GB1379169A - Ceramic materials - Google Patents

Ceramic materials

Info

Publication number
GB1379169A
GB1379169A GB948272A GB948272A GB1379169A GB 1379169 A GB1379169 A GB 1379169A GB 948272 A GB948272 A GB 948272A GB 948272 A GB948272 A GB 948272A GB 1379169 A GB1379169 A GB 1379169A
Authority
GB
United Kingdom
Prior art keywords
ceramic materials
weight
wollastonite
march
wollastonites
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
GB948272A
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.)
LafargeHolcim Ciments SA
Original Assignee
Lafarge Ciments SA
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 Lafarge Ciments SA filed Critical Lafarge Ciments SA
Publication of GB1379169A publication Critical patent/GB1379169A/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
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay

Abstract

1379169 Ceramic materials; wollastonites CIMENTS LAFARGE 1 March 1972 [1 March 1971] 9482/72 Addition to 1281589 Headings C1A and C1J A compact ceramic material is obtained by heating at 750‹ to 1150‹ C. under a pressure of 0À01 to 3000 bars, a calcium monosilicate produced by the method disclosed in Specification 1,281,589 and having a SiO 2 to CaO weight ratio 1 to 2À5, and a vitreous phase content of from 80 to 100% by weight up to 15% Al 2 O 3 , up to 3% Fe 2 O 3 , up to 5% MgO, and up to 6% K 2 O and Na 2 O may be included, percentages by weight. A final thermal treatment between 1150 and 1200‹ C. may be performed to convert #-wollastonite to α-wollastonite.
GB948272A 1971-03-01 1972-03-01 Ceramic materials Expired GB1379169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7107000A FR2127246A6 (en) 1971-03-01 1971-03-01

Publications (1)

Publication Number Publication Date
GB1379169A true GB1379169A (en) 1975-01-02

Family

ID=9072684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB948272A Expired GB1379169A (en) 1971-03-01 1972-03-01 Ceramic materials

Country Status (6)

Country Link
AT (1) AT327083B (en)
DE (1) DE2209475A1 (en)
FR (1) FR2127246A6 (en)
GB (1) GB1379169A (en)
IT (1) IT1045559B (en)
LU (1) LU64850A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652534A (en) * 1985-04-30 1987-03-24 Hoya Corporation High-strength glass ceramic containing apatite crystals and a large quantity of wollastonite crystals and process for producing same

Also Published As

Publication number Publication date
AT327083B (en) 1976-01-12
DE2209475A1 (en) 1972-11-30
LU64850A1 (en) 1972-12-05
ATA568971A (en) 1975-03-15
FR2127246A6 (en) 1972-10-13
IT1045559B (en) 1980-06-10

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee