DE69231902D1 - Verfahren zum züchten von kristallen - Google Patents

Verfahren zum züchten von kristallen

Info

Publication number
DE69231902D1
DE69231902D1 DE69231902T DE69231902T DE69231902D1 DE 69231902 D1 DE69231902 D1 DE 69231902D1 DE 69231902 T DE69231902 T DE 69231902T DE 69231902 T DE69231902 T DE 69231902T DE 69231902 D1 DE69231902 D1 DE 69231902D1
Authority
DE
Germany
Prior art keywords
growing crystals
crystals
growing
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 - Fee Related
Application number
DE69231902T
Other languages
English (en)
Other versions
DE69231902T2 (de
Inventor
A Barclay
J Lewis
Bernard Decker
R Carradine
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.)
Sasol North America Inc (ndgesd Staates Delaw
Original Assignee
CONDEA VISTA COMP AUSTIN
Condea Vista Co
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 CONDEA VISTA COMP AUSTIN, Condea Vista Co filed Critical CONDEA VISTA COMP AUSTIN
Application granted granted Critical
Publication of DE69231902D1 publication Critical patent/DE69231902D1/de
Publication of DE69231902T2 publication Critical patent/DE69231902T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • 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
    • 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
    • C30B7/00—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S117/00—Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor
    • Y10S117/912—Replenishing liquid precursor, other than a moving zone

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
DE69231902T 1991-04-22 1992-04-22 Verfahren zum züchten von kristallen Expired - Fee Related DE69231902T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/690,164 US5569325A (en) 1991-04-22 1991-04-22 Process for growing crystals
PCT/US1992/003258 WO1992018671A1 (en) 1991-04-22 1992-04-22 Process for growing crystals

Publications (2)

Publication Number Publication Date
DE69231902D1 true DE69231902D1 (de) 2001-08-02
DE69231902T2 DE69231902T2 (de) 2001-10-04

Family

ID=24771355

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69231902T Expired - Fee Related DE69231902T2 (de) 1991-04-22 1992-04-22 Verfahren zum züchten von kristallen

Country Status (6)

Country Link
US (1) US5569325A (de)
EP (1) EP0581875B1 (de)
JP (1) JP3257676B2 (de)
AU (1) AU1989692A (de)
DE (1) DE69231902T2 (de)
WO (1) WO1992018671A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19836821A1 (de) * 1998-08-14 2000-02-24 Rwe Dea Ag Böhmitische Tonerden und aus diesen erhältliche phasenreine, hochtemperaturstabile und hochporöse Aluminiumoxide
GB2360477A (en) * 2000-03-22 2001-09-26 Gea Sprio Gills Ltd Brazing aluminium components
US6765153B2 (en) * 2001-06-14 2004-07-20 David M. Goodson Method for making improved ceramic cement compositions containing a dispersed seeded phase and a method and apparatus for producing seed crystals
US20030101924A1 (en) * 2001-11-15 2003-06-05 Memc Electronic Materials, Inc. Intermittent feeding technique for increasing the melting rate of polycrystalline silicon
DE102006012268A1 (de) * 2006-03-15 2007-09-27 Nabaltec Ag Feinkristalliner Böhmit und Verfahren zu dessen Herstellung
US8226766B2 (en) 2010-12-22 2012-07-24 United States Gypsum Company Set accelerator for gypsum hydration

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB838575A (en) * 1957-06-14 1960-06-22 Western Electric Co Method of growing corundum crystals
GB963757A (en) * 1961-11-03 1964-07-15 Gen Electric Co Ltd Improvements in or relating to the manufacture of crystals of alkaline earth metal tungstates and molybdates
US4193768A (en) * 1975-07-28 1980-03-18 Showa Denko K. K. Method for preparing corundum particles
US4117105A (en) * 1977-03-21 1978-09-26 Pq Corporation Process for preparing dispersible boehmite alumina
US4994253A (en) * 1985-04-04 1991-02-19 Vereinigte Aluminium-Werke Ag Process for the production of large boehmite particles
US4797139A (en) * 1987-08-11 1989-01-10 Norton Company Boehmite produced by a seeded hydyothermal process and ceramic bodies produced therefrom

Also Published As

Publication number Publication date
EP0581875B1 (de) 2001-06-27
EP0581875A1 (de) 1994-02-09
DE69231902T2 (de) 2001-10-04
JP3257676B2 (ja) 2002-02-18
AU1989692A (en) 1992-11-17
JPH07500558A (ja) 1995-01-19
WO1992018671A1 (en) 1992-10-29
US5569325A (en) 1996-10-29
EP0581875A4 (en) 1995-11-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SASOL NORTH AMERICA INC. (N.D.GES.D. STAATES DELAW

8339 Ceased/non-payment of the annual fee