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GB970639A - Method of producing high density silicon nitride - Google Patents

Method of producing high density silicon nitride

Info

Publication number
GB970639A
GB970639A GB1051760A GB1051760A GB970639A GB 970639 A GB970639 A GB 970639A GB 1051760 A GB1051760 A GB 1051760A GB 1051760 A GB1051760 A GB 1051760A GB 970639 A GB970639 A GB 970639A
Authority
GB
United Kingdom
Prior art keywords
silicon nitride
magnesium
calcium
beryllium
aluminium
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
GB1051760A
Inventor
Gerald George Deeley
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.)
GE Healthcare UK Ltd
Plessey Co Ltd
Original Assignee
GE Healthcare UK Ltd
Plessey Co 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 GE Healthcare UK Ltd, Plessey Co Ltd filed Critical GE Healthcare UK Ltd
Priority to GB1051760A priority Critical patent/GB970639A/en
Publication of GB970639A publication Critical patent/GB970639A/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
    • C04B35/584—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

Landscapes

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

Abstract

A silicon nitride ceramic is formed by mixing 0.1-25 weight per cent of a fluxing agent in powder form with powdered silicon nitride and pressure sintering the mixture. Fluxing agents mentioned are metallic magnesium, beryllium and aluminium; oxides of magnesium, beryllium, calcium, lithium, aluminium and ferric iron; nitrides of magnesium, beryllium, calcium, lithium and aluminium; and silicides of magnesium and calcium. The silicon nitride may have been produced by any of the following methods: (1) nitriding silicon powder at 1300-1650 DEG C.; (2) reaction of silicon chloride with either ammonia or N2/H2 mixtures at 1300-1650 DEG C.; or (3) reaction of silicon chloride with ammonia at -70 to +1300 DEG C. followed by pyrolysis.ALSO:A silicon nitride ceramic is formed by mixing 0.1 - 25 weight per cent of a fluxing agent in powder form with powdered silicon nitride and pressure sintering the mixture at 1500-1910 DEG C. Fluxing agents mentioned are metallic magnesium, beryllium, calcium, lithium, aluminium, and ferric iron; nitrides of magnesium, beryllium, calcium, lithium and aluminium; and silicides of magnesium and calcium.
GB1051760A 1960-03-24 1960-03-24 Method of producing high density silicon nitride Expired GB970639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1051760A GB970639A (en) 1960-03-24 1960-03-24 Method of producing high density silicon nitride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1051760A GB970639A (en) 1960-03-24 1960-03-24 Method of producing high density silicon nitride

Publications (1)

Publication Number Publication Date
GB970639A true GB970639A (en) 1964-09-23

Family

ID=9969283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1051760A Expired GB970639A (en) 1960-03-24 1960-03-24 Method of producing high density silicon nitride

Country Status (1)

Country Link
GB (1) GB970639A (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1646785B1 (en) * 1965-04-01 1971-09-16 Norton Co FIRE-RESISTANT CONSTRUCTION MATERIAL MADE OF SILICON OXYNITRIDE AND THE PROCESS FOR THE PRODUCTION
FR2131262A5 (en) * 1970-11-17 1972-11-10 Lucas Industries Ltd
FR2156633A1 (en) * 1971-10-05 1973-06-01 Annawerk Gmbh
DE2300547A1 (en) * 1973-01-08 1973-07-19 Lucas Industries Ltd Silicon aluminium oxynitride - formed by mixing alumina and silicon nitride powders, compressing and sintering
DE2330595A1 (en) * 1972-06-16 1974-01-03 Norton Co MOLDED BODY MADE OF SILICON NITRIDE
US3807212A (en) * 1971-04-27 1974-04-30 Lucas Industries Ltd Die and punch sets
US3836374A (en) * 1972-01-20 1974-09-17 Norton Co Hot pressed silicon nitride
US3983198A (en) * 1975-02-12 1976-09-28 Ford Motor Company Method of increasing the oxidation resistance of silicon nitride
US3989782A (en) 1973-12-29 1976-11-02 Joseph Lucas Limited Method of forming a sintered ceramic product
US4041123A (en) * 1971-04-20 1977-08-09 Westinghouse Electric Corporation Method of compacting shaped powdered objects
US4066468A (en) 1971-12-21 1978-01-03 Kabushiki Kaisha Toyota Chuo Kenkyusho Ceramics of silicon nitride
FR2376089A1 (en) * 1977-01-03 1978-07-28 Gen Electric PROCESS FOR MANUFACTURING FRITTED BODIES, PREFORMED IN SILICA NITRIDE
FR2376090A1 (en) * 1977-01-03 1978-07-28 Gen Electric PROCESS FOR MANUFACTURING A SRIED BODY OF SILICON NITRIDE
US4113830A (en) * 1974-03-18 1978-09-12 The United States Of America As Represented By The Secretary Of The Air Force Method of fabricating silicon nitride bodies
US4122140A (en) * 1977-01-03 1978-10-24 General Electric Company Hot pressing of silicon nitride using beryllium additive
US4124402A (en) * 1977-01-03 1978-11-07 General Electric Company Hot pressing of silicon nitride using magnesium silicide
JPS55353B1 (en) * 1970-11-03 1980-01-07
WO1980000079A1 (en) * 1978-06-15 1980-01-24 Gte Laboratories Inc Silicon nitride having high temperature and method
US4225356A (en) * 1979-08-13 1980-09-30 General Electric Company Sintering of silicon nitride using Be additive
US4284432A (en) * 1977-01-13 1981-08-18 Tokyo Shibaura Electric Co. Ltd. Ceramic powder material and method for manufacturing the same
US4341874A (en) * 1977-01-13 1982-07-27 Tokyo Shibaura Electric Co., Ltd. Si3 N4 Ceramic powder material and method for manufacturing the same
US4387079A (en) * 1979-01-10 1983-06-07 Toyo Soda Manufacturing Co., Ltd. Method of manufacturing high-purity silicon nitride powder
GB2129788A (en) * 1982-10-01 1984-05-23 British Ceramic Res Ass Silicon nitride ceramic bodies
CN113480318A (en) * 2021-08-18 2021-10-08 河南北星精工技术有限公司 High-thermal-conductivity silicon nitride ceramic and preparation method thereof

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1646785B1 (en) * 1965-04-01 1971-09-16 Norton Co FIRE-RESISTANT CONSTRUCTION MATERIAL MADE OF SILICON OXYNITRIDE AND THE PROCESS FOR THE PRODUCTION
JPS55353B1 (en) * 1970-11-03 1980-01-07
FR2131262A5 (en) * 1970-11-17 1972-11-10 Lucas Industries Ltd
US4041123A (en) * 1971-04-20 1977-08-09 Westinghouse Electric Corporation Method of compacting shaped powdered objects
US3807212A (en) * 1971-04-27 1974-04-30 Lucas Industries Ltd Die and punch sets
FR2156633A1 (en) * 1971-10-05 1973-06-01 Annawerk Gmbh
US4066468A (en) 1971-12-21 1978-01-03 Kabushiki Kaisha Toyota Chuo Kenkyusho Ceramics of silicon nitride
US3836374A (en) * 1972-01-20 1974-09-17 Norton Co Hot pressed silicon nitride
DE2330595A1 (en) * 1972-06-16 1974-01-03 Norton Co MOLDED BODY MADE OF SILICON NITRIDE
DE2300547A1 (en) * 1973-01-08 1973-07-19 Lucas Industries Ltd Silicon aluminium oxynitride - formed by mixing alumina and silicon nitride powders, compressing and sintering
US3989782A (en) 1973-12-29 1976-11-02 Joseph Lucas Limited Method of forming a sintered ceramic product
US4113830A (en) * 1974-03-18 1978-09-12 The United States Of America As Represented By The Secretary Of The Air Force Method of fabricating silicon nitride bodies
US3983198A (en) * 1975-02-12 1976-09-28 Ford Motor Company Method of increasing the oxidation resistance of silicon nitride
US4119690A (en) * 1977-01-03 1978-10-10 General Electric Company Sintering of silicon nitride using Mg and Be additives
FR2376090A1 (en) * 1977-01-03 1978-07-28 Gen Electric PROCESS FOR MANUFACTURING A SRIED BODY OF SILICON NITRIDE
US4119689A (en) * 1977-01-03 1978-10-10 General Electric Company Sintering of silicon nitride using Be additive
US4119475A (en) * 1977-01-03 1978-10-10 General Electric Company Sintering of silicon nitride using Mg and Be additives
US4122140A (en) * 1977-01-03 1978-10-24 General Electric Company Hot pressing of silicon nitride using beryllium additive
US4124402A (en) * 1977-01-03 1978-11-07 General Electric Company Hot pressing of silicon nitride using magnesium silicide
US4124403A (en) * 1977-01-03 1978-11-07 General Electric Company Hot pressing of silicon nitride using beryllium additive
FR2376089A1 (en) * 1977-01-03 1978-07-28 Gen Electric PROCESS FOR MANUFACTURING FRITTED BODIES, PREFORMED IN SILICA NITRIDE
JPS61158871A (en) * 1977-01-03 1986-07-18 ゼネラル・エレクトリツク・カンパニイ Silicon nitride sintered body
US4284432A (en) * 1977-01-13 1981-08-18 Tokyo Shibaura Electric Co. Ltd. Ceramic powder material and method for manufacturing the same
US4341874A (en) * 1977-01-13 1982-07-27 Tokyo Shibaura Electric Co., Ltd. Si3 N4 Ceramic powder material and method for manufacturing the same
WO1980000079A1 (en) * 1978-06-15 1980-01-24 Gte Laboratories Inc Silicon nitride having high temperature and method
US4280850A (en) * 1978-06-15 1981-07-28 Gte Laboratories, Incorporated S13N4 Having high temperature strength and method
US4387079A (en) * 1979-01-10 1983-06-07 Toyo Soda Manufacturing Co., Ltd. Method of manufacturing high-purity silicon nitride powder
US4225356A (en) * 1979-08-13 1980-09-30 General Electric Company Sintering of silicon nitride using Be additive
GB2129788A (en) * 1982-10-01 1984-05-23 British Ceramic Res Ass Silicon nitride ceramic bodies
CN113480318A (en) * 2021-08-18 2021-10-08 河南北星精工技术有限公司 High-thermal-conductivity silicon nitride ceramic and preparation method thereof

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