GB719611A - Improvements in or relating to sintered refractory masses - Google Patents

Improvements in or relating to sintered refractory masses

Info

Publication number
GB719611A
GB719611A GB2280748A GB2280748A GB719611A GB 719611 A GB719611 A GB 719611A GB 2280748 A GB2280748 A GB 2280748A GB 2280748 A GB2280748 A GB 2280748A GB 719611 A GB719611 A GB 719611A
Authority
GB
United Kingdom
Prior art keywords
mould
sintering temperature
bodies
graphite
joined
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
GB2280748A
Inventor
Albert Etheridge Williams
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.)
LORD PRESIDENT OF COUNCIL
Original Assignee
LORD PRESIDENT OF COUNCIL
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 LORD PRESIDENT OF COUNCIL filed Critical LORD PRESIDENT OF COUNCIL
Priority to GB2280748A priority Critical patent/GB719611A/en
Publication of GB719611A publication Critical patent/GB719611A/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
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/001—Joining burned ceramic articles with other burned ceramic articles or other articles by heating directly with other burned ceramic articles
    • 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
    • C04B35/645—Pressure sintering
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C04B2237/343—Alumina or aluminates
    • 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
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

719,611. Making sintered refractory bodies. LORD PRESIDENT OF THE COUNCIL. Aug. 15, 1949 [Aug. 30, 1948], No. 22807/48. Class 87(2) Shaped sintered bodies of refractory compounds are joined to each other by pressing them together whilst they are at a sintering temperature, the pressure applied being of the order of 1 ton p.s.i. The refractory compounds maybe oxides of beryllium, aluminium, thorium and magnesium. Individual bodies are made from such oxides by compaction at a sintering temperature and then these bodies are joined by pressing at a sintering temperature: the second sintering temperature may be the same as the first, or when dissimilar bodies produced at different temperatures are being joined the second sintering temperature may be the lower or lowest of said different temperatures. The drawings show apparatus for making two hemispheres and sticking them together, comprising a mould 8a and plunger 9a for forming the hemispheres and two plungers 9, 17 for sticking them together in a mould 8b. The moulds and the plunger ends are coated with graphite in acetone. In both steps of the procedure the mould rests on a graphite block 6, sheets 5, 3 of " Sindanyo " (R.T.M.)-mainly asbestos, and lower platen 1 of a hydraulic press. The mould is surrounded by magnesia 14 packed within a tube 4 of silica or alumina surrounded by a high frequency heating coil 10 in a mica shell 11. A graphite plunger 9 enters the mould and pressure is applied thereto from the upper platen 2 through a block 18. A graphite tube 13 receives a pyrometer. Both pressings may be at 1,500‹C. and 1 ton p.s.i. for 10 minutes. Hollow hemispheres may be made similarly and then stuck together around a solid sphere.
GB2280748A 1948-08-30 1948-08-30 Improvements in or relating to sintered refractory masses Expired GB719611A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2280748A GB719611A (en) 1948-08-30 1948-08-30 Improvements in or relating to sintered refractory masses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2280748A GB719611A (en) 1948-08-30 1948-08-30 Improvements in or relating to sintered refractory masses

Publications (1)

Publication Number Publication Date
GB719611A true GB719611A (en) 1954-12-08

Family

ID=10185367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2280748A Expired GB719611A (en) 1948-08-30 1948-08-30 Improvements in or relating to sintered refractory masses

Country Status (1)

Country Link
GB (1) GB719611A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117174A (en) * 1961-06-19 1964-01-07 Nat Beryllia Corp Process for producing a ceramic-embedded wire structure
DE1207851B (en) * 1961-06-28 1965-12-23 Gen Electric Process for the production of a one-piece ceramic body
US3258514A (en) * 1962-02-02 1966-06-28 Kaiser Alnminum & Chemical Cor Hot pressing of powdered refractory material
US3264388A (en) * 1962-02-02 1966-08-02 Kaiser Aluminium Chem Corp Method of continuously hot pressing powdered refractory material
FR2147531A5 (en) * 1971-07-28 1973-03-09 Lucas Industries Ltd Silicon nitride - assembly of two blocks
WO1984003695A1 (en) * 1983-03-18 1984-09-27 Secr Defence Brit Ceramic evacuatable enclosure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117174A (en) * 1961-06-19 1964-01-07 Nat Beryllia Corp Process for producing a ceramic-embedded wire structure
DE1207851B (en) * 1961-06-28 1965-12-23 Gen Electric Process for the production of a one-piece ceramic body
US3258514A (en) * 1962-02-02 1966-06-28 Kaiser Alnminum & Chemical Cor Hot pressing of powdered refractory material
US3264388A (en) * 1962-02-02 1966-08-02 Kaiser Aluminium Chem Corp Method of continuously hot pressing powdered refractory material
FR2147531A5 (en) * 1971-07-28 1973-03-09 Lucas Industries Ltd Silicon nitride - assembly of two blocks
WO1984003695A1 (en) * 1983-03-18 1984-09-27 Secr Defence Brit Ceramic evacuatable enclosure
EP0121313A1 (en) * 1983-03-18 1984-10-10 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Method for making a ceramic article from component parts
US4662958A (en) * 1983-03-18 1987-05-05 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Method of making a ceramic evacuatable enclosure

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