GB1317726A - Methods of manufacturing electrical conductors - Google Patents

Methods of manufacturing electrical conductors

Info

Publication number
GB1317726A
GB1317726A GB1317726DA GB1317726A GB 1317726 A GB1317726 A GB 1317726A GB 1317726D A GB1317726D A GB 1317726DA GB 1317726 A GB1317726 A GB 1317726A
Authority
GB
United Kingdom
Prior art keywords
binder
artefact
added
product
june
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
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 Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of GB1317726A publication Critical patent/GB1317726A/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/14—Conductive material dispersed in non-conductive inorganic material
    • H01B1/18—Conductive material dispersed in non-conductive inorganic material the conductive material comprising carbon-silicon compounds, carbon or silicon

Landscapes

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

Abstract

1317726 Silicon nitride refractories UNITED KINGDOM ATOMIC ENERGY AUTHORITY 19 June 1970 [25 June 1969] 32201/69 Headings C1A and ClJ [Also in Division H5] An Si 3 N 4 conductor is made by mixing Si powder, particulate electrically conductive C, and one or more binders which enable the mix to remain plastic while forming an artefact but can be set to form an unnitrided set artefact, forming a plastic artefact, setting the binder and heating under N 2 to form the product, the heating being carried out so as to avoid reaction between the Si or N 2 and the carbon. Preferably the heat treatment is performed initially at a temperature below that at which Si and C will react, for a sufficient time to form Si 3 N 4 , followed by treatment at high temperature to complete the reaction. The preferred carbon is graphite. A fugitive material may be added to the mix, to be later removed to give a porous product. The porosity or conductivity of the product may be varied throughout its body by varying the amount of fugitive or conductive material throughout the body. The binder may be added in solution, which may be in methyl ethyl ketone, and a plasticizer may be added. A single binder having both thermoplastic and thermosetting properties, e.g. polyvinylbutyral may be used, or a thermoplastic binder, e.g. PVA may be used in conjunction with a thermosetting binder, e.g. an acrylic resin.
GB1317726D 1969-06-25 1969-06-25 Methods of manufacturing electrical conductors Expired GB1317726A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3220169 1969-06-25

Publications (1)

Publication Number Publication Date
GB1317726A true GB1317726A (en) 1973-05-23

Family

ID=10334867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1317726D Expired GB1317726A (en) 1969-06-25 1969-06-25 Methods of manufacturing electrical conductors

Country Status (1)

Country Link
GB (1) GB1317726A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0113846A1 (en) * 1982-12-20 1984-07-25 GTE Laboratories Incorporated Composition for injection molding
GB2163737A (en) * 1984-08-07 1986-03-05 Kurosaki Refractories Co Method for production of a high-density silicon nitride reaction sintered body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0113846A1 (en) * 1982-12-20 1984-07-25 GTE Laboratories Incorporated Composition for injection molding
GB2163737A (en) * 1984-08-07 1986-03-05 Kurosaki Refractories Co Method for production of a high-density silicon nitride reaction sintered body

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Legal Events

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