Energy dependence of aluminum diffusion in α-Fe under ion irradiation

Kolotov, A. A.; Drozdov, A. Yu.; Гильмутдинов, Ф. З.; Bayankin, V. Ya.

doi:10.1134/s1063785011080232

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…For example, it was shown in refs. [33] that the excess of atoms (embedded and intrinsic) in the interstitial positions created by irradiation in the region after the range and the presence of vacancies lead to a specific spatial distribution of point defects, which can extend from the range region to distances much larger than the ion path. The impurity and the described defect structures removed from the area of the implanted layer are related, on the one hand, to the generation of elastic waves arising from the introduction of accelerated ions into the solid body and, on the other hand, to the static stresses in the implanted layer induced by ion implantation [34].…”

Section: Introductionmentioning

confidence: 99%

The influence of vacancy generation on the impurity distribution in the target under the conditions of surface treatment by a particle beam

Parfenova

Knyazeva

2023

Z Angew Math Mech

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The paper presents a nonlinear coupled isothermal model of the process of surface treatment by a particle beam. The model takes into account the interaction between the diffusion of impurity and propagation of mechanical disturbances, as well as the transfer of the introduced impurity with the vacancy mechanism and under the action of stresses. The nonlinear problem is solved numerically using an implicit symmetric difference scheme of the second order approximation in time and spatial coordinates. The finite time of mass flux relaxation and the dependence of diffusion coefficient on the composition and on the concentration of vacancies lead to peculiarities in the propagation of both the concentration wave and the wave of mechanical disturbances. Vacancy generation contributes to the acceleration of impurity propagation and increased strain/stresses.

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Section: Introductionmentioning

confidence: 99%

The influence of vacancy generation on the impurity distribution in the target under the conditions of surface treatment by a particle beam

Parfenova

Knyazeva

2023

Z Angew Math Mech

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“…The physical phenomena associated with the generation of vacancies are discussed in them. For example, in [3] it was shown that the excess of atoms in interstitial positions and the presence of vacancies at the depth are greater than the effective path, and this leads to a specific spatial distribution of point defects. It can extend from area of path by distances greater then projective path.…”

Section: Introductionmentioning

confidence: 99%

The Vacancy Generation Influence on the Initial Stage of Ion Implantation

Parfenova

Knyazeva

2015

AMR

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The coupled model is presented to describe the elements penetration into the surface layer of metal during the process of ion implantation. Mechanical stresses arising due to the interaction of particles with the surface affect the redistribution of the implanted impurity. In addition, the existence of vacancies in the metal surface and their generation under the stresses influence are taken into account. The kinetic law is written on the basis of the thermodynamics of irreversible processes. The solution had been found numerically. As a result, the distributions of impurity concentration and deformations have been obtained for various time moments. The comparison of the concentration profiles with vacancies and without their have been given.

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“…Physical phenomena associated with the vacancy generation are discussed in many papers describing diffusion in solids. Work [4] shows that radiation generates excess atoms in interstitial positions and vacancies in the area beyond the ion path. This leads to a specific spatial distribution of point defects.…”

Section: Introductionmentioning

confidence: 99%

The influence of vacancy generation at the initial stage of ion implantation

Parfenova¹,

Knyazeva²

2014

AIP Conference Proceedings

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The paper presents a coupled isothermal model at the initial stage of a solid surface treatment with particle beams. Mechanical stresses arising due to the interaction of particles with the surface affect the redistribution of the implanted impurity. Vacancies in the metal surface and their generation under stress are also taken into account. The kinetic law is formulated on the basis of thermodynamics of irreversible processes. The authors used numerical investigation methods. As a result, they have obtained the distributions of impurity concentration and deformations for various time moments. The authors also compare the concentration and deformation profiles with and without vacancies and study the influences of some model parameters. The effect of vacancy generation on the diffusion has been established to lead to an increase in the depth of penetration, as well as in the concentration of impurities

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Energy dependence of aluminum diffusion in α-Fe under ion irradiation

Cited by 4 publications

References 1 publication

The influence of vacancy generation on the impurity distribution in the target under the conditions of surface treatment by a particle beam

The influence of vacancy generation on the impurity distribution in the target under the conditions of surface treatment by a particle beam

The Vacancy Generation Influence on the Initial Stage of Ion Implantation

The influence of vacancy generation at the initial stage of ion implantation

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