GB1540886A - Crucibles - Google Patents

Crucibles

Info

Publication number
GB1540886A
GB1540886A GB881776A GB881776A GB1540886A GB 1540886 A GB1540886 A GB 1540886A GB 881776 A GB881776 A GB 881776A GB 881776 A GB881776 A GB 881776A GB 1540886 A GB1540886 A GB 1540886A
Authority
GB
United Kingdom
Prior art keywords
crucible
wall
sheath
core
reduction
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
GB881776A
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.)
Prolizenz AG
Original Assignee
Prolizenz AG
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 Prolizenz AG filed Critical Prolizenz AG
Publication of GB1540886A publication Critical patent/GB1540886A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • F27B14/061—Induction furnaces
    • 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
    • C30B15/10—Crucibles or containers for supporting the melt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/10—Crucibles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/10—Crucibles
    • F27B2014/104—Crucible linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0085—Movement of the container or support of the charge in the furnace or in the charging facilities
    • F27D2003/0086—Up or down

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Laminated Bodies (AREA)

Abstract

In the case of a crucible for holding the melt for pulling crystals from a high-melting metal which is comparatively resistant to oxygen or oxidants, the wall or the wall and the bottom of the crucible are of a multilayer design, a core of a high-melting metal being surrounded by a sheath which is made of a platinum metal and which is coated with an oxide layer on at least one of its outer faces. Said oxide skin is also designed as a separating layer between the core and the sheath. The wall, the bottom and the protective skin on the inside of the crucible may be detachable with respect to one another. The invention permits a reduction of the manufacturing costs for crucibles of this type as well as a reduction of corrosion and thus an increase in the service life.
GB881776A 1975-03-12 1976-03-05 Crucibles Expired GB1540886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752510684 DE2510684C3 (en) 1975-03-12 1975-03-12 Multi-layer metal crucible for pulling crystals

Publications (1)

Publication Number Publication Date
GB1540886A true GB1540886A (en) 1979-02-21

Family

ID=5941101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB881776A Expired GB1540886A (en) 1975-03-12 1976-03-05 Crucibles

Country Status (6)

Country Link
JP (1) JPS51114385A (en)
CH (1) CH612098A5 (en)
DE (1) DE2510684C3 (en)
FR (1) FR2303599A1 (en)
GB (1) GB1540886A (en)
NL (1) NL7602345A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2661368C1 (en) * 2017-09-01 2018-07-16 Владимир Александрович Трусов Induction crucible furnace
CN112225570A (en) * 2019-07-14 2021-01-15 江苏摩铸特种陶瓷有限公司 Three-layer silicon carbide graphite crucible and preparation method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906815A1 (en) * 1979-02-22 1980-09-04 Doerentruper Sand & Thonwerk INDUCTION POT OVEN AND METHOD FOR THE PRODUCTION THEREOF
FR2484284A1 (en) * 1980-06-12 1981-12-18 Siderurgie Fse Inst Rech COMPOSITE CREUSET FOR MELTING INDUCTIVE ANALYSIS SAMPLES
EP0344813B1 (en) * 1988-06-02 1994-03-09 Sumitomo Electric Industries, Ltd. Method of melting ceramic superconductive material
US5260538A (en) * 1992-04-09 1993-11-09 Ethyl Corporation Device for the magnetic inductive heating of vessels
JP4957672B2 (en) * 2008-07-11 2012-06-20 株式会社デンソー Manufacturing method of silicon carbide single crystal manufacturing apparatus and silicon carbide single crystal manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2661368C1 (en) * 2017-09-01 2018-07-16 Владимир Александрович Трусов Induction crucible furnace
CN112225570A (en) * 2019-07-14 2021-01-15 江苏摩铸特种陶瓷有限公司 Three-layer silicon carbide graphite crucible and preparation method thereof

Also Published As

Publication number Publication date
DE2510684C3 (en) 1979-11-08
FR2303599A1 (en) 1976-10-08
JPS51114385A (en) 1976-10-08
CH612098A5 (en) 1979-07-13
FR2303599B1 (en) 1981-10-09
DE2510684B2 (en) 1979-03-15
DE2510684A1 (en) 1976-09-23
NL7602345A (en) 1976-09-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee