GB1246694A - Glass-ceramic articles - Google Patents

Glass-ceramic articles

Info

Publication number
GB1246694A
GB1246694A GB189869A GB189869A GB1246694A GB 1246694 A GB1246694 A GB 1246694A GB 189869 A GB189869 A GB 189869A GB 189869 A GB189869 A GB 189869A GB 1246694 A GB1246694 A GB 1246694A
Authority
GB
United Kingdom
Prior art keywords
glass
silicon
elemental silicon
hours
mgo
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
GB189869A
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.)
Corning Glass Works
Original Assignee
Corning Glass Works
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 Corning Glass Works filed Critical Corning Glass Works
Publication of GB1246694A publication Critical patent/GB1246694A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36Component parts
    • E02F3/40Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C10/00Devitrified 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
    • C03C10/0018Devitrified 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
    • C03C10/0027Devitrified 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
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C10/00Devitrified 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
    • C03C10/0036Devitrified 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 a divalent metal oxide as main constituents
    • C03C10/0045Devitrified 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 a divalent metal oxide as main constituents containing SiO2, Al2O3 and MgO as main constituents

Abstract

1,246,694. Glass-ceramic. CORNING GLASS WORKS. 13 Jan., 1969 [19 Jan., 1968]. No. 1898/69. Heading C1M. A glass-ceramic article (usually coloured) is formed by melting a batch for a silicate glass which contains no metal oxide that is reduced by elemental silicon or silicon monoxide, and to which 0À15-2% by weight elemental silicon has been added, or to which a reducing agent has been added so as to produce silicon monoxide and/or elemental silicon in an amount equivalent to 0.15-2% elemental silicon, simultaneously cooling the melt at least below the transformation range and shaping a glass body therefrom, and subsequently heating the body to 750-1400‹ C. to develop the in situ crystallization. The reducing agent may be sugar, dextrose, graphite or silicon carbide. The period of crystallization is preferably “-48 hours, preferably 2-8 hours at 750-900‹ C. followed by 2-12 hours at 1000-1300‹ C. The silicate glass preferably consists essentially of Li 2 O, MgO, Al 2 O 3 and SiO 2 or MgO, Al 2 O 3 and SiO 2 , together with 0.15-2% by weight elemental silicon. Examples of suitable glasses are given.
GB189869A 1968-01-19 1969-01-13 Glass-ceramic articles Expired GB1246694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69904868A 1968-01-19 1968-01-19

Publications (1)

Publication Number Publication Date
GB1246694A true GB1246694A (en) 1971-09-15

Family

ID=24807718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189869A Expired GB1246694A (en) 1968-01-19 1969-01-13 Glass-ceramic articles

Country Status (8)

Country Link
BE (1) BE727075A (en)
BR (1) BR6905562D0 (en)
CH (1) CH490282A (en)
DE (1) DE1902099A1 (en)
FR (1) FR1594311A (en)
GB (1) GB1246694A (en)
NL (1) NL6900824A (en)
SE (1) SE336645B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013092931A1 (en) * 2011-12-22 2013-06-27 Commissariat à l'énergie atomique et aux énergies alternatives Method for assembling parts made of sic materials by means of non-reactive brazing in an oxidizing atmosphere, brazing compositions, and gasket and assembly obtained by said method
WO2014132122A3 (en) * 2013-02-28 2015-04-16 Eurokera Non-opaque arsenic-free beta-spodumene glass ceramic exhibiting brown-grey coloration
US9593040B2 (en) 2013-02-28 2017-03-14 Eurokera Non-opaque arsenic-free beta-spodumene glass ceramic exhibiting brown-grey coloration

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013092931A1 (en) * 2011-12-22 2013-06-27 Commissariat à l'énergie atomique et aux énergies alternatives Method for assembling parts made of sic materials by means of non-reactive brazing in an oxidizing atmosphere, brazing compositions, and gasket and assembly obtained by said method
FR2984784A1 (en) * 2011-12-22 2013-06-28 Commissariat Energie Atomique METHOD FOR ASSEMBLING SIC - BASED MATERIAL PARTS BY NON - REACTIVE BRAZING USING THE OXIDIZING ATMOSPHERE PROCEDE. BRAZING COMPOSITIONS, AND JOINT AND ASSEMBLY OBTAINED BY THIS PROCESS.
JP2015502910A (en) * 2011-12-22 2015-01-29 コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ Method for assembling an article made of SiC material by non-reactive brazing in an oxidizing atmosphere, brazing composition, and gasket and assembly obtained by the above method
US9776929B2 (en) 2011-12-22 2017-10-03 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method for assembling parts made of SiC materials by means of non-reactive brazing in an oxidizing atmosphere, brazing compositions, and gasket and assembly obtained by said method
WO2014132122A3 (en) * 2013-02-28 2015-04-16 Eurokera Non-opaque arsenic-free beta-spodumene glass ceramic exhibiting brown-grey coloration
CN105143126A (en) * 2013-02-28 2015-12-09 欧罗克拉公司 Non-opaque arsenic-free beta-spodumene glass ceramic exhibiting brown-grey coloration
JP2016516650A (en) * 2013-02-28 2016-06-09 ユーロケラ Non-opaque arsenic-free beta-spodumene glass ceramic with brownish gray color
US9593040B2 (en) 2013-02-28 2017-03-14 Eurokera Non-opaque arsenic-free beta-spodumene glass ceramic exhibiting brown-grey coloration
US10160685B2 (en) 2013-02-28 2018-12-25 Eurokera Non-opaque arsenic-free beta-spodumene glass ceramic exhibiting brown-grey coloration
CN105143126B (en) * 2013-02-28 2019-07-09 欧罗克拉公司 Show brown-grey colour developing non-opacity, without arsenic beta-spodumene glass glass ceramics

Also Published As

Publication number Publication date
NL6900824A (en) 1969-07-22
CH490282A (en) 1970-05-15
BE727075A (en) 1969-07-17
FR1594311A (en) 1970-06-01
BR6905562D0 (en) 1973-02-01
SE336645B (en) 1971-07-12
DE1902099A1 (en) 1969-09-18

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