FR2172913A1 - Synthetic corundum - from melt containing asteriating cpds by pulling from melt having crystal-forming temp only in localised - Google Patents

Synthetic corundum - from melt containing asteriating cpds by pulling from melt having crystal-forming temp only in localised

Info

Publication number
FR2172913A1
FR2172913A1 FR7206602A FR7206602A FR2172913A1 FR 2172913 A1 FR2172913 A1 FR 2172913A1 FR 7206602 A FR7206602 A FR 7206602A FR 7206602 A FR7206602 A FR 7206602A FR 2172913 A1 FR2172913 A1 FR 2172913A1
Authority
FR
France
Prior art keywords
melt
crystal
asteriating
pulling
cpds
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.)
Granted
Application number
FR7206602A
Other languages
English (en)
French (fr)
Other versions
FR2172913B1 (fi
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Priority to FR7206602A priority Critical patent/FR2172913A1/fr
Publication of FR2172913A1 publication Critical patent/FR2172913A1/fr
Application granted granted Critical
Publication of FR2172913B1 publication Critical patent/FR2172913B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/20—Aluminium oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
FR7206602A 1972-02-25 1972-02-25 Synthetic corundum - from melt containing asteriating cpds by pulling from melt having crystal-forming temp only in localised Granted FR2172913A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7206602A FR2172913A1 (en) 1972-02-25 1972-02-25 Synthetic corundum - from melt containing asteriating cpds by pulling from melt having crystal-forming temp only in localised

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7206602A FR2172913A1 (en) 1972-02-25 1972-02-25 Synthetic corundum - from melt containing asteriating cpds by pulling from melt having crystal-forming temp only in localised

Publications (2)

Publication Number Publication Date
FR2172913A1 true FR2172913A1 (en) 1973-10-05
FR2172913B1 FR2172913B1 (fi) 1975-10-24

Family

ID=9094197

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7206602A Granted FR2172913A1 (en) 1972-02-25 1972-02-25 Synthetic corundum - from melt containing asteriating cpds by pulling from melt having crystal-forming temp only in localised

Country Status (1)

Country Link
FR (1) FR2172913A1 (fi)

Also Published As

Publication number Publication date
FR2172913B1 (fi) 1975-10-24

Similar Documents

Publication Publication Date Title
CA978139A (en) Cutting implements and the production thereof
CA953969A (en) Iridescent plastic article and method of production
IL35405A (en) 3-aryl-5-alkylthio-1,2,4-oxa-and thiadiazole derivatives,their production and their use as biocides and plant growth regulants
IL41536A0 (en) The production of hydrophilic polyurethane foams and their use as substrates for plants
IL40052A (en) Beta-haloethyl-methyl-silanes,their production and their use for the regulation of plant growth
CA949561A (en) N-benzyltriazoles, a process for their production and their use for the regulation of plant growth
IL39417A (en) 2-alkylthio-4,6-diamino-5-nitro-pyrimidine derivatives,their production and their use for the regulation of plant growth
CA1006396A (en) Process for the treatment of coconut and products resulting therefrom
FR2172913A1 (en) Synthetic corundum - from melt containing asteriating cpds by pulling from melt having crystal-forming temp only in localised
ZA7195B (en) Active substances that influence the growth of plants,their manufacture and use
ZA728987B (en) Controlling the growth of unwanted plants
IL39981A0 (en) 2-chloroethanephosphonic acid derivatives,their production and their use for regulating the growth of plants
IL37800A0 (en) Cis-zearalenone and cis-zearalenol,their production and their use for promoting the growth of animals
USD156163S (en) Design for a bracelet or similar article
USD155423S (en) Design for a plate or similar article
USD151535S (en) Design fob a necklace or similar article
USD156458S (en) Bracelet or similar article
USD153029S (en) Design fob a necklace ob similar abticle
IL35792A0 (en) N-benzyltriazoles,their production and their use for the regulation of plant growth
CA937494A (en) Process for the production and single crystal growth of multicomponent materials
AU472252B2 (en) Process altering the appearance of corundum crystals and crystals produced thereby
IL38302A (en) 8h-pyrazolo(5,1-a)isoindol-8-ones,their production and their use as plant growth modifiers
CA966039A (en) Process of growing diamond crystals
CA458171A (en) Curtain suspension, bracelet, necklace, girdle and the like articles
CA862699A (en) Vapor-liquid-solid crystal growth technique

Legal Events

Date Code Title Description
ST Notification of lapse