Nuclear fuel management and boron carbide coating
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Date
2000-10
Journal Title
Journal ISSN
Volume Title
Publisher
Turkish Atomic Energy Authority
Abstract
In recent years one way of introducing burnable absorber is to coat the fuel pellets by a thin
layer of burnable absorber so called integral fuel burnable absorber (IFBA). In this method the
fuel is coated with boron nitride or boron carbide. Boron has low absorption cross-section and
when it exists on the surface of the fuel, it interacts with thermalised neutron. B4C is a boron
compound, which can be used for coating the nuclear fuel. It has high thermal stability and
withstands high pressure and temperatures. High technology product of boron carbide has
different ratio of B: C. But in nuclear reactor when boron carbide is used, it must be rich with
boron. In this research chemical vapor decomposition (CVD) has been using boron trichloride
and carbon tetra chloride for reactant materials. The experiments were carried out at high
temperatures (1050°C, 1225°C and 1325°C). The coated samples were analyzed using X-Ray
difractometer (XRD), scanning electron microscopy (SEM) and will be presented in this paper.
It was seen that decreasing the reaction temperature caused an increase on the quality and
thickness of the coating.
Description
I. Avrasya Nükleer Bilimler ve Uygulamaları Konferansı : 23-27 Ekim 2000. İzmir, Türkiye.
Keywords
Nuclear fuels, Nükleer yakıtlar, Nuclear fuel management, Nükleer yakıt yönetimi, Boron carbide coating, Bor karbür kaplama
Citation
İzmir, A. İ., Balcı, S., Uslu, İ. (2000). Nuclear fuel management and boron carbide coating. I. Eurasia Conference on Nuclear Science and Its Application, Presentations, Vol 1, (s. 201-204). 23-27 October 2000. İzmir, Turkey.