GB999463A - Improvements in or relating to metal oxide power sintering - Google Patents

Improvements in or relating to metal oxide power sintering

Info

Publication number
GB999463A
GB999463A GB20268/62A GB2026862A GB999463A GB 999463 A GB999463 A GB 999463A GB 20268/62 A GB20268/62 A GB 20268/62A GB 2026862 A GB2026862 A GB 2026862A GB 999463 A GB999463 A GB 999463A
Authority
GB
United Kingdom
Prior art keywords
oxide
metal oxide
relating
oxides
oxide power
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
GB20268/62A
Inventor
Andre Bourrasse
Roger Callat
Roger Delmas
Jean Elston
Bernard Francois
Pierre Morize
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
Priority claimed from FR896499A external-priority patent/FR81635E/en
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB999463A publication Critical patent/GB999463A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • 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
    • G21C3/623—Oxide fuels
    • 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)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Metal oxide powders having a specific surface of at least 4 m.2/g. are sintered by (1) compressing the powder to give it a density equal to at least 45% of the theoretical density of the oxide, (2) rapidly heating, i.e. in up to 90 minutes, to 1200 DEG to 1800 DEG C. in a neutral or reducing atmosphere, e.g. dry hydrogen, argon or cracked ammonia, and maintaining such temperature, the total heating time not exceeding 3 hours, and then (3) cooling. Oxides may be uranium oxide, beryllium oxide, aluminium oxide or oxides of the actinides.
GB20268/62A 1961-06-02 1962-05-25 Improvements in or relating to metal oxide power sintering Expired GB999463A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR863705A FR1300794A (en) 1961-06-02 1961-06-02 Process for sintering metal oxide powders such as uranium dioxide
FR896499A FR81635E (en) 1962-05-04 1962-05-04 Process for sintering metal oxide powders such as uranium dioxide

Publications (1)

Publication Number Publication Date
GB999463A true GB999463A (en) 1965-07-28

Family

ID=26190847

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20268/62A Expired GB999463A (en) 1961-06-02 1962-05-25 Improvements in or relating to metal oxide power sintering

Country Status (4)

Country Link
BE (1) BE618217A (en)
FR (1) FR1300794A (en)
GB (1) GB999463A (en)
LU (1) LU41753A1 (en)

Also Published As

Publication number Publication date
BE618217A (en) 1962-09-17
FR1300794A (en) 1962-08-10
LU41753A1 (en) 1962-07-23

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