FR2132269A1 - Low expansion lithium contg glass objects - heat treated and chemically hardened by sodium ion exchange - Google Patents

Low expansion lithium contg glass objects - heat treated and chemically hardened by sodium ion exchange

Info

Publication number
FR2132269A1
FR2132269A1 FR7211306A FR7211306A FR2132269A1 FR 2132269 A1 FR2132269 A1 FR 2132269A1 FR 7211306 A FR7211306 A FR 7211306A FR 7211306 A FR7211306 A FR 7211306A FR 2132269 A1 FR2132269 A1 FR 2132269A1
Authority
FR
France
Prior art keywords
heat treated
contg
ion exchange
sodium ion
low expansion
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.)
Granted
Application number
FR7211306A
Other languages
French (fr)
Other versions
FR2132269B1 (en
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.)
OI Glass Inc
Original Assignee
Owens Illinois Inc
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 Owens Illinois Inc filed Critical Owens Illinois Inc
Publication of FR2132269A1 publication Critical patent/FR2132269A1/en
Application granted granted Critical
Publication of FR2132269B1 publication Critical patent/FR2132269B1/fr
Granted 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
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/002—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to perform ion-exchange between alkali ions
    • 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

Abstract

Object is formed from a crystallisable glass with compsn. in wt%, SiO2 67-75, Al2O3 16.5-22.5, Li2O 3.8-6.2, ZrO2 + TiO2 2.3-3.8, Na2O 0.38-0.62, K2O 0.1-0.25, where mol ratio of Al2O3/R2O is 1-1.35, R2O being an alkali metal oxide. It is then heat treated at 718-774 degrees C for 4-6 hrs. 857-886 degrees C, for 3/4 to 1 1/4 hrs. 954-1204 degrees C for the same time, and then immersed in a NaNO3 salt bath at 399 degrees C for 4 hrs. to set up a surface compressive stress layer.
FR7211306A 1971-04-02 1972-03-30 Low expansion lithium contg glass objects - heat treated and chemically hardened by sodium ion exchange Granted FR2132269A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13077971A 1971-04-02 1971-04-02

Publications (2)

Publication Number Publication Date
FR2132269A1 true FR2132269A1 (en) 1972-11-17
FR2132269B1 FR2132269B1 (en) 1975-06-13

Family

ID=22446286

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7211306A Granted FR2132269A1 (en) 1971-04-02 1972-03-30 Low expansion lithium contg glass objects - heat treated and chemically hardened by sodium ion exchange

Country Status (4)

Country Link
DE (1) DE2211317A1 (en)
FR (1) FR2132269A1 (en)
IT (1) IT957585B (en)
NL (1) NL7204310A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042423A1 (en) * 2003-10-24 2005-05-12 Ppg Industries Ohio, Inc. Lithia-alumina-silica containing glass compositions and glasses suitable for chemical tempering and articles made using the chemically tempered glass
WO2012075068A3 (en) * 2010-11-30 2012-07-19 Corning Incorporated Fusion formed and ion exchanged glass-ceramics

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016101066B3 (en) * 2016-01-21 2017-02-23 Schott Ag Process for the preparation of a preferably non-colored glass-ceramic material with low scattered light content and glass-ceramic material produced according to the process and its use

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1439341A (en) * 1964-05-05 1966-05-20 Corning Glass Works Glass ceramic object, reinforced on its surface by ion exchange
FR1583952A (en) * 1967-04-13 1969-12-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1439341A (en) * 1964-05-05 1966-05-20 Corning Glass Works Glass ceramic object, reinforced on its surface by ion exchange
FR1583952A (en) * 1967-04-13 1969-12-12

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042423A1 (en) * 2003-10-24 2005-05-12 Ppg Industries Ohio, Inc. Lithia-alumina-silica containing glass compositions and glasses suitable for chemical tempering and articles made using the chemically tempered glass
US7727917B2 (en) 2003-10-24 2010-06-01 Schott Ag Lithia-alumina-silica containing glass compositions and glasses suitable for chemical tempering and articles made using the chemically tempered glass
WO2012075068A3 (en) * 2010-11-30 2012-07-19 Corning Incorporated Fusion formed and ion exchanged glass-ceramics
US8883663B2 (en) 2010-11-30 2014-11-11 Corning Incorporated Fusion formed and ion exchanged glass-ceramics
US9440877B2 (en) 2010-11-30 2016-09-13 Corning Incorporated Fusion formed and ion exchanged glass-ceramics
US9850163B2 (en) 2010-11-30 2017-12-26 Corning Incorporated Fusion formed and ion exchanged glass-ceramics

Also Published As

Publication number Publication date
FR2132269B1 (en) 1975-06-13
IT957585B (en) 1973-10-20
NL7204310A (en) 1972-10-04
DE2211317A1 (en) 1972-10-12

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Legal Events

Date Code Title Description
ST Notification of lapse