GB1105520A - Process for the preparation of deoxidised actinide carbides - Google Patents

Process for the preparation of deoxidised actinide carbides

Info

Publication number
GB1105520A
GB1105520A GB34371/65A GB3437165A GB1105520A GB 1105520 A GB1105520 A GB 1105520A GB 34371/65 A GB34371/65 A GB 34371/65A GB 3437165 A GB3437165 A GB 3437165A GB 1105520 A GB1105520 A GB 1105520A
Authority
GB
United Kingdom
Prior art keywords
carbide
hydride
mixture
pressed
temperature
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
GB34371/65A
Inventor
Roger Pascard
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1105520A publication Critical patent/GB1105520A/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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/928—Carbides of actinides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • 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

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

Abstract

Deoxidized actinide carbides are prepared by grinding the carbide particularly uranium and/or plutonium carbide, and thorium carbide, for treatment and a hydride of the metals Ca, Sr, Ba, Mg and Al in powder form, mixing these powders, heating the mixture in vacuo and holding it at a temperature such as to produce decomposition of the hydride and a reduction reaction by the said metal, the amount of the latter being at least sufficient to substantially completely deoxidize the carbide. The hydride is preferably CaH2 in which case the mixture is held at above 700 DEG C. and the vacuum may be between 10-4 and 10-5 mm. Hg. The powder mixture may be cold-pressed to form a compact article and the heating carried out at such a temperature as to cause sintering. Amounts of less than 1% of Fe, Ni or Co may be added before the articles are pressed and the articls heated to between 1400 DEG and 1500 DEG C. without mechanical pressure.
GB34371/65A 1964-08-25 1965-08-11 Process for the preparation of deoxidised actinide carbides Expired GB1105520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR986094A FR1413959A (en) 1964-08-25 1964-08-25 Process for the preparation of deoxidized actinide carbides

Publications (1)

Publication Number Publication Date
GB1105520A true GB1105520A (en) 1968-03-06

Family

ID=8837172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34371/65A Expired GB1105520A (en) 1964-08-25 1965-08-11 Process for the preparation of deoxidised actinide carbides

Country Status (2)

Country Link
FR (1) FR1413959A (en)
GB (1) GB1105520A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE728884A (en) * 1969-02-25 1969-08-01

Also Published As

Publication number Publication date
FR1413959A (en) 1965-10-15

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