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2 711 006

(13)

(51)

IPC

G21C3/62(2006-01-01)

C01G43/25(2006-01-01)

G21C21/02(2006-01-01)

(21) (22)

Application

2019117736, 2019-06-07

(24)

Start date

2019-06-07

(22)

Actual filing date

2019-06-07

(45)

Published

2020-01-14

(72)

Inventor

Vojtenko Maksim YurevichKarpeeva Anastasiya EvgenevnaPakhomov Dmitrij SergeevichSkomorokha Andrej EvgenevichTimoshin Ignat Sergeevich

(73)

Holder

Publichnoe Aktsionernoe Obshchestvo Zavod"

METHOD OF PRODUCING CERAMIC NUCLEAR FUEL WITH BURNABLE ABSORBER Russian patent published in 2020 - IPC G21C3/62 C01G43/25 G21C21/02

Abstract RU 2711006 C1

FIELD: nuclear industry.

SUBSTANCE: invention relates to nuclear industry, particularly, to production of ceramic nuclear fuel for fuel elements. Method of producing nuclear fuel pellets with a burnable absorber involves preparation of an oxide-oxide with a burnable absorber, preparation of a press powder, pressing, sintering and grinding. Combustible absorber used is gadolinium hydroxy-carbonate Gd(OH)CO₃⋅xH₂O (or Gd(CO₃)₃⋅xH₂O).

EFFECT: invention enables to increase the oxygen coefficient (ratio of the number of oxygen atoms which are valency bonded to uranium to the number of uranium atoms) in fuel pellets, which increases heat conductivity and reduces deformation of fuel pellets in the nuclear reactor.

4 cl, 12 dwg, 2 tbl

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RU 2 711 006 C1

Authors

Vojtenko Maksim Yurevich

Karpeeva Anastasiya Evgenevna

Pakhomov Dmitrij Sergeevich

Skomorokha Andrej Evgenevich

Timoshin Ignat Sergeevich

Dates

2020-01-14—Published

2019-06-07—Filed