GB1508798A - Porous silicon nitride bodies - Google Patents

Porous silicon nitride bodies

Info

Publication number
GB1508798A
GB1508798A GB3951074A GB3951074A GB1508798A GB 1508798 A GB1508798 A GB 1508798A GB 3951074 A GB3951074 A GB 3951074A GB 3951074 A GB3951074 A GB 3951074A GB 1508798 A GB1508798 A GB 1508798A
Authority
GB
United Kingdom
Prior art keywords
cordierite
silicon nitride
porous silicon
impregnated
nitride bodies
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
GB3951074A
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 GB3951074A priority Critical patent/GB1508798A/en
Priority to DE19752540015 priority patent/DE2540015A1/en
Priority to JP10987675A priority patent/JPS5154604A/en
Priority to US05/806,062 priority patent/US4143182A/en
Publication of GB1508798A publication Critical patent/GB1508798A/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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/86—Glazes; Cold glazes
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/87—Ceramics

Landscapes

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

Abstract

1508798 Silicon nitride impregnated with cordierite UNITED KINGDOM ATOMIC ENERGY AUTHORITY 28 Aug 1975 [10 Sept 1974] 39510/74 Heading C1J [Also in Division C7] A porous Si 3 N 4 body has its pores at least partially filled with a refractory comprising cordierite The cordierite may be introduced by impregnating the Si 3 N 4 with MgO and Al 2 O 3 by immer sion in aqueous solutions of Mg(NO 3 ) and Al- (NO 3 ) 2 and firing to decompose the nitrates. The impregnated Si 3 N 4 is then heated in air above 1000‹C to partially oxidize the Si 3 N 4 and finally fired in a non oxidizing atmosphere e.g. at 1300-1380‹C or 1400-1500‹C in nitrogen when silicon oxynitride is formed. The cordierite content is preferably 10-15% by wt. based on the Si 3 N 4 and 1-2% of the oxides of Li, Ca, Mn and Y may also be present.
GB3951074A 1974-09-10 1974-09-10 Porous silicon nitride bodies Expired GB1508798A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3951074A GB1508798A (en) 1974-09-10 1974-09-10 Porous silicon nitride bodies
DE19752540015 DE2540015A1 (en) 1974-09-10 1975-09-09 POROESE SILICON NITRIDE BODY AND PROCESS FOR ITS MANUFACTURING
JP10987675A JPS5154604A (en) 1974-09-10 1975-09-10 Takoshitsutaioyobi sonoseizohoho
US05/806,062 US4143182A (en) 1974-09-10 1977-06-13 Porous bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3951074A GB1508798A (en) 1974-09-10 1974-09-10 Porous silicon nitride bodies

Publications (1)

Publication Number Publication Date
GB1508798A true GB1508798A (en) 1978-04-26

Family

ID=10409952

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3951074A Expired GB1508798A (en) 1974-09-10 1974-09-10 Porous silicon nitride bodies

Country Status (3)

Country Link
JP (1) JPS5154604A (en)
DE (1) DE2540015A1 (en)
GB (1) GB1508798A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542109A (en) * 1983-08-09 1985-09-17 Gte Laboratories Incorporated Silicon nitride-cordierite ceramic article, and process of manufacture thereof
JPS60200881A (en) * 1984-03-27 1985-10-11 株式会社東芝 Ceramic sintered body and manufacture
CH660176A5 (en) * 1984-07-06 1987-03-31 Bbc Brown Boveri & Cie METAL-CERAMIC COMPOSITE ELEMENT AND METHOD FOR THE PRODUCTION THEREOF.
JPH0522260Y2 (en) * 1985-02-12 1993-06-08
US4834938A (en) * 1988-04-25 1989-05-30 The Dow Chemical Company Method for making composite articles that include complex internal geometry
GB8908965D0 (en) * 1989-04-20 1989-06-07 T & N Technology Ltd Treatment of reaction bonded silicon nitride articles
LU88773A1 (en) * 1996-06-19 1997-12-19 Euratom Refractory composite materials protected against high temperature oxidation precursors of said materials their preparations

Also Published As

Publication number Publication date
JPS5154604A (en) 1976-05-13
DE2540015A1 (en) 1976-03-25

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Legal Events

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