GB1095253A - Improvements in and relating to the production of semi-crystalline glass articles - Google Patents

Improvements in and relating to the production of semi-crystalline glass articles

Info

Publication number
GB1095253A
GB1095253A GB156765A GB156765A GB1095253A GB 1095253 A GB1095253 A GB 1095253A GB 156765 A GB156765 A GB 156765A GB 156765 A GB156765 A GB 156765A GB 1095253 A GB1095253 A GB 1095253A
Authority
GB
United Kingdom
Prior art keywords
semi
li2o
crystalline glass
glass
articles
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
GB156765A
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.)
Anchor Hocking Glass Corp
Original Assignee
Anchor Hocking Glass Corp
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 Anchor Hocking Glass Corp filed Critical Anchor Hocking Glass Corp
Publication of GB1095253A publication Critical patent/GB1095253A/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
    • C03C10/0036—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 a divalent metal oxide as main constituents
    • C03C10/0045—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 a divalent metal oxide as main constituents containing SiO2, Al2O3 and MgO 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

A semi-crystalline glass consists essentially, in per cent by weight, of: SiO2, 52-70; B2O3, 1-6; Al2O3, 15-30; MgO, 2-7; Li2O, 2.75-6.25; and crystallization promoters, being: ZrO2, 2-4; SnO2, 0.5-3. The composition consists of fine crystals of the Li2O/Al2O3/SiO2 system formed in a glassy matrix. The batch is melted at 2700-2950 DEG F., and the glass is worked or formed at 2000-2600 DEG F. The articles are then cooled to below the nucleating temperature, and are then reheated to 1600-1800 DEG F. until sufficient crystallization occurs. The reheating may follow immediately upon the cooling, or after an interval, e.g. for annealing and decorating. The articles are usually translucent and may be white, or coloured by impurities. The non-crystallized glass and the semi-crystalline glass may have coefficients of expansion of 13.7 x 10-7 and 30 x 10-7/ DEG C. respectively. The crystals formed are probably b -spodumene, Li2O.Al2O3.4SiO2.
GB156765A 1964-01-13 1965-01-13 Improvements in and relating to the production of semi-crystalline glass articles Expired GB1095253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33717364A 1964-01-13 1964-01-13

Publications (1)

Publication Number Publication Date
GB1095253A true GB1095253A (en) 1967-12-13

Family

ID=23319418

Family Applications (1)

Application Number Title Priority Date Filing Date
GB156765A Expired GB1095253A (en) 1964-01-13 1965-01-13 Improvements in and relating to the production of semi-crystalline glass articles

Country Status (5)

Country Link
BE (1) BE658239A (en)
DE (1) DE1496052B2 (en)
GB (1) GB1095253A (en)
LU (1) LU47773A1 (en)
NL (1) NL6500361A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097049A1 (en) * 1982-06-14 1983-12-28 Corning Glass Works Strengthened glass-ceramic article method of manufacture
GB2172282A (en) * 1985-03-11 1986-09-17 English Electric Co Ltd Toughened glass-ceramics
WO2004076367A1 (en) * 2003-02-21 2004-09-10 Schott Ag Glass substrate for a data storage medium and a data memory comprising a glass substrate of this type
WO2016003960A1 (en) * 2014-06-30 2016-01-07 Corning Incorporated WHITE, OPAQUE, ß-SPODUMENE GLASS-CERAMIC ARTICLES WITH INHERENT DAMAGE RESISTANCE AND METHODS FOR MAKING THE SAME
US9546106B2 (en) 2014-06-30 2017-01-17 Corning Incorporated White, opaque, βspodumene glass-ceramic articles with tunable color and methods for making the same
CN111977969A (en) * 2020-08-31 2020-11-24 成都光明光电股份有限公司 Optical glass, glass preform, optical element and optical instrument

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4857485A (en) * 1987-10-14 1989-08-15 United Technologies Corporation Oxidation resistant fiber reinforced composite article

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097049A1 (en) * 1982-06-14 1983-12-28 Corning Glass Works Strengthened glass-ceramic article method of manufacture
GB2172282A (en) * 1985-03-11 1986-09-17 English Electric Co Ltd Toughened glass-ceramics
WO2004076367A1 (en) * 2003-02-21 2004-09-10 Schott Ag Glass substrate for a data storage medium and a data memory comprising a glass substrate of this type
JP2017519711A (en) * 2014-06-30 2017-07-20 コーニング インコーポレイテッド White opaque β-spodumene glass ceramic article having inherent damage resistance and method for producing the same
US9546106B2 (en) 2014-06-30 2017-01-17 Corning Incorporated White, opaque, βspodumene glass-ceramic articles with tunable color and methods for making the same
CN106660861A (en) * 2014-06-30 2017-05-10 康宁股份有限公司 White, opaque, [beta]-spodumene glass-ceramic articles with inherent damage resistance and methods for making the same
WO2016003960A1 (en) * 2014-06-30 2016-01-07 Corning Incorporated WHITE, OPAQUE, ß-SPODUMENE GLASS-CERAMIC ARTICLES WITH INHERENT DAMAGE RESISTANCE AND METHODS FOR MAKING THE SAME
US9751798B2 (en) 2014-06-30 2017-09-05 Corning Incorporated White, opaque,β-spodumene glass-ceramic articles with inherent damage resistance and methods for making the same
US10017414B2 (en) 2014-06-30 2018-07-10 Corning Incorporated White, opaque, β-spodumene glass-ceramic articles with tunable color and methods for making the same
US10189735B2 (en) 2014-06-30 2019-01-29 Corning Incorporated White, opaque, β spodumene glass-ceramic articles with inherent damage resistance and methods for making the same
US10584056B2 (en) 2014-06-30 2020-03-10 Corning Incorporated White, opaque, β-spodumene glass-ceramic articles with tunable color and methods for making the same
US10781131B2 (en) 2014-06-30 2020-09-22 Corning Incorporated White, opaque, β-spodumene glass-ceramic articles with inherent damage resistance and methods for making the same
EP3901109A1 (en) * 2014-06-30 2021-10-27 Corning Incorporated White, opaque, spodumene glass-ceramic articles with inherent damage resistance and methods for making the same
CN111977969A (en) * 2020-08-31 2020-11-24 成都光明光电股份有限公司 Optical glass, glass preform, optical element and optical instrument

Also Published As

Publication number Publication date
DE1496052B2 (en) 1971-04-22
LU47773A1 (en) 1965-05-11
DE1496052A1 (en) 1969-02-20
NL6500361A (en) 1965-07-14
BE658239A (en) 1965-04-30

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