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Influence of dislocation structure and impurities on void lattice formation in crystals under irradiation

Technical Report:

Abstract

The void ordering under irradiation in simple cubic, bcc, fcc and hcp-crystals is considered within the framework of the dislocation model of void lattice formation based upon the absorption of perfect interstitial loops by voids. The ordering criterion is derived taking into account not only perfect loopd but Frank sessile loops and straight dislocations as well. Analytical dependence of void lattice parameters on the concentration of the loop nucleation sites is derived. Impurities are shown to stimulate or prevent void ordering depending on their influence on the loop nature. Finally, a mechanism of loop-punching from submicroscopic overpressurized gas bubbles is considered as a possible source of perfect loops which could induce the swelling saturation and void ordering in fcc metals with low stacking fault energy. 15 refs.; 3 figs.
Authors:
Publication Date:
Dec 31, 1990
Product Type:
Technical Report
Report Number:
KFTI-90-18
Reference Number:
SCA: 360106; 665100; PA: AIX-24:000432; SN: 93000912737
Resource Relation:
Other Information: PBD: 1990
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; MOLYBDENUM; VOIDS; MOLYBDENUM BASE ALLOYS; STAINLESS STEELS; ANALYTICAL SOLUTION; CUBIC LATTICES; DISLOCATIONS; HCP LATTICES; IMPURITIES; LATTICE PARAMETERS; ORDER PARAMETERS; PHYSICAL RADIATION EFFECTS; SWELLING; 360106; 665100; RADIATION EFFECTS; NUCLEAR TECHNIQUES IN CONDENSED MATTER PHYSICS
OSTI ID:
10108649
Research Organizations:
AN Ukrainskoj SSR, Kharkov (Ukraine). Fiziko-Tekhnicheskij Inst.
Country of Origin:
Ukraine
Language:
English
Other Identifying Numbers:
Other: ON: DE93608977; TRN: UA9200582000432
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[13] p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Dubinko, V I. Influence of dislocation structure and impurities on void lattice formation in crystals under irradiation. Ukraine: N. p., 1990. Web.
Dubinko, V I. Influence of dislocation structure and impurities on void lattice formation in crystals under irradiation. Ukraine.
Dubinko, V I. 1990. "Influence of dislocation structure and impurities on void lattice formation in crystals under irradiation." Ukraine.
@misc{etde_10108649,
title = {Influence of dislocation structure and impurities on void lattice formation in crystals under irradiation}
author = {Dubinko, V I}
abstractNote = {The void ordering under irradiation in simple cubic, bcc, fcc and hcp-crystals is considered within the framework of the dislocation model of void lattice formation based upon the absorption of perfect interstitial loops by voids. The ordering criterion is derived taking into account not only perfect loopd but Frank sessile loops and straight dislocations as well. Analytical dependence of void lattice parameters on the concentration of the loop nucleation sites is derived. Impurities are shown to stimulate or prevent void ordering depending on their influence on the loop nature. Finally, a mechanism of loop-punching from submicroscopic overpressurized gas bubbles is considered as a possible source of perfect loops which could induce the swelling saturation and void ordering in fcc metals with low stacking fault energy. 15 refs.; 3 figs.}
place = {Ukraine}
year = {1990}
month = {Dec}
}