GB943719A - Graphite coating of fuel particles - Google Patents

Graphite coating of fuel particles

Info

Publication number
GB943719A
GB943719A GB13237/62A GB1323762A GB943719A GB 943719 A GB943719 A GB 943719A GB 13237/62 A GB13237/62 A GB 13237/62A GB 1323762 A GB1323762 A GB 1323762A GB 943719 A GB943719 A GB 943719A
Authority
GB
United Kingdom
Prior art keywords
particles
cylinder
uranium
graphite
methane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB13237/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
High Temperature Materials Inc
Original Assignee
High Temperature Materials Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by High Temperature Materials Inc filed Critical High Temperature Materials Inc
Publication of GB943719A publication Critical patent/GB943719A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/42—Selection of substances for use as reactor fuel
    • G21C3/58—Solid reactor fuel Pellets made of fissile material
    • G21C3/62—Ceramic fuel
    • G21C3/626—Coated fuel particles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Nuclear fuel particles are coated with pyrolytic graphite produced by the thermal decomposition of a hydrocarbon gas in the presence of the particles to be coated. The fuel is preferably uranium monocarbide, uranium dicarbide or a uranium oxide while methane, ethane, propane and benzene are suitable hydrocarbons. The process is carried out at a temperature between 1700 DEG C. and 3000 DEG C. and a pressure of between 1 mm. and 200 mm. of mercury, in a hollow graphite cylinder rotatable about its longitudinal axis. For example, 30 gm. of uranium dicarbide in the shape of spherical particles of diameters between 177 and 250 microns are charged into the graphite cylinder which is filled with argon at a pressure of 20 mm. of mercury and rotated at a speed of 30 r.p.m. while its temperature is raised to 1700 DEG C. by means of a surrounding induction coil, methane being introduced into the cylinder at a rate of 0.2 litre/min. After 4 hours of processing, the methane supply is shut off and the cylinder allowed to cool to room temperature, the particles then having a graphite coating of average thickness about 80 microns.
GB13237/62A 1961-05-01 1962-04-06 Graphite coating of fuel particles Expired GB943719A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10657661A 1961-05-01 1961-05-01

Publications (1)

Publication Number Publication Date
GB943719A true GB943719A (en) 1963-12-04

Family

ID=22312168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13237/62A Expired GB943719A (en) 1961-05-01 1962-04-06 Graphite coating of fuel particles

Country Status (2)

Country Link
DE (1) DE1471195A1 (en)
GB (1) GB943719A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234868B (en) * 1964-03-25 1967-02-23 Arbeitsgemeinschaft Versuchs R Nuclear reactor fuel element
DE1696687B1 (en) * 1965-06-18 1972-08-31 Nukem Gmbh PROCESS FOR COATING NUCLEAR FUEL AND / OR NUCLEAR BODY PARTICLES WITH CARBON

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234868B (en) * 1964-03-25 1967-02-23 Arbeitsgemeinschaft Versuchs R Nuclear reactor fuel element
DE1242765B (en) * 1964-03-25 1967-06-22 Arbeitsgemeinschaft Versuchs R Nuclear reactor fuel element
DE1696687B1 (en) * 1965-06-18 1972-08-31 Nukem Gmbh PROCESS FOR COATING NUCLEAR FUEL AND / OR NUCLEAR BODY PARTICLES WITH CARBON

Also Published As

Publication number Publication date
DE1471195A1 (en) 1969-01-09

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