GB2262523A - Production of ceramic filaments - Google Patents

Production of ceramic filaments

Info

Publication number
GB2262523A
GB2262523A GB9300502A GB9300502A GB2262523A GB 2262523 A GB2262523 A GB 2262523A GB 9300502 A GB9300502 A GB 9300502A GB 9300502 A GB9300502 A GB 9300502A GB 2262523 A GB2262523 A GB 2262523A
Authority
GB
United Kingdom
Prior art keywords
silicon
drop
enclosure
molten
filament
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
GB9300502A
Other versions
GB9300502D0 (en
GB2262523B (en
Inventor
Michael Gwyn Hocking
Paulette Shafik Sidky
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
Priority claimed from GB909015872A external-priority patent/GB9015872D0/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9300502A priority Critical patent/GB2262523B/en
Publication of GB9300502D0 publication Critical patent/GB9300502D0/en
Publication of GB2262523A publication Critical patent/GB2262523A/en
Application granted granted Critical
Publication of GB2262523B publication Critical patent/GB2262523B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/565—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 carbides or oxycarbides based on silicon carbide
    • C04B35/573—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 carbides or oxycarbides based on silicon carbide obtained by reaction sintering or recrystallisation
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/10—Chemical after-treatment of artificial filaments or the like during manufacture of carbon
    • D01F11/12—Chemical after-treatment of artificial filaments or the like during manufacture of carbon with inorganic substances ; Intercalation
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/10—Chemical after-treatment of artificial filaments or the like during manufacture of carbon
    • D01F11/12—Chemical after-treatment of artificial filaments or the like during manufacture of carbon with inorganic substances ; Intercalation
    • D01F11/126—Carbides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/10—Chemical after-treatment of artificial filaments or the like during manufacture of carbon
    • D01F11/16—Chemical after-treatment of artificial filaments or the like during manufacture of carbon by physicochemical methods

Landscapes

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

Abstract

Apparatus for producing refractory material filaments comprises an enclosure (11), means for heating the constituents of the refractory material, non-contacting means to support a drop (17) of molten material such as silicon, being one of the constituents of the refractory material within the enclosure and means to transport a filament (10) such as carbon, being a second constituent of the refractory material, through the drop of molten material in use. A levitation coil and/or an inert gas jet is used to support the drop of molten material and a silica glass or other refractory tube (13) is used to direct the gas jet. The enclosure has opposed side arms (15, 16) respectively for entry and exit of the filament (10) or the filament may be passed vertically through the molten silicon drop. An inclined side tube may be provided through which grains of silicon may be introduced into the enclosure for addition to the molten drop. In one form, initial heating of the silicon prior to levitation is achieved by providing a resistively heated silicon nitride platform on which the silicon is melted, the platform then being moved from the field of the levitation coil to leave a levitated silicon drop.
GB9300502A 1990-07-19 1993-01-12 Production of ceramic filaments Expired - Lifetime GB2262523B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9300502A GB2262523B (en) 1990-07-19 1993-01-12 Production of ceramic filaments

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB909015872A GB9015872D0 (en) 1990-07-19 1990-07-19 Production of ceramic filaments
PCT/GB1991/001202 WO1992001649A1 (en) 1990-07-19 1991-07-18 Production of ceramic filaments
GB9300502A GB2262523B (en) 1990-07-19 1993-01-12 Production of ceramic filaments

Publications (3)

Publication Number Publication Date
GB9300502D0 GB9300502D0 (en) 1993-04-14
GB2262523A true GB2262523A (en) 1993-06-23
GB2262523B GB2262523B (en) 1994-03-30

Family

ID=26297353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9300502A Expired - Lifetime GB2262523B (en) 1990-07-19 1993-01-12 Production of ceramic filaments

Country Status (1)

Country Link
GB (1) GB2262523B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032097A1 (en) * 1980-01-02 1981-07-15 SOCIETE EUROPEENNE DE PROPULSION (S.E.P.) Société Anonyme dite: Process for producing a silicon carbide structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032097A1 (en) * 1980-01-02 1981-07-15 SOCIETE EUROPEENNE DE PROPULSION (S.E.P.) Société Anonyme dite: Process for producing a silicon carbide structure

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Chemical Abstracts,vol 77, no.14, October 2,1972, Columbus, Ohio, US; Abstract no.91928N *
Chemical Abstracts,vol. 104, no.20, May 19, 1986,Columbus, Ohio, US; Abstract no. 173252C, *

Also Published As

Publication number Publication date
GB9300502D0 (en) 1993-04-14
GB2262523B (en) 1994-03-30

Similar Documents

Publication Publication Date Title
KR920000634A (en) Selection method of optical fiber
DE68900886D1 (en) APPARATUS AND METHOD FOR PRODUCING UNIFORM, FINE CERAMIC POWDER.
US4612023A (en) Method of manufacturing stria-free, bubble-free and homogeneous quartz-glass plates
GB2199690A (en) Fibre-optic lasers and amplifiers
EP0232077B1 (en) Heating oven for preparing optical waveguide fibers
SG77230A1 (en) System and method for controlled delivery of liquified gases
JPS57155336A (en) Production of fiber-reinforced composite body
GB973870A (en) All electrically heated shaft furnace for melting quartz
AU584335B2 (en) Process for fabrication of optical fibers and components made of fluoride glass and apparatus used to carry out the process
EP0319374A3 (en) Inert atmosphere cooler for optical fibers and method of using the same
US4950319A (en) Heating oven for preparing optical waveguide fibers
EP0539443B1 (en) Production of ceramic filaments
GB2262523A (en) Production of ceramic filaments
ES8102996A1 (en) Method for manufacturing glass fibers
ES2012895A6 (en) Process and outlet sleeve for introducing gas into the outlet of a molten bath, in particular of a receptacle containing molten steel.
JPH04198036A (en) Heating furnace for wire drawing of optical fiber
US4906267A (en) Heating oven for preparing optical waveguide fibers
JPS56109833A (en) Manufacture of base material for optical fiber
CA1315987C (en) Glass drawing process and furnace
DK0512900T3 (en) Method and apparatus for obtaining desired temperature values in a glass stream in a feed line
JPS5619958A (en) Continuous casting method and its apparatus
JPH03261630A (en) Production of high-silica glass part and apparatus therefor
AU2002346778A1 (en) A method and a device in the manufacture of an optical fibre
JPS6469535A (en) Apparatus for producing preform for fluoride glass optical fiber
Wu Twin-Wind Blast System Cupola and Its Structure Design

Legal Events

Date Code Title Description
773H Revocation action is not pursued (sect. 73(2)/1977)