. The ion energy was about 100 keV and the applied (incident) dose was 1 × 1017 cm-2. We find that Ti and Zr ion implantations produce a developed dislocation structure in the Cu subsurface layers. The dislocation structure changes form cell-net and cell dislocation structures at shallow depth to individual randomly distributed dislocations at greater depth. The maximum dislocation density in copper is 6.1 × 109 cm-2 for Ti and 11.4 × 109 cm-2 for Zr. The thickness of the modified copper layer with high dislocation density is up to 20 μm for Ti and 50 μm for Zr. Microhardness measurements vs. depth and dopant concentration profiles are presented. The long range effect is explained in terms of a model of static and dynamic mechanical stresses formed in the implanted surface layer.

Original languageEnglish
Pages (from-to)532-537
Number of pages6
JournalNuclear Inst. and Methods in Physics Research, B
Volume106
Issue number1-4
DOIs
Publication statusPublished - 2 Dec 1995

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Ion implantation
ion implantation
Copper
copper
Ions
Ion sources
Microhardness
Doping (additives)
Vacuum
ions
Transmission electron microscopy
cells
microhardness
ion sources
surface layers
arcs
grain size
dosage
vacuum
transmission electron microscopy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Dislocation structure in coarse-grained copper after ion implantation. / Sharkeev, Yu P.; Girsova, N. V.; Ryabchikov, A. I.; Kozlov, E. V.; Perevalova, O. B.; Brown, I. G.; Yao, X. Y.

In: Nuclear Inst. and Methods in Physics Research, B, Vol. 106, No. 1-4, 02.12.1995, p. 532-537.

Research output: Contribution to journalArticle

Sharkeev, Yu P. ; Girsova, N. V. ; Ryabchikov, A. I. ; Kozlov, E. V. ; Perevalova, O. B. ; Brown, I. G. ; Yao, X. Y. / Dislocation structure in coarse-grained copper after ion implantation. In: Nuclear Inst. and Methods in Physics Research, B. 1995 ; Vol. 106, No. 1-4. pp. 532-537.
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AU - Perevalova, O. B.

AU - Brown, I. G.

AU - Yao, X. Y.

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