GB1106327A - Improvements in or relating to the production of ceramic bodies - Google Patents

Improvements in or relating to the production of ceramic bodies

Info

Publication number
GB1106327A
GB1106327A GB679764A GB679764A GB1106327A GB 1106327 A GB1106327 A GB 1106327A GB 679764 A GB679764 A GB 679764A GB 679764 A GB679764 A GB 679764A GB 1106327 A GB1106327 A GB 1106327A
Authority
GB
United Kingdom
Prior art keywords
microns
powder
ceramic
iron
nickel
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
GB679764A
Inventor
Peter Eric Evans
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB679764A priority Critical patent/GB1106327A/en
Publication of GB1106327A publication Critical patent/GB1106327A/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
    • C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions

Landscapes

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

Abstract

Green bodies which exhibit mineral grain growth when subsequently fired to ceramic bodies are produced by cold compacting a mixture of a hard ceramic powder and less than 10% by weight of iron or nickel powder and heating the compact in an oxidizing atmosphere to raise its temperature at a rate such that the metal powder is substantially oxidized before sintering occurs. Preferably the particle sizes of the metal and ceramic powders are of the same order i.e. within the ratio 1 : 10 to 10 : 1. In the example alumina of particle size 1-2 microns is mixed with 4% and 2% by weight nickel powder of - 325 mesh and 2-3 microns respectively, and alumina of 0.95 microns is compacted with nickel of 22, 7.5 and 2.7 microns and with iron of 4 microns. The green body may be fired at 1600-1800 DEG C.
GB679764A 1964-02-18 1964-02-18 Improvements in or relating to the production of ceramic bodies Expired GB1106327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB679764A GB1106327A (en) 1964-02-18 1964-02-18 Improvements in or relating to the production of ceramic bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB679764A GB1106327A (en) 1964-02-18 1964-02-18 Improvements in or relating to the production of ceramic bodies

Publications (1)

Publication Number Publication Date
GB1106327A true GB1106327A (en) 1968-03-13

Family

ID=9820938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB679764A Expired GB1106327A (en) 1964-02-18 1964-02-18 Improvements in or relating to the production of ceramic bodies

Country Status (1)

Country Link
GB (1) GB1106327A (en)

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