GB1276855A - Improvements in or relating to fused silica crucibles - Google Patents

Improvements in or relating to fused silica crucibles

Info

Publication number
GB1276855A
GB1276855A GB2985169A GB2985169A GB1276855A GB 1276855 A GB1276855 A GB 1276855A GB 2985169 A GB2985169 A GB 2985169A GB 2985169 A GB2985169 A GB 2985169A GB 1276855 A GB1276855 A GB 1276855A
Authority
GB
United Kingdom
Prior art keywords
crucible
fused silica
range
mandrel
silicon
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
GB2985169A
Inventor
Michael Andrew Carrell
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB1276855A publication Critical patent/GB1276855A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Silicon Compounds (AREA)

Abstract

1276855 Fused silica TEXAS INSTRUMENTS Inc 12 June 1969 [10 July 1968] 29851/69 Heading C1M A fused silica crucible, suitable for pulling monocrystalline silicon from a pure silicon melt, is made by supporting on a mandrel a crucible form produced by vapour phase flame hydrolysis of silicon tetrachloride, heating to a presintering temperature in the range 1000‹ to 1300‹ C. in vacuum to substantially free the silica of water and then heating at a sintering temperature in the range 1300‹ to 1500‹ C. and cooled in a helium atmosphere to form a transparent fused silica crucible. Preferably the mandrel is of graphite and has a generally cylindrical portion and a symmetrically curved closed end portion. The crucible form may consist of silicon dioxide particles of diameter in the range 0À01 to 0À1 micron. The presintering may be carried out at a pressure of 0À01 to 10 millimetres of mercury for such a time that the final crucible has an infra-red transmittance of substantially 63% at 2À73 microns.
GB2985169A 1968-07-10 1969-06-12 Improvements in or relating to fused silica crucibles Expired GB1276855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74387968A 1968-07-10 1968-07-10

Publications (1)

Publication Number Publication Date
GB1276855A true GB1276855A (en) 1972-06-07

Family

ID=24990565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2985169A Expired GB1276855A (en) 1968-07-10 1969-06-12 Improvements in or relating to fused silica crucibles

Country Status (4)

Country Link
DE (1) DE1932626A1 (en)
FR (1) FR2017946A1 (en)
GB (1) GB1276855A (en)
NL (1) NL6909577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011147906A1 (en) * 2010-05-27 2011-12-01 Heraeus Quarzglas Gmbh & Co. Kg Method for producing a quartz glass crucible having a transparent inner layer made of synthetically produced quartz glass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011147906A1 (en) * 2010-05-27 2011-12-01 Heraeus Quarzglas Gmbh & Co. Kg Method for producing a quartz glass crucible having a transparent inner layer made of synthetically produced quartz glass

Also Published As

Publication number Publication date
DE1932626A1 (en) 1970-06-18
FR2017946A1 (en) 1970-05-29
NL6909577A (en) 1970-01-13

Similar Documents

Publication Publication Date Title
GB1289736A (en)
GB1430681A (en) Method for producing high quality fuese silica
GB1429730A (en) Method of producing glass by flame hydrolysis
GB908951A (en) Production of semiconductors and the like
GB1460829A (en) Vacuum drying process for making high-density silica glass articles mixing apparatus
GB1176393A (en) Production of Glass
GB1243930A (en) Improvements in or relating to the production of monocrystals
JPS5688836A (en) Preparation of glass stock for optical fiber
GB1254492A (en) Method of reducing air lines and water content in the manufacture of silica glass
GB1276855A (en) Improvements in or relating to fused silica crucibles
GB1421566A (en) Transparent fused silica articles
US3447952A (en) Manufacture of silicon carbide fibers
GB939102A (en) Improvements in and relating to the production of crystals, and apparatus for use therein
GB1029804A (en) A process for producing a substantially monocrystalline rod of semiconductor material
FR2133840A1 (en) Thin quartz glass beakers - consisting of fused slip cast powder
GB816334A (en) Improvements in or relating to crucibles
GB1411680A (en) Crucible made of fused silica and a method for the manufacture thereof
GB1059960A (en) The production of semi-conductor rods
GB823496A (en) Improvements in method of preparing high purity silicon
GB1289737A (en)
GB1408215A (en) Production of monocrystalline gallium arsenide rods
JPS5510412A (en) Production of anhydrous glass base material for optical fiber
GB1267459A (en) Manufacture of striation-free quartz glass articles
KR890005825A (en) Dendrite Web Silicon Crystal Growth Method
GB1276856A (en) Manufacture of open-mouthed articles from heat shrinkable material

Legal Events

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