PELLETIZED NUCLEAR FUEL Russian patent published in 2002 - IPC

Abstract RU 2193242 C2

FIELD: nuclear power engineering; uranium dioxide base fuel pellets. SUBSTANCE: according to first alternative uranium dioxide pellet has in its composition 0.03 to 0.10 mass percent of aluminum and 0.01 to 0.05 mass percent of silicon both distributed in the form of oxides over boundaries of uranium dioxide grains in the form of easy-melting eutectic; according to second alternative uranium dioxide pellet has in its composition, mas.%: aluminum, 0.03-0.10; silicon, 0.01-0.05; and niobium, 0.05-0.15; aluminum and silicon being distributed in the form of oxides over boundaries of uranium dioxide grains in the form of easy-melting eutectic and niobium, in the form oxides produces solid solution together with uranium dioxide; according to third alternative uranium dioxide pellet has in its composition 0.04-0.15 mas.% of iron, and 0.01-0.04 mas.% of silicon, both being distributed in the form of oxides mainly over boundaries of uranium dioxide grains in the form of easy-melting eutectic also incorporating in its composition iron in the form of oxides; remaining part of iron in the form of oxides produces solid solution together with uranium dioxide grains; according to fourth alternative uranium dioxide pellet has in its composition 0.04-0.15 mas.% of iron, 0.02-0.05 mas.% of aluminum, 0.01-0.04 mas.% of silicon, and 0.05-0.15 mas.% of niobium, aluminum and silicon being distributed in the form of oxides mainly over boundaries of uranium dioxide grains in the form of easy-melting eutectic incorporating in its composition part of iron in the form of oxide; remaining part of iron and niobium in the form of oxide produce solid solution together with grain material of uranium dioxide. Invention also discloses five methods for manufacturing palletized nuclear fuel. EFFECT: enhanced plasticity of fuel material at operating temperatures which reduces mechanical interaction between fuel pile and fuel element cladding. 31 cl, 3 dwg, 1 tbl

Similar patents RU2193242C2

Title Year Author Number
HIGH BURN-UP NUCLEAR FUEL TABLET AND METHOD OF MAKING SAID TABLET (VERSIONS) 2007
  • Kuleshov Aleksandr Vladimirovich
  • Novikov Vladimir Vladimirovich
  • Mikheev Evgenij Nikolaevich
  • Pimenov Jurij Vladimirovich
  • Petrov Igor' Valentinovich
  • Skomorokha Andrej Evgen'Evich
  • Kondratjuk Jurij Borisovich
  • Vladimirov Vladimir Viktorovich
RU2376665C2
METHOD AND DEVICE FOR EDDY-CURRENT INSPECTION FOR GADOLINIUM CONTENT OF EACH PELLET IN URANIUM- GADOLINIUM FUEL PILE OF FUEL ELEMENT 2000
  • Fedorov A.N.
  • Gusarov S.M.
  • Jumashev A.A.
  • Mikhajlin S.V.
RU2200352C2
HIGH BURNUP NUCLEAR URANIUM-GADOLINIUM FUEL ON BASIS FOR URANIUM DIOXIDE AND METHOD FOR ITS ACQUISITION (VERSIONS) 2007
  • Lysikov Aleksandr Vladimirovich
  • Kuleshov Aleksandr Vladimirovich
  • Samokhvalov Anatolij Nikolaevich
RU2362223C1
URANIUM-GADOLINIUM NUCLEAR FUEL AND METHOD FOR PRODUCTION THEREOF 2012
  • Lopatin Vladimir Jur'Evich
  • Mjakisheva Larisa Vasil'Evna
  • Panov Vladimir Sergeevich
  • Karpeeva Anastasija Evgen'Evna
  • Vlasovets Igor' Aleksandrovich
RU2502141C1
METHOD FOR MANUFACTURING NUCLEAR REACTOR FUEL ELEMENT 2001
  • Vatulin A.V.
  • Mishunin V.A.
  • Pashkov V.D.
  • Solonin M.I.
RU2201628C2
METHOD OF MAKING FUEL URANIUM-DIOXIDE-BASED PELLETS WITH LOW DOPANTS 2012
  • Lopatin Vladimir Jur'Evich
  • Mjakisheva Larisa Vasil'Evna
  • Panov Vladimir Sergeevich
  • Karpeeva Anastasija Evgen'Evna
RU2477198C1
NUCLEAR REACTOR FUEL ELEMENT 1997
  • Vatulin A.V.
  • Kostomarov V.P.
  • Lysenko V.A.
  • Savchenko A.M.
  • Solonin M.I.
  • Steljuk Ju.I.
RU2124767C1
METHOD OF PRODUCING CERAMIC NUCLEAR FUEL PELLETS WITH CONTROLLED MICROSTRUCTURE 2013
  • Baranov Vitalij Georgievich
  • Khlunov Aleksandr Vital'Evich
  • Petrov Igor' Valentinovich
  • Ivanov Ivan Mikhajlovich
  • Tenishev Andrej Vadimovich
  • Kondratjuk Jurij Borisovich
  • Timoshin Ignat Sergeevich
  • Rusanjuk Dmitrij Vasil'Evich
  • Mikheev Evgenij Nikolaevich
RU2525828C1
METHOD FOR MANUFACTURING NUCLEAR REACTOR FUEL ELEMENT 2001
  • Vatulin A.V.
  • Mishunin V.A.
  • Pashkov V.D.
  • Solonin M.I.
RU2201627C2
METHOD TO MANUFACTURE PELLET OF NUCLEAR CERAMIC FUEL 2012
  • Shilov Vasilij Vasil'Evich
  • Seregin Vladimir Il'Ich
  • Agevnin Mikhail Rostislavovich
  • But Larisa Anatol'Evna
RU2504029C2

RU 2 193 242 C2

Authors

Reshetnikov F.G.

Bibilashvili Ju.K.

Milovanov O.V.

Mikheev E.N.

Loktev A.M.

Kuleshov A.V.

Molchanov V.L.

Pimenov Ju.V.

Panjushkin A.K.

Goloveshkin A.V.

Malovik V.V.

Malygin V.B.

Dates

2002-11-20Published

2000-12-18Filed