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| 11. |
Influence of the incidence angie on iron and copper surface microtopography induced by ion bombardment |
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Radiation Effects,
Volume 15,
Issue 1-2,
1972,
Page 101-113
I.A. Teodorescu,
F. Vasiliu,
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摘要:
Ion bombardment of iron and copper surfaces, previously subjected to thermal etching, produces an ion eroded microtopography, strongly dependent on the incidence angle on specimen surface and on the initial microrelief (pyramidal growths at dislocations in iron, terraced microstructures in copper, different oriented crystallites and grain boundaries) showing various local inclinations to the parallel ion beam.
ISSN:0033-7579
DOI:10.1080/00337577208232586
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
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| 12. |
Recovery of electron-irradiated platinum |
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Radiation Effects,
Volume 15,
Issue 1-2,
1972,
Page 115-127
H.J. Dibbert,
K. Sonnenberg,
W. Schilling,
U. Dedek,
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PDF (889KB)
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摘要:
Using electrical resistivity measurements the recovery in stage I of electron irradiated Pt has been studied. The influences which exert a large variation of irradiation dose, electron energy, radiation doping and doping with dilute concentrations of Au-atoms on the annealing structure were investigated. The recovery in substages IA, IBand ICis not influenced by irradiation dose and doping agents in agreement with the model of close Frenkel-pair recombination in these stages. Substage IEis strongly and substage IDis moderately modified by variation of radiation dose and the addition of doping agents. This and the equal values of the activation energies measured in substage IDand IEconfirm the model of correlated and uncorrelated recovery of free migrating interstitials in these stages.
ISSN:0033-7579
DOI:10.1080/00337577208232587
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
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| 13. |
Recovery of electron-irradiated platinum |
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Radiation Effects,
Volume 15,
Issue 1-2,
1972,
Page 129-141
K. Sonnenberg,
W. Schilling,
H.J. Dibbert,
K. Mika,
K. Schröder,
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PDF (990KB)
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摘要:
The experimental data for the time and dose and energy dependence of the recovery in substage IDand IBof electron irradiated Pt are compared critically with the results of full diffusional treatments of the correlated plus uncorrelated recovery of interstitial-vacancy pairs. An excellent agreement is obtained if in the theoretical treatment three-dimensional migration of interstitials is assumed. In contrast to this the assumption of one-dimensional interstitial-migration (off-line-crowdion-model) leads to serious disagreements with the observed dose dependence of stage IE. In addition, the strong dependence of the recovery structure in substage IDand IEon the energy of the bombarding electrons predicted by the crowdion model is not observed experimentally.
ISSN:0033-7579
DOI:10.1080/00337577208232588
出版商:Taylor & Francis Group
年代:1972
数据来源: Taylor
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