FR2294747A1 - Procede de preparation d'alumine alpha monocristalline massive - Google Patents

Procede de preparation d'alumine alpha monocristalline massive

Info

Publication number
FR2294747A1
FR2294747A1 FR7539164A FR7539164A FR2294747A1 FR 2294747 A1 FR2294747 A1 FR 2294747A1 FR 7539164 A FR7539164 A FR 7539164A FR 7539164 A FR7539164 A FR 7539164A FR 2294747 A1 FR2294747 A1 FR 2294747A1
Authority
FR
France
Prior art keywords
monocristalline
alpha alumina
massive
preparing
preparing massive
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
FR7539164A
Other languages
English (en)
French (fr)
Other versions
FR2294747B1 (OSRAM
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
Publication of FR2294747A1 publication Critical patent/FR2294747A1/fr
Application granted granted Critical
Publication of FR2294747B1 publication Critical patent/FR2294747B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C30B15/36—Single-crystal growth by pulling from a melt, e.g. Czochralski method characterised by the seed, e.g. its crystallographic orientation
    • 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)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
FR7539164A 1974-12-20 1975-12-19 Procede de preparation d'alumine alpha monocristalline massive Granted FR2294747A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53509374A 1974-12-20 1974-12-20

Publications (2)

Publication Number Publication Date
FR2294747A1 true FR2294747A1 (fr) 1976-07-16
FR2294747B1 FR2294747B1 (OSRAM) 1982-03-19

Family

ID=24132809

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7539164A Granted FR2294747A1 (fr) 1974-12-20 1975-12-19 Procede de preparation d'alumine alpha monocristalline massive

Country Status (4)

Country Link
JP (1) JPS5612280B2 (OSRAM)
DE (1) DE2555610C3 (OSRAM)
FR (1) FR2294747A1 (OSRAM)
GB (1) GB1530608A (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7067007B2 (en) * 2002-08-24 2006-06-27 Schott Glas Process and device for growing single crystals
JP5888198B2 (ja) * 2012-09-26 2016-03-16 住友金属鉱山株式会社 サファイア単結晶の製造装置
EP4174221A1 (fr) * 2021-11-02 2023-05-03 Comadur S.A. Procédé de fabrication d'un germe de saphir monocristallin ainsi que d'un monocristal de saphir à orientation cristallographique préférentielle et composants d habillage et fonctionnels pour l horlogerie et la bijouterie

Also Published As

Publication number Publication date
DE2555610A1 (de) 1976-07-01
JPS5612280B2 (OSRAM) 1981-03-19
GB1530608A (en) 1978-11-01
DE2555610B2 (de) 1979-04-05
JPS5187197A (OSRAM) 1976-07-30
FR2294747B1 (OSRAM) 1982-03-19
DE2555610C3 (de) 1979-11-22

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