GB1363630A - Fabrication of permeable sintered artefacts - Google Patents

Fabrication of permeable sintered artefacts

Info

Publication number
GB1363630A
GB1363630A GB5514370A GB5514370A GB1363630A GB 1363630 A GB1363630 A GB 1363630A GB 5514370 A GB5514370 A GB 5514370A GB 5514370 A GB5514370 A GB 5514370A GB 1363630 A GB1363630 A GB 1363630A
Authority
GB
United Kingdom
Prior art keywords
refractory
firing
silicon
permeable
nov
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
GB5514370A
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
Priority to GB5514370A priority Critical patent/GB1363630A/en
Publication of GB1363630A publication Critical patent/GB1363630A/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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/6342—Polyvinylacetals, e.g. polyvinylbutyral [PVB]
    • 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
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers

Abstract

1363630 Permeable refractory article UNITED KINGDOM ATOMIC ENERGY AUTHORITY 19 Nov 1971 [19 Nov 1970] 55143/70 Headings C1A and C1J [Also in Division B5] Permeable sintered articles which are electrically conductive are formed by granulating a first refractory material which is electrically insulating and which has previously been densified by firing, coating the granules with a slurry comprising a powdered second refractory, a third material, a resin binder and solvent therefor, removing the solvent, shaping the coated granules into a green artefact and firing, the second and third materials being reactive with each other to produce in situ an electrically conductive phase. The resin binder may be thermoplastic or thermosetting or may provide both thermoplastic and thermosetting properties, e.g. polyvinyl butyral. The refractory may be a ceramic, cermet, metal or a mixture thereof. The first refractory may be silicon nitride, the second silicon and the third material may be graphite. Firing may be carried out in two stages, the first stage converting silicon and graphite into silicon carbide and the second at a higher temperature to produce silicon nitride.
GB5514370A 1971-11-19 1971-11-19 Fabrication of permeable sintered artefacts Expired GB1363630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5514370A GB1363630A (en) 1971-11-19 1971-11-19 Fabrication of permeable sintered artefacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5514370A GB1363630A (en) 1971-11-19 1971-11-19 Fabrication of permeable sintered artefacts

Publications (1)

Publication Number Publication Date
GB1363630A true GB1363630A (en) 1974-08-14

Family

ID=10473084

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5514370A Expired GB1363630A (en) 1971-11-19 1971-11-19 Fabrication of permeable sintered artefacts

Country Status (1)

Country Link
GB (1) GB1363630A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005424A1 (en) * 1985-03-15 1986-09-25 MTU MOTOREN- UND TURBINEN-UNION MüNCHEN GMBH Production process for sintered compacts
EP0564257A2 (en) * 1992-03-31 1993-10-06 Isuzu Motors Limited Low thermal conductivity ceramic and process for producing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005424A1 (en) * 1985-03-15 1986-09-25 MTU MOTOREN- UND TURBINEN-UNION MüNCHEN GMBH Production process for sintered compacts
EP0564257A2 (en) * 1992-03-31 1993-10-06 Isuzu Motors Limited Low thermal conductivity ceramic and process for producing the same
EP0564257A3 (en) * 1992-03-31 1994-05-11 Isuzu Motors Ltd Low thermal conductivity ceramic and process for producing the same
US5403792A (en) * 1992-03-31 1995-04-04 Isuzu Motors Limited Low thermal conductivity ceramic and process for producing the same

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Legal Events

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