RESEARCH INTO THE EFFECT OF PARTICLE SIZE DISTRIBUTION OF NEUTRON-ABSORBING POWDER MATERIALS ON THE COMPACTION IN ABSORBING ROD CLADDINGS-Reference-Cited by-同舟云学术

RESEARCH INTO THE EFFECT OF PARTICLE SIZE DISTRIBUTION OF NEUTRON-ABSORBING POWDER MATERIALS ON THE COMPACTION IN ABSORBING ROD CLADDINGS

Published:2023-10-12 Issue: Volume: Page:97-102
ISSN:
Container-title:Problems of Atomic Science and Technology
language:
Short-container-title:

Author:

Chernov I.O.,Belash M.M.,Romankov V.O.,Yevseyev V.M.,Legenkyi Y.S.

Abstract

The results of research into the effect of the granulometric compositions of neutron-absorbing powder materials such as boron carbide, dysprosium titanate and dysprosium hafnate and their mixtures in the initial state on the characteristics of backfills in the claddings of both “short” and full-size absorbing rods are presented. It was revealed that the achievement of the maximum backfill density is facilitated by providing the content of a fine fraction of about 30%. The maximum backfill density values achieved for boron carbide, dysprosium titanate, and dysprosium hafnate were 1.82, 5.1, and 5.82 g/cm3 respectively. The optimal modes of vibration compaction (type and frequency of oscillations), which ensure the achievement of the required values of the backfill density in absorbing rods in a short time were defined.

Publisher

Problems of Atomic Science and Technology

Subject

General Medicine,General Medicine,General Medicine,General Medicine,General Medicine,General Medicine,Microbiology (medical),Immunology,Immunology and Allergy,General Earth and Planetary Sciences,General Environmental Science,General Earth and Planetary Sciences,General Engineering,General Environmental Science,General Earth and Planetary Sciences,General Environmental Science

Reference7 articles.

1. V.D. Risovany, A.V. Zakharov, E.M. Muraleva. New advanced absorbing materials for thermal reactors // Problems of Atomic Science and Tecnology. Series “Physics of Radiation Effect and Radiation Materials Science”. 2005, N 3(86), p. 87-93.

2. A.V. Zakharov, V.D. Risovany, E.P. Klochkov, D.N. Suslov, O.G. Sidorenko, et al. Absorbing core of a nuclear reactor control rod: RF patent No. 2119199 of 20.09.1998, G21C7/10, G21C7/24.

3. I.G. Shatalova, N.S. Gorbunov, V.I. Lichtman. Physical and chemical bases of vibration compaction of powder materials. M.: “Nauka”, 1965.

4. A.A. Maershin. Fuel elements with vibrocompacted oxide fuel. Dimitrovgrad: SSC “NIIAR”, 2007, 327 p.

5. R. Herbig, K. Rudolf, A. Maershin. Vibrocompacted fuel for the liquid metal reactor BOR-60 // Journal of Nuclear Materials. 1993, v. 204, p. 93-101.