GB1334476A - Coated boron filament and production thereof - Google Patents

Coated boron filament and production thereof

Info

Publication number
GB1334476A
GB1334476A GB1907972A GB1907972A GB1334476A GB 1334476 A GB1334476 A GB 1334476A GB 1907972 A GB1907972 A GB 1907972A GB 1907972 A GB1907972 A GB 1907972A GB 1334476 A GB1334476 A GB 1334476A
Authority
GB
United Kingdom
Prior art keywords
boron
filament
halide
hydrocarbon
reaction tube
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
GB1907972A
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.)
Defense National France
Original Assignee
Defense National France
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 Defense National France filed Critical Defense National France
Publication of GB1334476A publication Critical patent/GB1334476A/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
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/32—Carbides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
    • C22C47/02—Pretreatment of the fibres or filaments
    • C22C47/04—Pretreatment of the fibres or filaments by coating, e.g. with a protective or activated covering
    • 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
    • C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/54—Apparatus specially adapted for continuous coating
    • C23C16/545—Apparatus specially adapted for continuous coating for coating elongated substrates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/268—Monolayer with structurally defined element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2916—Rod, strand, filament or fiber including boron or compound thereof [not as steel]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Inorganic Fibers (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

1334476 Coating boron filaments with boron carbide FRANCE ARMED FORCES - MINISTER OF 25 April 1972 [11 May 1971] 19079/72 Heading C7F A boron filament, preferably a tungsten boride core with a boron coating, is coated with a B 4 C layer 15 micron maximum thickness by heating the filament to 900-1300‹C. in a gas mixture of H 2 , a hydrocarbon and a boron halide. The halide is preferably BCl 3 but may also be a fluoride or bromide and the hydrocarbon is preferably methane. The boron filament ions fed into glass reaction tube 1 via passage 4 in insulating plugs 5 at each end of the tube. The passages 4 are supplied with Hg via conduit 7 which acts as an electrical contact for electrical resistance heating of the filament and as a liquid seal for the tube. The halide and H 2 are supplied by conduit 9, the hydrocarbon via conduit 12 and the gases are exhausted at 8. A W filament is preferably borided with BCl 3 +H 2 in a first reaction tube prior to passing to the B 4 C reaction tube.
GB1907972A 1971-05-11 1972-04-25 Coated boron filament and production thereof Expired GB1334476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717116885A FR2136978B1 (en) 1971-05-11 1971-05-11

Publications (1)

Publication Number Publication Date
GB1334476A true GB1334476A (en) 1973-10-17

Family

ID=9076789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1907972A Expired GB1334476A (en) 1971-05-11 1972-04-25 Coated boron filament and production thereof

Country Status (9)

Country Link
US (1) US3846224A (en)
JP (1) JPS5237996B1 (en)
BE (1) BE783279A (en)
CA (1) CA967065A (en)
DE (1) DE2221943C3 (en)
FR (1) FR2136978B1 (en)
GB (1) GB1334476A (en)
IT (1) IT960382B (en)
NL (1) NL157354B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112553602A (en) * 2020-12-04 2021-03-26 安徽贝意克设备技术有限公司 Chemical vapor deposition equipment for boron nitride composite fibers
CN112553603A (en) * 2020-12-04 2021-03-26 安徽贝意克设备技术有限公司 Internal heating type boron nitride composite fiber chemical vapor deposition equipment

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888661A (en) * 1972-08-04 1975-06-10 Us Army Production of graphite fiber reinforced metal matrix composites
US3993818A (en) * 1975-02-28 1976-11-23 United Technologies Corporation Resin bonded composite articles and process for fabrication thereof
US4029838A (en) * 1975-09-24 1977-06-14 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Hybrid composite laminate structures
US4287259A (en) * 1979-12-05 1981-09-01 The United States Of America As Represented By The United States Department Of Energy Preparation and uses of amorphous boron carbide coated substrates
US4358473A (en) * 1981-05-22 1982-11-09 Avco Corporation Process control system
FR2508381A1 (en) * 1981-06-26 1982-12-31 Poudres & Explosifs Ste Nale Fibre reinforced metal composite tubes - wound from single layer panels
FR2566806B1 (en) * 1984-06-27 1986-12-05 Diamant Boart Sa PROCESS FOR PRODUCING BORON CARBIDE COATINGS AND COATINGS OBTAINED
US4877649A (en) * 1987-09-08 1989-10-31 United Technologies Corporation Coating of boron particles
US5429870A (en) * 1992-12-17 1995-07-04 United Technologies Corporation Boron carbide coated refractory fibers
US6235675B1 (en) * 1998-09-22 2001-05-22 Idaho Research Foundation, Inc. Methods of forming materials containing carbon and boron, methods of forming catalysts, filaments comprising boron and carbon, and catalysts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112553602A (en) * 2020-12-04 2021-03-26 安徽贝意克设备技术有限公司 Chemical vapor deposition equipment for boron nitride composite fibers
CN112553603A (en) * 2020-12-04 2021-03-26 安徽贝意克设备技术有限公司 Internal heating type boron nitride composite fiber chemical vapor deposition equipment

Also Published As

Publication number Publication date
CA967065A (en) 1975-05-06
DE2221943C3 (en) 1978-04-27
DE2221943B2 (en) 1977-08-25
IT960382B (en) 1973-11-20
DE2221943A1 (en) 1972-12-21
JPS5237996B1 (en) 1977-09-26
FR2136978B1 (en) 1973-05-11
BE783279A (en) 1972-11-10
NL7206305A (en) 1972-11-14
NL157354B (en) 1978-07-17
US3846224A (en) 1974-11-05
FR2136978A1 (en) 1972-12-29

Similar Documents

Publication Publication Date Title
GB1334476A (en) Coated boron filament and production thereof
US4068037A (en) Silicon carbide filaments and method
GB1061042A (en) Improvements in the methods for the production of vitreous silica
CA1269061C (en) Process for the production of diamond-like carbon coatings
GB1442294A (en) Method and apparatus for vapour depositing pyrolytic graphite on porous sheets of carbon material
GB1514860A (en) Process for converting naturally occuring hydrocarbon fuels into gaseous products by an arc heater
GB1398815A (en) Carbon-boron surfaced carbon filament
GB1020918A (en) A gas diffusion electrode
GB1278077A (en) Process for the production of acetylene, or acetylene and ethylene by pyrolysis of hydrocarbons
GB997143A (en) Improvements in or relating to electrode structures for magnetohydrodynamic generators
GB1134133A (en) Drawing quartz fibres and coating with carbon
GB1100396A (en) Improvements in metallic carbide and/or boride article and method for its production
GB1334561A (en) Boron deposition on carbon monofilament
US3679475A (en) Method for producing boron-carbon fibers
Srivastava et al. Thermodynamic properties of the B—Cl—F system from mass spectrometer investigations
GB1134865A (en) Improvements in and relating to electric discharge lamps
US3861953A (en) Node-free boron composite filament
GB787458A (en) Improvements relating to indirectly heated cathodes for thermionic valves
GB1190824A (en) Improvements in Low Temperature Method for Producing Amorphous Boron-Carbon Deposits
GB541550A (en) Improvements in electrodes for discharge devices wherein an electric discharge passes through a gaseous medium
GB967565A (en) Alloys containing pyrolytic graphite
GB1371365A (en) Arc furnace electrodes
ES293588A1 (en) Improvements in or relating to incandescent lamps
GB1271681A (en) Hollow carbon or graphite arc electrons
GB1140861A (en) Fuel burners

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years