GB1448732A - Sintered ceramic articles - Google Patents

Sintered ceramic articles

Info

Publication number
GB1448732A
GB1448732A GB1703273A GB1703273A GB1448732A GB 1448732 A GB1448732 A GB 1448732A GB 1703273 A GB1703273 A GB 1703273A GB 1703273 A GB1703273 A GB 1703273A GB 1448732 A GB1448732 A GB 1448732A
Authority
GB
United Kingdom
Prior art keywords
nitride
sintering
boron nitride
silicon
alumina
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
GB1703273A
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB1703273A priority Critical patent/GB1448732A/en
Publication of GB1448732A publication Critical patent/GB1448732A/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
    • C04B35/58—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/597—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon oxynitride, e.g. SIALONS
    • 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
    • C04B35/58—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/584—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride
    • C04B35/593—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 borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicon nitride obtained by 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
    • 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

Landscapes

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

Abstract

1448732 Sintering silicon nitride LUCAS INDUSTRIES Ltd 25 Feb 1974 [10 April 1973] 17032/73 Heading C7D Articles formed of or containing silicon nitride are made by sintering, the material being protected during sintering by a medium containing boron nitride and a substance which provides a silicon mononide vapour pressure greater than that of the said material in the sintering conditions, e.g. silica or a silicate. The material being sintered may be surrounded by a graphite component which is also provided with a protective coating which may include boron nitride, alumina or aluminium nitride. In an example a ceramic crucible is formed of a mixture of 79% silicon nitride, 10% aluminium nitride, 6% alumina and 5% magnesium oxide. The mix is isostatically cold-pressed, coated to a depth of 0À01-0À02 inch with an acetone suspension of silica with up to 80% of boron nitride, buried in boron nitride powder in a graphite die and heated to 1700‹C over 1 hour, the temperature being raised to 1850‹C over 20 minutes and held for a further hour.
GB1703273A 1973-04-10 1973-04-10 Sintered ceramic articles Expired GB1448732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1703273A GB1448732A (en) 1973-04-10 1973-04-10 Sintered ceramic articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1703273A GB1448732A (en) 1973-04-10 1973-04-10 Sintered ceramic articles

Publications (1)

Publication Number Publication Date
GB1448732A true GB1448732A (en) 1976-09-08

Family

ID=10088010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1703273A Expired GB1448732A (en) 1973-04-10 1973-04-10 Sintered ceramic articles

Country Status (1)

Country Link
GB (1) GB1448732A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742303A1 (en) * 1976-09-27 1978-03-30 Ceraver MANUFACTURING PROCESS FOR MODIFIED SILICON NITRIDE
US4354990A (en) * 1977-12-23 1982-10-19 Fiat Societa Per Azioni Process for sintering silicon nitride compacts
US4489032A (en) * 1982-09-30 1984-12-18 Ford Motor Company Method of hot pressing reactive materials
EP1832565A1 (en) * 2005-08-03 2007-09-12 Ibiden Co., Ltd. Jig for silicon carbide firing and method for producing porous silicon carbide body
CN104177091A (en) * 2014-08-11 2014-12-03 河海大学 Preparation method of high-compactness hBN (hexagonal Boron Nitride) ceramic material
CN110451936A (en) * 2019-09-04 2019-11-15 广东工业大学 A kind of complex phase ceramic and its preparation method and application
WO2023235285A1 (en) * 2022-06-01 2023-12-07 Globalwafers Co., Ltd. Methods for forming single crystal silicon ingots with reduced carbon contamination and susceptors for use in such methods

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742303A1 (en) * 1976-09-27 1978-03-30 Ceraver MANUFACTURING PROCESS FOR MODIFIED SILICON NITRIDE
US4354990A (en) * 1977-12-23 1982-10-19 Fiat Societa Per Azioni Process for sintering silicon nitride compacts
US4489032A (en) * 1982-09-30 1984-12-18 Ford Motor Company Method of hot pressing reactive materials
EP1832565A1 (en) * 2005-08-03 2007-09-12 Ibiden Co., Ltd. Jig for silicon carbide firing and method for producing porous silicon carbide body
EP1832565A4 (en) * 2005-08-03 2007-10-17 Ibiden Co Ltd Jig for silicon carbide firing and method for producing porous silicon carbide body
CN104177091A (en) * 2014-08-11 2014-12-03 河海大学 Preparation method of high-compactness hBN (hexagonal Boron Nitride) ceramic material
CN104177091B (en) * 2014-08-11 2015-11-18 河海大学 A kind of preparation method of high-compactness hexagonal boron nitride stupalith
CN110451936A (en) * 2019-09-04 2019-11-15 广东工业大学 A kind of complex phase ceramic and its preparation method and application
WO2023235285A1 (en) * 2022-06-01 2023-12-07 Globalwafers Co., Ltd. Methods for forming single crystal silicon ingots with reduced carbon contamination and susceptors for use in such methods

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee