GB876640A - Improvements in or relating to the production of sintered compacts of beryllia - Google Patents

Improvements in or relating to the production of sintered compacts of beryllia

Info

Publication number
GB876640A
GB876640A GB17605/58A GB1760558A GB876640A GB 876640 A GB876640 A GB 876640A GB 17605/58 A GB17605/58 A GB 17605/58A GB 1760558 A GB1760558 A GB 1760558A GB 876640 A GB876640 A GB 876640A
Authority
GB
United Kingdom
Prior art keywords
beryllia
calcined
temperature
heated
heating
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
GB17605/58A
Inventor
Peter Murray
David Thomas Livey
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB17605/58A priority Critical patent/GB876640A/en
Publication of GB876640A publication Critical patent/GB876640A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/12—Moderator or core structure; Selection of materials for use as moderator characterised by composition, e.g. the moderator containing additional substances which ensure improved heat resistance of the moderator
    • 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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/08—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on beryllium oxide
    • 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)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

Pure calcined beryllia powder is cold-compacted, and then heated to a temperature not higher than 1400 DEG C. and for such a period that substantially all the particles are welded together, after which the compact is heated to at least 1500 DEG C. The first heating step is preferably carried out at a temperature in the region of, but not less than, the temperature at which the beryllia was originally calcined. For example, if the calcination were at about 1250 DEG C., the first heating should be from 1250 DEG C. to 1400 DEG C. In another case, a beryllia powder calcined at 900 DEG C. was cold compacted, and heated for at least 40 hours between 1100 DEG C. and 1400 DEG C. The heating to a sintering temperature of at least 1500 DEG C. may be carried out continuously or in stages. The calcined beryllia powder may be produced by treating suitable beryllium compounds, for example the hydroxide, carbonate, or oxalate to 500 DEG C.-1400 DEG C.
GB17605/58A 1958-06-02 1958-06-02 Improvements in or relating to the production of sintered compacts of beryllia Expired GB876640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17605/58A GB876640A (en) 1958-06-02 1958-06-02 Improvements in or relating to the production of sintered compacts of beryllia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17605/58A GB876640A (en) 1958-06-02 1958-06-02 Improvements in or relating to the production of sintered compacts of beryllia

Publications (1)

Publication Number Publication Date
GB876640A true GB876640A (en) 1961-09-06

Family

ID=10098078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17605/58A Expired GB876640A (en) 1958-06-02 1958-06-02 Improvements in or relating to the production of sintered compacts of beryllia

Country Status (1)

Country Link
GB (1) GB876640A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1210006B (en) * 1964-03-19 1966-02-03 Atomic Energy Authority Uk Process for the production of fine-grain beryllium oxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1210006B (en) * 1964-03-19 1966-02-03 Atomic Energy Authority Uk Process for the production of fine-grain beryllium oxide

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