Nanoscale Modulation of Material Properties by Means of Irradiation

Abstract:

A theoretical approach is developed to describe creation of space-periodical modulation of microstructure by means irradiation and influence of this modulation on properties of the irradiated material. It has considered nonlinear dynamics of development of radiation-induced defects. The structure of defects drives microstructure and changes material properties. It is found that nanoscale space-periodical distribution is results of interaction of radiation-induced defects both with each other and with elements of microstructure. It is shown that homogenous defect distribution become instable and bifurcation happen with respect to development of space-periodical distribution. Thus change of microstructure and material properties become space-periodical. Period of inhomogeneity and bifurcation values of parameters have been obtained.

• Periodical: Key Engineering Materials (Volume 708)
• Pages: 30-34
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.708.30
• Online since: September 2016
• Authors: Pavlo Selyshchev*, V. Sugakov
• Keywords: Defects, Irradiation, Material, Microstructure, Nanoscale Distribution

References

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[4] V. I. Sugakov About super lattice of defect density in crystal under irradiation (ITPh-84-70, Kiev 1984).

[5] P. A. Selishchev,V. I. Sugakov Fizika tverdogo tela Vol. 28 (1986), p.2921.