Registration Number
0223U005348,
0123U102965
, R & D reports
Title
Investigations of the effect of synthesis regimes on the hafnium diboride properties as neutron absorbing materials VVER-1000
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Head
Lehenkyi Yehor S.,
Registration Date
20-12-2023
Organization
National Science Center "Kharkiv Institute of Physics and Technology"
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A general description of the design of the SSC, fuel assemblies, and neutron-absorbing materials of VVER 1000 and PWR reactors is presented.
It is shown that the next stage in improving the physical efficiency, reliability, and service life of fuel rods is the transition to the combined use of neutron-absorbing materials dysprosium hafnate (Dy2O3⋅HfO2) and boron carbide. For PWRs operating on MOX fuel, the use of hafnium diboride (HfB2) is promising.
The report presents some aspects of hafnium diboride performance as a promising neutron absorber in comparison with other neutron-absorbing materials;
the thermodynamic aspects of the synthesis of hafnium diboride from the starting compounds of hafnium oxide, boron, boron carbide during sintering in vacuum were investigated;
the influence of the temperature of sintering in vacuum on the completeness of synthesis and characteristics of hafnium diboride tablets was investigated.
Product Description
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Zuyok Valerii A.
Kirsanova Olha S
Kolodiy Igor Viktorovych
Kushtym Anton V.
Kushtym Yana O.
Lehenkyi Yehor S.
Pylypenko Olexandr V.
Romankov Viktor O
Chernov Igor O
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2023-12-20
