GB700796A - Improvements in or relating to ultrarefractory products and methods of manufacture thereof - Google Patents

Improvements in or relating to ultrarefractory products and methods of manufacture thereof

Info

Publication number
GB700796A
GB700796A GB9143/52A GB914352A GB700796A GB 700796 A GB700796 A GB 700796A GB 9143/52 A GB9143/52 A GB 9143/52A GB 914352 A GB914352 A GB 914352A GB 700796 A GB700796 A GB 700796A
Authority
GB
United Kingdom
Prior art keywords
mixture
ultrarefractory
relating
manufacture
products
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
GB9143/52A
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.)
ELECTRODES de la SAVOIE SOC D
Original Assignee
ELECTRODES de la SAVOIE SOC D
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 ELECTRODES de la SAVOIE SOC D filed Critical ELECTRODES de la SAVOIE SOC D
Publication of GB700796A publication Critical patent/GB700796A/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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • 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
    • C04B35/10—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 aluminium oxide
    • 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
    • C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Ultrarefractories are produced by firing, in an oxidizing atmosphere, a mixture of alumina and silicon carbide crystals in which the proportion of particles under 100 microns are such that the ratio of alumina fires to silicon carbide fires is greater than four. A flux, e.g. a flouride of an alkali metal, an alkaline earth metal aluminium; or cryolite or mixtures thereof, may be added to the mixture. Mullite is stated to be formed and serves as a bond for the mixture. A temporary binder, e.g. dextrin, may also be present.
GB9143/52A 1951-04-10 1952-04-09 Improvements in or relating to ultrarefractory products and methods of manufacture thereof Expired GB700796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1035260T 1951-04-10

Publications (1)

Publication Number Publication Date
GB700796A true GB700796A (en) 1953-12-09

Family

ID=9585628

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9143/52A Expired GB700796A (en) 1951-04-10 1952-04-09 Improvements in or relating to ultrarefractory products and methods of manufacture thereof

Country Status (2)

Country Link
FR (1) FR1035260A (en)
GB (1) GB700796A (en)

Also Published As

Publication number Publication date
FR1035260A (en) 1953-08-20

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