Konobeevskij, S.T.; Pravdyuk, N.F.; Astrakhantsev, S.M.; Karpukhin, V.I.; Nikolaenko, V.A.; Skvortsov, V.V.
New Nuclear Materials Including Non Metallic Fuel Elements. Vol. I. Proceedings of the Conference on New Nuclear Materials Technology, Including Non Metallic Fuel Elements1963
New Nuclear Materials Including Non Metallic Fuel Elements. Vol. I. Proceedings of the Conference on New Nuclear Materials Technology, Including Non Metallic Fuel Elements1963
AbstractAbstract
[en] The paper is based on work involving a study of the behaviour of uranium dioxide, dispersed in aluminium and copper matrices, under irradiation. It is shown that at a high burn-up of the uranium in the dioxide (∼ 1/3 of the total uranium atoms) there is a decrease in the lattice parameter o f the oxide from 5.46 kX to 5.40 kX. It is thought that this change in the crystal-cell constant is connected with the oxidation of stoichiometric uranium dioxide by oxygen released during uranium fission. The paper also gives data on the interaction of uranium dioxide and aluminium under irradiation. It has been established that irradiation brings about the reaction between uranium dioxide and aluminium at lower temperatures than would otherwise be the case. The results obtained are in good agreement with published data. (author)
[fr]
Le memoire s'appuie sur une serie de travaux portant sur le comportement du bioxyde d' uranium pendant l'irradiation. Il traite de la structure du bioxyde d'uranium en dispersion dans une matrice d'aluminium et de cuivre. Les auteurs montrent qu'en presence de taux de combustion eleves (∼ 1/3 de tous les atomes d'uranium contenus dans UO2), le pas du reseau de l'oxyde tombe de 5,46 a 5,40 kX. On suppose que cette modification depend de l'oxydatiop. du bioxyde d'uranium de composition stoechiometrique par l'oxygene libere lors de la fission de l'uranium. Le memoire apporte des donnees sur l'interaction du bioxyde d'uranium et de l'aluminium sous irradiation. On a constate que l'irradiation favorise les reactions entre le bioxyde d'uranium et l'aluminium, ce qui permet d'employer des temperatures plus basses. Les resultats obtenus concordent avec les donnees fournies par la documentation publiee. (author)[es]
La memoria se basa en una serie de investigaciones sobre el comportamiento del dioxido de uranio sometido a irradiacion. Dicho compuesto se estudio en dispersion en matrices de aluminio y de cobre. Los autores demuestran que con grados de combustion elevados (aprox. 1/3 del total de atomos de uranio contenidos en el UO2), la constante de la celda del oxido disminuye de 5,46 kX a 5,40 kX. Se supone que esa modificacion se debe a la oxidacion del dioxido de uranio estequiometrico por el oxigeno liberado en la fision del uranio. Asimismo, se presentan en la memoria datos sobre la interaccion del dioxido de uranio y del aluminio en el curso de la irradiacion. Se comprueba que esta ultima favorece el desarrollo de la reaccion entre el dioxido de uranio y el aluminio a temperaturas inferiores a las que se necesitarian en ausencia de irradiacion. Los resultados obtenidos concuerdan con los datos que figuran en publicaciones anteriores. (author)[ru]
Doklad sostavlen na osnove ryada rabot, v kotorykh issledovalos' povedenie dvuokisi urana pod oblucheniem. Izuchalas' dvuokis' urana, dispergirovannaya v alyuminievoj i mednoj matritse. Pokazano, chto pri bol'shikh vygoraniyakh urana iz dvuokisi urana (∼1/3 vsekh atomov urana) proiskhodit umen'shenie perioda reshetki okisla ot 5,46 kX do 5,40 kX. Predpolagaetsya, chto takoe izmenenie postoyannoj kristallicheskoj yachejki svyazano s okisleniem dvuokisi urana stekhiometricheskogo sostava kislorodom, osvobozhdayushchimsya pri delenii urana. Privodyatsya dannye po vzaimodejstviyu pod oblucheniem dvuokisi urana s alyuminiem. Ustanovleno, chto obluchenie sposobstvuet protekaniyu reaktsii mezhdu dvuokis'yu urana i alyuminiem pri bolee nizkikh temperaturakh, chem bez oblucheniya. Poluchennye rezul'taty nakhodyatsya v sootvetstvii s imeyushchimisya literaturnymi dannymi. (author)Original Title
Etude de certains processus s'operant dans UO2 en dispersion dans la matrice; Issledovanie nekotorykh protsessov v dvuokisi urana/ dispergirovannoj v matritse; Estudio de algunos procesos en el UO2 disperso en una matriz
Primary Subject
Secondary Subject
Source
International Atomic Energy Agency, Vienna (Austria); 582 p; Nov 1963; p. 269-283; Conference on New Nuclear Materials Technology, Including Non Metallic Fuel Elements; Prague (Czech Republic); 1-5 Jul 1963; ISSN 0074-1884; ; 14 figs., 4 tabs., 16 refs.
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Book
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Conference
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AbstractAbstract
[en] The results are briefly discussed of radiation stability tests of the CSN 13030 steel. Changes are given in tensile strength, and curves are shown of notch toughness prior to and after neutron irradiation. The effects are also discussed of the method of deoxidizing, the type of heat treatment, and of chemical composition on radiation stability. (Z.M.)
Original Title
Radiacni stabilita oceli pro tlakovou nadobu reaktoru A-1
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Record Type
Journal Article
Journal
Hutnicke Listy; v. 30(6); p. 408-412
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ALLOYS, BARYONS, CARBON ADDITIONS, CONTAINERS, ELEMENTARY PARTICLES, FERMIONS, GAS COOLED REACTORS, HADRONS, HEAVY WATER MODERATED REACTORS, HWGCR TYPE REACTORS, IRON ALLOYS, IRON BASE ALLOYS, NATURAL URANIUM REACTORS, NUCLEONS, POWER REACTORS, RADIATION EFFECTS, REACTORS, STEELS, THERMAL REACTORS, TRANSITION ELEMENT ALLOYS
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