Interstitial trapping and detrapping in electron irradiated dilute copper alloys

Dworschak, F.; Lennartz, R.; Wollenberger, H.

doi:10.1088/0305-4608/5/3/004

Cited by 77 publications

(10 citation statements)

References 16 publications

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“…A curve almost identical to the solid line of Figure 1 can also be obtained with ppt(i)==325 pncm, ppt(i2)-800 pQcm and Rt=0. 3. Such values for p F t ( i 2 ) imply that the mixed dumbbell configuration is altered by the trapping of additional self-interstitials, which is not excluded25 although unlikely.…”

Section: I1 Damage Rate Determination Of Trapping Radii When P D (I)mentioning

confidence: 95%

On the study of interstitial trapping in dilute alloys by resistivity measurements

Maury

1983

Radiation Effects

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Section: I1 Damage Rate Determination Of Trapping Radii When P D (I)mentioning

confidence: 95%

On the study of interstitial trapping in dilute alloys by resistivity measurements

Maury

1983

Radiation Effects

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“…The angular dependence of G (see (5)) suggests the following boundary condi- c1=+-2e: (6) with el = cos p sin 6, ,02 = sin p sin 6, p3 = cos 6 and the third order approxi- where the constants are in general functions of the elastic constants of the medium and are here calculated for Cu. We are interested in the total defect current flowing to a trap.…”

Section: Calculational Methodsmentioning

confidence: 99%

Numerical Calculation of the Drift Diffusion Current for Elastically Interacting Point Defects

Pbofant¹,

Wollenberger²

1975

Physica Status Solidi (b)

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For long range interactions the probability of defect encounter is determined by the drift diffusion current of one defect to the other. This current is calculated numerically for iso‐tropic point defects in an anisotropio elastic continuum. The diffusion current is found to be a fixed fraction of that caused by a spherical potential for which the current can bewritten by a simple analytical expression.

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“…U p until the mid-l980s, most published TEM studies reported a "nearly linear" increase of the defect cluster density with fluence for copper irradiated near or above room temperature [17,27,28], although a few notable TEM studies reported square root accumulation kinetics [23,24]. Sublinear behavior was reported in several studies at doses above -10p4-10-3dpa, but was attributed to defect cluster overlap effects [l 1,17,27,33,44].…”

Section: 1mentioning

confidence: 99%

“…A simple model known as the "unsaturable trap model" was originally developed to explain this behavior in electron-irradiated Cu [14]. A more general version, known as the reciprocal damage rate (RDR) model, was subsequently used in numerous electrical resistivity studies of electron and neutron irradiated metals [24][25][26] r? Comparison of the dose-dependent electrical resistivity increase (measured at 4K) and defect cluster density in pure Cu irradiated with 14-MeV neutrons at room temperature [26,41].…”

Section: 1mentioning

confidence: 99%

Fundamental radiation effects parameters in metals and ceramics

Zinkle

1999

Radiation Effects and Defects in Solids

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Several fundamental aspects of defect cluster accumulation in irradiated ceramics and face centered cubic metals are rehewed, with particular emphasis on radiation hardening and the microstructural evolution in Cu observed by transmission electron microscopy (TEM). At temperatures where interstitials are mobile (> 50 K i n Cu), the defect cluster density in pure Cu is initially proportional to the dose and exhibits a square root dose dependence above -displacements per atom. This fluence dependence (determined from electrical resistivity and TEM studies) helps to resolve a long-standing controversy on the fluence dependence of radiation hardening. The fraction of freely migrating interstitials in copper irradiated with 14MeV neutrons at room temperature I S -11%. The activation energy for annealing stage V (stacking fault tetrahedra evaporation) in neutron-irradiated copper has been measured to be 0.84eV. Some features of the point defect accumulation behavior in ceramics are found to be very similar to the trends observed in pure Cu, despite the obvious differences in the physical properties of these two types of materials. Finally, microstructural evidence for some processes unique to nonmetals are summarized, particularly ionization induced diffusion.

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Interstitial trapping and detrapping in electron irradiated dilute copper alloys

Cited by 77 publications

References 16 publications

On the study of interstitial trapping in dilute alloys by resistivity measurements

On the study of interstitial trapping in dilute alloys by resistivity measurements

Numerical Calculation of the Drift Diffusion Current for Elastically Interacting Point Defects

Fundamental radiation effects parameters in metals and ceramics

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