FR2099638A1 - Rod-shaped crystals prodn - eg of zinc tungstate suppressing thermal variations with protective plate - Google Patents

Rod-shaped crystals prodn - eg of zinc tungstate suppressing thermal variations with protective plate

Info

Publication number
FR2099638A1
FR2099638A1 FR7127659A FR7127659A FR2099638A1 FR 2099638 A1 FR2099638 A1 FR 2099638A1 FR 7127659 A FR7127659 A FR 7127659A FR 7127659 A FR7127659 A FR 7127659A FR 2099638 A1 FR2099638 A1 FR 2099638A1
Authority
FR
France
Prior art keywords
rod
prodn
shaped crystals
protective plate
thermal variations
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
FR7127659A
Other languages
English (en)
Other versions
FR2099638B1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2099638A1 publication Critical patent/FR2099638A1/fr
Application granted granted Critical
Publication of FR2099638B1 publication Critical patent/FR2099638B1/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
    • C30B15/14—Heating of the melt or the crystallised materials
    • 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
    • C30B29/22—Complex oxides
    • C30B29/30—Niobates; Vanadates; Tantalates

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)
FR7127659A 1970-07-28 1971-07-28 Rod-shaped crystals prodn - eg of zinc tungstate suppressing thermal variations with protective plate Granted FR2099638A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3654670 1970-07-28
GB3698670 1970-07-30

Publications (2)

Publication Number Publication Date
FR2099638A1 true FR2099638A1 (en) 1972-03-17
FR2099638B1 FR2099638B1 (fr) 1973-06-29

Family

ID=26263152

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7127659A Granted FR2099638A1 (en) 1970-07-28 1971-07-28 Rod-shaped crystals prodn - eg of zinc tungstate suppressing thermal variations with protective plate

Country Status (4)

Country Link
DE (1) DE2137088A1 (fr)
FR (1) FR2099638A1 (fr)
IT (1) IT939745B (fr)
NL (1) NL7110300A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124938A2 (fr) * 1983-05-06 1984-11-14 Philips Patentverwaltung GmbH Creuset froid pour la fusion de composés minéraux non-métalliques
EP0173764A1 (fr) * 1984-08-31 1986-03-12 Gakei Electric Works Co., Ltd. Procédé et dispositif pour la fabrication des monocristaux

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528454A1 (fr) * 1982-06-11 1983-12-16 Criceram Creuset modifie pour la methode de cristallisation par goutte pendante

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124938A2 (fr) * 1983-05-06 1984-11-14 Philips Patentverwaltung GmbH Creuset froid pour la fusion de composés minéraux non-métalliques
EP0124938A3 (en) * 1983-05-06 1985-11-27 Philips Patentverwaltung Gmbh Cold crucible for the melting of non metallic inorganic compounds
EP0173764A1 (fr) * 1984-08-31 1986-03-12 Gakei Electric Works Co., Ltd. Procédé et dispositif pour la fabrication des monocristaux

Also Published As

Publication number Publication date
FR2099638B1 (fr) 1973-06-29
IT939745B (it) 1973-02-10
DE2137088A1 (de) 1972-02-10
NL7110300A (fr) 1972-02-01

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Legal Events

Date Code Title Description
ST Notification of lapse