GB905657A - Method of stressing the surface of a sample of vitreous silica - Google Patents

Method of stressing the surface of a sample of vitreous silica

Info

Publication number
GB905657A
GB905657A GB4164459A GB4164459A GB905657A GB 905657 A GB905657 A GB 905657A GB 4164459 A GB4164459 A GB 4164459A GB 4164459 A GB4164459 A GB 4164459A GB 905657 A GB905657 A GB 905657A
Authority
GB
United Kingdom
Prior art keywords
sample
silica
water content
heating
giving
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
GB4164459A
Inventor
Kenneth Henderson Jack
John Alexander Winterburn
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.)
Thermal Syndicate Ltd
Original Assignee
Thermal Syndicate Ltd
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 Thermal Syndicate Ltd filed Critical Thermal Syndicate Ltd
Priority to GB4164459A priority Critical patent/GB905657A/en
Publication of GB905657A publication Critical patent/GB905657A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C03C23/00Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/007Other surface treatment of glass not in the form of fibres or filaments by thermal treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Melting And Manufacturing (AREA)

Abstract

905,657. Stressing silica. THERMAL SYNDICATE Ltd. Dec. 7, 1960 [Dec. 8, 1959 June 22, 1960], Nos. 41644/59 and 21817/60. Class 56. The surface of a sample of vitreous silica is stressed by heating the sample in an atmosphere having a partial pressure of water vapour which is in marked dis-equilibrium with the constituent water content of the sample. Examples are as follows:-heating low-constituent water content silica in pure steam at 850‹ C. for 18 hours giving compressive strain; heating moderate constituent water content silica at 1000‹ C. for several hours in an atmosphere at a higher partial pressure giving extensive strain and heating high constituent water content silica in a substantially dry atmosphere for several hours at 1000‹ C., giving a compressive strain. The first Provisional Specification also includes the subject-matter of Specification 905,658.
GB4164459A 1959-12-08 1959-12-08 Method of stressing the surface of a sample of vitreous silica Expired GB905657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4164459A GB905657A (en) 1959-12-08 1959-12-08 Method of stressing the surface of a sample of vitreous silica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4164459A GB905657A (en) 1959-12-08 1959-12-08 Method of stressing the surface of a sample of vitreous silica

Publications (1)

Publication Number Publication Date
GB905657A true GB905657A (en) 1962-09-12

Family

ID=10420647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4164459A Expired GB905657A (en) 1959-12-08 1959-12-08 Method of stressing the surface of a sample of vitreous silica

Country Status (1)

Country Link
GB (1) GB905657A (en)

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