GB1028977A - Improvements in or relating to the manufacture of silicon nitride and oxynitride - Google Patents

Improvements in or relating to the manufacture of silicon nitride and oxynitride

Info

Publication number
GB1028977A
GB1028977A GB730862A GB730862A GB1028977A GB 1028977 A GB1028977 A GB 1028977A GB 730862 A GB730862 A GB 730862A GB 730862 A GB730862 A GB 730862A GB 1028977 A GB1028977 A GB 1028977A
Authority
GB
United Kingdom
Prior art keywords
silicon
metal
oxynitride
alloy
carbon
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
GB730862A
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.)
ERIC CAMPBELL SHEARS
Original Assignee
ERIC CAMPBELL SHEARS
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 ERIC CAMPBELL SHEARS filed Critical ERIC CAMPBELL SHEARS
Priority to GB730862A priority Critical patent/GB1028977A/en
Publication of GB1028977A publication Critical patent/GB1028977A/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
    • C04B35/591—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 reaction sintering
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
    • C01B21/068—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with silicon
    • C01B21/0682—Preparation by direct nitridation of silicon
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
    • C01B21/068—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with silicon
    • C01B21/0685—Preparation by carboreductive nitridation

Landscapes

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

Abstract

Silicon nitride, oxynitride or mixtures thereof are prepared by heating silicon, a silicon alloy or a silicon-providing compound in an atmosphere of nitrogen or at least one nitrogen-providing gas, at 1000-1900 DEG C. in the presence of more than 5% by weight of an alkali metal, an alkaline earth metal (including magnesium) or a metal having atomic number 21-30, 39-48 or 57-79 (all inclusive). The catalyst metal may be used as such or as an alloy or compound, e.g. the oxide, hydroxide, carbonate, nitride, nitrite, nitrate, acetate or oxalate. The catalyst metal may also be alloyed with the silicon or present as the metal silicate. With silica or metal silicate, a reducing agent, e.g. carbon, is incorporated therewith, and the relative proportion of carbon determines the composition of the product in terms of silicon nitride and/or silicon oxynitride, or silicon carbide. Reaction may take place in a continuously rotated or vibrated furnace with the reaction mixture in particulate form. Alternatively, the silicon, silicon alloy or other silicon providing substance and the catalyst are initially heated with an organic binder, e.g. sugar, molasses, starch, pitch or tar, which also provides reducing carbon. The reaction mixture may include an inorganic substance which evolves gas on heating, e.g. ammonium nitrate, to increase its porosity.
GB730862A 1962-02-24 1962-02-24 Improvements in or relating to the manufacture of silicon nitride and oxynitride Expired GB1028977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB730862A GB1028977A (en) 1962-02-24 1962-02-24 Improvements in or relating to the manufacture of silicon nitride and oxynitride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB730862A GB1028977A (en) 1962-02-24 1962-02-24 Improvements in or relating to the manufacture of silicon nitride and oxynitride

Publications (1)

Publication Number Publication Date
GB1028977A true GB1028977A (en) 1966-05-11

Family

ID=9830647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB730862A Expired GB1028977A (en) 1962-02-24 1962-02-24 Improvements in or relating to the manufacture of silicon nitride and oxynitride

Country Status (1)

Country Link
GB (1) GB1028977A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2109643A5 (en) * 1970-06-29 1972-05-26 Norton Co
US4208215A (en) * 1974-11-22 1980-06-17 Gte Service Corporation Method for enhancing the crystallization rate of high purity amorphous Si3 N2 powder by intimate contact with a titanium containing material
EP0080050A1 (en) * 1981-11-19 1983-06-01 Kabushiki Kaisha Toshiba Powdery silicon nitride composition and sintered body made thereof and processes for preparing the same
EP0131894A2 (en) * 1983-07-14 1985-01-23 Sumitomo Chemical Company, Limited A method for producing alpha-form silicon nitride fine powders
US4604273A (en) * 1985-04-19 1986-08-05 Gte Products Corporation Process for the growth of alpha silicon nitride whiskers
EP0240414A1 (en) * 1986-04-03 1987-10-07 Elf Atochem S.A. Silicon nitride powders for ceramics obtained by carbothermal reduction, and process for their manufacture
FR2596745A1 (en) * 1986-04-03 1987-10-09 Atochem POWDERS FOR METALLIC CARBIDE AND NITRIDE CERAMICS BY CARBOTHERMIC REDUCTION AND PROCESS FOR PRODUCING THE SAME
US4784839A (en) * 1986-04-03 1988-11-15 Atochem Method of making metal carbide and nitride powders
FR2687393A1 (en) * 1992-02-18 1993-08-20 Atochem Elf Sa CONTINUOUS PROCESS FOR THE PREPARATION OF SILICON NITRIDE BY CARBONITRURATION AND SILICON NITRIDE THUS OBTAINED
FR3045598A1 (en) * 2015-12-21 2017-06-23 Herakles PROCESS FOR PRODUCING A CERAMIC FROM A CHEMICAL REACTION
JP2022541208A (en) * 2019-07-16 2022-09-22 青島瓷興新材料有限公司 Method for producing silicon nitride powder by metal reduction

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2109643A5 (en) * 1970-06-29 1972-05-26 Norton Co
US4208215A (en) * 1974-11-22 1980-06-17 Gte Service Corporation Method for enhancing the crystallization rate of high purity amorphous Si3 N2 powder by intimate contact with a titanium containing material
EP0080050A1 (en) * 1981-11-19 1983-06-01 Kabushiki Kaisha Toshiba Powdery silicon nitride composition and sintered body made thereof and processes for preparing the same
EP0131894A2 (en) * 1983-07-14 1985-01-23 Sumitomo Chemical Company, Limited A method for producing alpha-form silicon nitride fine powders
EP0131894A3 (en) * 1983-07-14 1986-10-08 Sumitomo Chemical Company, Limited A method for producing alpha-form silicon nitride fine powders
US4604273A (en) * 1985-04-19 1986-08-05 Gte Products Corporation Process for the growth of alpha silicon nitride whiskers
EP0247907A3 (en) * 1986-04-03 1988-04-27 Atochem Metal carbide and nitride powders for ceramics obtained by carbothermal reduction, and process for their manufacture
AU597633B2 (en) * 1986-04-03 1990-06-07 Atochem Powders for ceramics of metal carbides and nitrides made by carbothermal reduction and process for their manufacture
FR2596746A1 (en) * 1986-04-03 1987-10-09 Atochem POWDERS FOR SILICON NITRIDE CERAMICS BY CARBOTHERMIC REDUCTION AND METHOD FOR THE PRODUCTION THEREOF
EP0247907A2 (en) * 1986-04-03 1987-12-02 Elf Atochem S.A. Metal carbide and nitride powders for ceramics obtained by carbothermal reduction, and process for their manufacture
EP0240414A1 (en) * 1986-04-03 1987-10-07 Elf Atochem S.A. Silicon nitride powders for ceramics obtained by carbothermal reduction, and process for their manufacture
US4784839A (en) * 1986-04-03 1988-11-15 Atochem Method of making metal carbide and nitride powders
US4851203A (en) * 1986-04-03 1989-07-25 Atochem Metal carbide and nitride powders
FR2596745A1 (en) * 1986-04-03 1987-10-09 Atochem POWDERS FOR METALLIC CARBIDE AND NITRIDE CERAMICS BY CARBOTHERMIC REDUCTION AND PROCESS FOR PRODUCING THE SAME
FR2687393A1 (en) * 1992-02-18 1993-08-20 Atochem Elf Sa CONTINUOUS PROCESS FOR THE PREPARATION OF SILICON NITRIDE BY CARBONITRURATION AND SILICON NITRIDE THUS OBTAINED
EP0557163A1 (en) * 1992-02-18 1993-08-25 Elf Atochem S.A. Continuous process for the preparation of silicon nitride by carbonitridation
FR3045598A1 (en) * 2015-12-21 2017-06-23 Herakles PROCESS FOR PRODUCING A CERAMIC FROM A CHEMICAL REACTION
WO2017109373A1 (en) * 2015-12-21 2017-06-29 Safran Ceramics Method for producing a ceramic from a chemical reaction
CN108698940A (en) * 2015-12-21 2018-10-23 赛峰航空陶瓷技术公司 By the method for chemical reaction production ceramics
US10723658B2 (en) 2015-12-21 2020-07-28 Centre National De La Recherche Scientifique Method of fabricating a ceramic from a chemical reaction
JP2022541208A (en) * 2019-07-16 2022-09-22 青島瓷興新材料有限公司 Method for producing silicon nitride powder by metal reduction

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