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Titolo:
NEW INSIGHT ON BUBBLE-VOID TRANSITION EFFECTS IN IRRADIATED MATERIALS
Autore:
DUBINKO VI;
Indirizzi:
KHARKOV PHYS & TECHNOL INST KHARKOV 310108 UKRAINE
Titolo Testata:
Journal of nuclear materials
fascicolo: 1, volume: 206, anno: 1993,
pagine: 1 - 21
SICI:
0022-3115(1993)206:1<1:NIOBTE>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANISOTROPIC DIFFUSION; STAINLESS-STEEL; POINT-DEFECTS; METALS; CRYSTALS; LATTICE; GROWTH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
V.I. Dubinko, "NEW INSIGHT ON BUBBLE-VOID TRANSITION EFFECTS IN IRRADIATED MATERIALS", Journal of nuclear materials, 206(1), 1993, pp. 1-21

Abstract

An account of elastic interaction between cavities and point defects is shown to result in new critical quantities for bubble-void transition effects in irradiated cubic crystals. In contrast to previous theories, the present one gives not only critical quantities which determine the onset of bias-driven void swelling but the maximum stationary number density and the corresponding mean radius of voids as well as theduration of the bimodal regime. The void density and swelling rate are shown to be independent from the gas level. In the region of low temperatures/high dose rates, the void density appears to be independent from irradiation parameters as well. The relationships among material constants are found at which the stabilization of gas bubbles occurs via the dislocation loop punching mechanism resulting in a drastic change in the cavity behaviour under irradiation such as the saturation (or even suppression) of void swelling and void lattice formation. The theoretical results are compared with experimental data and further experimental tests are proposed.

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Documento generato il 07/07/20 alle ore 15:14:39