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GB2014972A - Boron nitride fibres - Google Patents

Boron nitride fibres

Info

Publication number
GB2014972A
GB2014972A GB7909581A GB7909581A GB2014972A GB 2014972 A GB2014972 A GB 2014972A GB 7909581 A GB7909581 A GB 7909581A GB 7909581 A GB7909581 A GB 7909581A GB 2014972 A GB2014972 A GB 2014972A
Authority
GB
United Kingdom
Prior art keywords
fibre
boron nitride
carbon
coating
mass
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.)
Granted
Application number
GB7909581A
Other versions
GB2014972B (en
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB7909581A priority Critical patent/GB2014972B/en
Publication of GB2014972A publication Critical patent/GB2014972A/en
Application granted granted Critical
Publication of GB2014972B publication Critical patent/GB2014972B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/01—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes on temporary substrates, e.g. substrates subsequently removed by etching
    • 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
    • C04B35/583—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 boron nitride
    • 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
    • C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
    • 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
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Inorganic Fibers (AREA)

Abstract

Boron nitride fibre material is produced by depositing a coating of boron nitride (BN) on carbon fibre and subsequently heating the thus-coated fibre in a gas, eg air, which reacts with carbon to drive off the carbon as a gaseous product and leave substantially hollow boron nitride fibre constituted by the coating. The BN may be deposited by reacting boron trifluoride with ammonia at elevated temperature. The carbon fibre may be a porous mass, such as a felt or fabric, and the resulting BN fibre mass may be impregnated by further deposition of BN to produce a dense, solid, BN-BN composite material.
GB7909581A 1977-12-29 1979-03-19 Boron nitride fibre Expired GB2014972B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7909581A GB2014972B (en) 1977-12-29 1979-03-19 Boron nitride fibre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5419377 1977-12-29
GB7909581A GB2014972B (en) 1977-12-29 1979-03-19 Boron nitride fibre

Publications (2)

Publication Number Publication Date
GB2014972A true GB2014972A (en) 1979-09-05
GB2014972B GB2014972B (en) 1982-04-28

Family

ID=26267428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7909581A Expired GB2014972B (en) 1977-12-29 1979-03-19 Boron nitride fibre

Country Status (1)

Country Link
GB (1) GB2014972B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402925A (en) * 1981-09-28 1983-09-06 Union Carbide Corporation Porous free standing pyrolytic boron nitride articles
GB2236540A (en) * 1989-07-07 1991-04-10 United Technologies Corp Boron nitride coated fibres
DE4108367C1 (en) * 1991-03-15 1992-08-13 Elektroschmelzwerk Kempten Gmbh, 8000 Muenchen, De
FR2834982A1 (en) * 2002-01-22 2003-07-25 Eads Launch Vehicules PROCESS FOR PRODUCING BORON NITRIDE FIBERS AND FIBERS OBTAINED
FR2834983A1 (en) * 2002-01-22 2003-07-25 Eads Launch Vehicules PROCESS FOR MANUFACTURING BORON NITRIDE FIBERS FROM BORYLBORAZINES

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402925A (en) * 1981-09-28 1983-09-06 Union Carbide Corporation Porous free standing pyrolytic boron nitride articles
EP0076731A3 (en) * 1981-09-28 1984-01-18 Union Carbide Corporation Porous free standing pyrolytic boron nitride articles and method for preparing the same
GB2236540A (en) * 1989-07-07 1991-04-10 United Technologies Corp Boron nitride coated fibres
DE4108367C1 (en) * 1991-03-15 1992-08-13 Elektroschmelzwerk Kempten Gmbh, 8000 Muenchen, De
FR2834982A1 (en) * 2002-01-22 2003-07-25 Eads Launch Vehicules PROCESS FOR PRODUCING BORON NITRIDE FIBERS AND FIBERS OBTAINED
FR2834983A1 (en) * 2002-01-22 2003-07-25 Eads Launch Vehicules PROCESS FOR MANUFACTURING BORON NITRIDE FIBERS FROM BORYLBORAZINES
EP1329436A3 (en) * 2002-01-22 2005-09-28 EADS SPACE Transportation SA Method of production of boron nitride fibers starting from borylborazines
EP1329437A3 (en) * 2002-01-22 2005-09-28 EADS SPACE Transportation SA Method of production of boron nitride fibers and the obtained fibers
US6967179B2 (en) 2002-01-22 2005-11-22 Eads Launch Vehicles Process for manufacturing boron nitride fibers from borylborazines

Also Published As

Publication number Publication date
GB2014972B (en) 1982-04-28

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Legal Events

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