GB1495022A - Glassceramic fibres - Google Patents

Glassceramic fibres

Info

Publication number
GB1495022A
GB1495022A GB2617574A GB2617574A GB1495022A GB 1495022 A GB1495022 A GB 1495022A GB 2617574 A GB2617574 A GB 2617574A GB 2617574 A GB2617574 A GB 2617574A GB 1495022 A GB1495022 A GB 1495022A
Authority
GB
United Kingdom
Prior art keywords
glass
fibres
weight
tio
sio
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
GB2617574A
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 GB2617574A priority Critical patent/GB1495022A/en
Publication of GB1495022A publication Critical patent/GB1495022A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0009—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing silica as main constituent
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0018—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and monovalent metal oxide as main constituents
    • C03C10/0027—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and monovalent metal oxide as main constituents containing SiO2, Al2O3, Li2O as main constituents
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/006—Glass-ceramics fibres

Abstract

1495022 Glass-ceramic fibres UNITED KING- DOM ATOMIC ENERGY AUTHORITY 11 June 1975 [12 June 1974] 26175/74 Heading C1M Glass-ceramic fibres are made by: (i) forming into fibres a crystallizable glass comprising Al 2 O 3 , SiO 2 , 10-18% of Li 2 O, and a TiO 2 additive, the TiO 2 being present in an amount of not more than 5% by weight or not less than 8% by weight (all percentages given relative to the weight of glass excluding TiO 2 ); and (ii) crystallizing the glass fibres. When the TiO 2 content is not more than 5% by weight, the glass-ceramic formed comprises #- eucryptite and lithium metasilicate (Li 2 O.SiO 2 ), the fibres being capillary fibres. The glass used for forming such capillary fibres preferably comprises, by weight, 10-18% Li 2 O, 7À5-15% Al 2 O 3 and 65-75% SiO 2 , the glass being crystallized in a single stage (e.g. heating from ambient to 850‹ C. at 5‹ C./min., holding at 850‹ C. for 2 hours, and cooling at 5‹ C./min.). When the glass contains at least 8% by weight TiO 2 , the glass-ceramic formed is a non-capillary fibre comprising lithium metasilicate (Li 2 O.SiO 2 ) and #-spodumene as crystal phase. Such a glass preferably comprises, by weight, 9-11% TiO 2 , 10-18% Li 2 O, 15-30% Al 2 O 3 and 55-67% SiO 2 , and is crystallized in two stages (e.g. heating from ambient to 600‹ C. at 5‹ C./min., holding at 600‹ C. for 2 hours, heating at 850‹ C. at 5‹ C./min., holding at 850‹ C. for 2 hours, and cooling at 8‹ C./min.). In either embodiment, the glass is preferably formed into a rod, which is drawn down to a fibre before crystallizing.
GB2617574A 1975-06-11 1975-06-11 Glassceramic fibres Expired GB1495022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2617574A GB1495022A (en) 1975-06-11 1975-06-11 Glassceramic fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2617574A GB1495022A (en) 1975-06-11 1975-06-11 Glassceramic fibres

Publications (1)

Publication Number Publication Date
GB1495022A true GB1495022A (en) 1977-12-14

Family

ID=10239523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2617574A Expired GB1495022A (en) 1975-06-11 1975-06-11 Glassceramic fibres

Country Status (1)

Country Link
GB (1) GB1495022A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0861014A1 (en) * 1997-02-14 1998-08-26 Christian Lizen Heating plate, especially cooking plate made from glass-ceramic and method of making the same
WO2013053866A3 (en) * 2011-10-14 2013-08-08 Ivoclar Vivadent Ag Lithium silicate glass ceramic and lithium silicate glass comprising a tetravalent metal oxide
CN109956674A (en) * 2019-05-10 2019-07-02 陕西科技大学 A kind of lithium bisilicate crystalline glass fibre and preparation method thereof
CN113173707A (en) * 2021-06-09 2021-07-27 陕西科技大学 High-density LAS microcrystalline glass fiber and preparation method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0861014A1 (en) * 1997-02-14 1998-08-26 Christian Lizen Heating plate, especially cooking plate made from glass-ceramic and method of making the same
BE1010927A4 (en) * 1997-02-14 1999-03-02 Lizen Christian Hot plate, especially hob ceramic material and method of making the same.
WO2013053866A3 (en) * 2011-10-14 2013-08-08 Ivoclar Vivadent Ag Lithium silicate glass ceramic and lithium silicate glass comprising a tetravalent metal oxide
US9695082B2 (en) 2011-10-14 2017-07-04 Ivoclar Vivadent Ag Lithium silicate glass ceramic and lithium silicate glass comprising a tetravalent metal oxide
US10160687B2 (en) 2011-10-14 2018-12-25 Ivoclar Vivadent Ag Lithium silicate glass ceramic and glass with tetravalent metal oxide
CN109956674A (en) * 2019-05-10 2019-07-02 陕西科技大学 A kind of lithium bisilicate crystalline glass fibre and preparation method thereof
CN109956674B (en) * 2019-05-10 2022-04-26 陕西科技大学 Lithium disilicate microcrystalline glass fiber and preparation method thereof
CN113173707A (en) * 2021-06-09 2021-07-27 陕西科技大学 High-density LAS microcrystalline glass fiber and preparation method thereof

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Legal Events

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