GB1520227A - Oxynitride glass-cermaics - Google Patents

Oxynitride glass-cermaics

Info

Publication number
GB1520227A
GB1520227A GB1906377A GB1906377A GB1520227A GB 1520227 A GB1520227 A GB 1520227A GB 1906377 A GB1906377 A GB 1906377A GB 1906377 A GB1906377 A GB 1906377A GB 1520227 A GB1520227 A GB 1520227A
Authority
GB
United Kingdom
Prior art keywords
glass
weight
sio
hours
temperature
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
GB1906377A
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
Priority to GB1906377A priority Critical patent/GB1520227A/en
Publication of GB1520227A publication Critical patent/GB1520227A/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

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

1520227 Crystallizable glass CORNING GLASS WORKS 6 May 1977 19063/77 Heading C1M A thermally crystallizable glass comprises, by weight, 40-85% SiO 2 , 2À0-17% N, the said SiO 2 and N constituting at least 50% by weight of the composition, and at least 15% M x O y , wherein M x O y consists of at least one oxide selected from the alkali metal oxides e.g. Na 2 O, K 2 O, Li 2 O 2 Cs 2 O, the oxides of the elements of groups IIA and II B of the Periodic table e.g. MgO, CaO, SrO, BaO, BeO, ZnO, B 2 O 3 and Al 2 O 3 , the balance, if any, consisting of other compatible constituents. The glass may contain As 2 O 3 and up to 5% by weight of MnO, Y 2 O 3 , ZrO 2 , La 2 O 3 and F. The crystallized glass obtained is opaque and may be prepared by exposing a body of the crystallizable glass to a temperature of 750-850‹ C. for 1-8 hours and then to a temperature of 900-1300‹C for 2-10 hours.
GB1906377A 1977-05-06 1977-05-06 Oxynitride glass-cermaics Expired GB1520227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1906377A GB1520227A (en) 1977-05-06 1977-05-06 Oxynitride glass-cermaics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1906377A GB1520227A (en) 1977-05-06 1977-05-06 Oxynitride glass-cermaics

Publications (1)

Publication Number Publication Date
GB1520227A true GB1520227A (en) 1978-08-02

Family

ID=10123162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1906377A Expired GB1520227A (en) 1977-05-06 1977-05-06 Oxynitride glass-cermaics

Country Status (1)

Country Link
GB (1) GB1520227A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172282A (en) * 1985-03-11 1986-09-17 English Electric Co Ltd Toughened glass-ceramics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172282A (en) * 1985-03-11 1986-09-17 English Electric Co Ltd Toughened glass-ceramics

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Legal Events

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