GB1289737A - - Google Patents

Info

Publication number
GB1289737A
GB1289737A GB1289737DA GB1289737A GB 1289737 A GB1289737 A GB 1289737A GB 1289737D A GB1289737D A GB 1289737DA GB 1289737 A GB1289737 A GB 1289737A
Authority
GB
United Kingdom
Prior art keywords
former
silicon dioxide
silica articles
silicon
heading
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
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 filed Critical
Publication of GB1289737A publication Critical patent/GB1289737A/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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/14—Other methods of shaping glass by gas- or vapour- phase reaction processes
    • C03B19/1453—Thermal after-treatment of the shaped article, e.g. dehydrating, consolidating, sintering
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/02—Pure silica glass, e.g. pure fused quartz
    • 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
    • C03C2203/00—Production processes
    • C03C2203/40—Gas-phase processes
    • C03C2203/42—Gas-phase processes using silicon halides as starting materials
    • 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
    • C03C2203/00—Production processes
    • C03C2203/50—After-treatment

Abstract

1289737 Fused silica articles TEXAS INSTRUMENTS Inc 22 Dec 1969 [26 Feb 1969] 62207/69 Heading C1M Substantially water-free vitreous silica articles are produced by depositing silicon dioxide on or in a former and the resultant deposit sintered in an atmosphere containing hydrogen, helium or a mixture thereof. Sintering is preferably under atmospheric pressure and between 1350‹ and 1600‹ C. The silicon dioxide layer may be deposited by vapour phase hydrolysis of a compound of silicon such as a halide, preferably SiCl 4 . The former is preferably of graphite and shaped with a hemispherical end to a cylindrical body to give a crucible shape. Specifications 1,272,143; 1,276,857 and co-pending Application 12175/70 are referred to.
GB1289737D 1969-02-26 1969-12-22 Expired GB1289737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80269069A 1969-02-26 1969-02-26

Publications (1)

Publication Number Publication Date
GB1289737A true GB1289737A (en) 1972-09-20

Family

ID=25184437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289737D Expired GB1289737A (en) 1969-02-26 1969-12-22

Country Status (5)

Country Link
JP (1) JPS5030652B1 (en)
DE (1) DE1965558A1 (en)
FR (1) FR2031019A5 (en)
GB (1) GB1289737A (en)
NL (1) NL6919572A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204850A (en) * 1977-08-26 1980-05-27 Corning Glass Works Carbon coating for a starting member used in producing optical waveguide
DE10302914B4 (en) * 2003-01-24 2005-12-29 Heraeus Quarzglas Gmbh & Co. Kg Process for the production of synthetic quartz glass
US8272234B2 (en) 2008-12-19 2012-09-25 Heraeus Shin-Etsu America, Inc. Silica crucible with pure and bubble free inner crucible layer and method of making the same
US9003832B2 (en) 2009-11-20 2015-04-14 Heraeus Shin-Etsu America, Inc. Method of making a silica crucible in a controlled atmosphere

Also Published As

Publication number Publication date
DE1965558A1 (en) 1970-09-10
FR2031019A5 (en) 1970-11-13
JPS5030652B1 (en) 1975-10-02
NL6919572A (en) 1970-08-28

Similar Documents

Publication Publication Date Title
GB1429730A (en) Method of producing glass by flame hydrolysis
IE780321L (en) Coating of supports with tin oxide.
ES8702315A1 (en) Process for the preparation of a powder based on indium formiate for producing a thin layer on a substrate, especially on glass.
GB1289736A (en)
GB1176393A (en) Production of Glass
EP0277811A3 (en) Optically transparent yttrium oxide
GB1289737A (en)
GB1520587A (en) Doped silica glass
GB1417043A (en) Transparent aluminium oxide articles
GB1406956A (en) Production of electrically directly heatable hollow bodies of semiconductor material
GB850803A (en) Improvements in or relating to the oxide coating of glass surfaces
GB1278802A (en) Apparatus for forming oxide articles
GB1421566A (en) Transparent fused silica articles
GB1340464A (en) Production of tubes of semiconductor material closed at one end
GB932142A (en) Method of increasing annealing point of high silica glass
CA2067145A1 (en) Process for forming crack-free pyrolytic boron nitride on a carbon structure and article
GB1373051A (en) Chromium oxide photomask material and the production thereof
DE2964245D1 (en) Polyurethanes prepared with tetrahydrofuran-alkylene oxide polymerizates having low oligomeric cyclic ether content, processes for preparing the same, and articles and fibers of the polyurethanes
GB1328298A (en) Production of a highly refractive oxide layer permeable to lihgt
GB1241104A (en) Method for surface nitriding boron filaments
GB1474974A (en) Di-electric glass
GB1212366A (en) Improvements in doping semi-conductor bodies
FR1194271A (en)
GB1245027A (en) Improvements in or relating to fused silica diffusion tubes for use in the manufacture of semi-conductors
GB1276855A (en) Improvements in or relating to fused silica crucibles

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees