GB896655A - Method of making a semicrystalline ceramic body - Google Patents

Method of making a semicrystalline ceramic body

Info

Publication number
GB896655A
GB896655A GB3386160A GB3386160A GB896655A GB 896655 A GB896655 A GB 896655A GB 3386160 A GB3386160 A GB 3386160A GB 3386160 A GB3386160 A GB 3386160A GB 896655 A GB896655 A GB 896655A
Authority
GB
United Kingdom
Prior art keywords
hours
held
per minute
making
ceramic body
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
GB3386160A
Inventor
Raymond Olson Voss
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 GB3386160A priority Critical patent/GB896655A/en
Publication of GB896655A publication Critical patent/GB896655A/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
    • C03C10/0018—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
    • 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

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

896,655. Ceramic glass. CORNING GLASS WORKS. Oct. 3, 1960, No. 33861/60. Class 56. A glass body comprising by weight 71 % SiO 2 , 2.5% Li 2 O, 18% Al 2 O 3 , 4.5% TiO 2 , 3% MgO and 1 % ZnO is heated at a rate not exceeding 5‹C. per minute to 800‹C., held there for 1 hour, heated at a rate not exceeding 5‹C. per minute to 1,080‹C. to 1,120‹C. held there for 4 hours, and cooled at 5‹C. per minute, or faster. Preferably it is held at 1,080‹C. for 2 hours and at 1,120‹C. for 2 hours. The composition may be modified to include small amounts of NaNO 3 and As 2 O 5 as oxidising and fining agents. Specification 857,367 is referred to.
GB3386160A 1960-10-03 1960-10-03 Method of making a semicrystalline ceramic body Expired GB896655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3386160A GB896655A (en) 1960-10-03 1960-10-03 Method of making a semicrystalline ceramic body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3386160A GB896655A (en) 1960-10-03 1960-10-03 Method of making a semicrystalline ceramic body

Publications (1)

Publication Number Publication Date
GB896655A true GB896655A (en) 1962-05-16

Family

ID=10358398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3386160A Expired GB896655A (en) 1960-10-03 1960-10-03 Method of making a semicrystalline ceramic body

Country Status (1)

Country Link
GB (1) GB896655A (en)

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