AT330722B - Verfahren zur veranderung des aussehens von korundkristallen - Google Patents

Verfahren zur veranderung des aussehens von korundkristallen

Info

Publication number
AT330722B
AT330722B AT1084872A AT1084872A AT330722B AT 330722 B AT330722 B AT 330722B AT 1084872 A AT1084872 A AT 1084872A AT 1084872 A AT1084872 A AT 1084872A AT 330722 B AT330722 B AT 330722B
Authority
AT
Austria
Prior art keywords
appearance
changing
corundum crystals
corundum
crystals
Prior art date
Application number
AT1084872A
Other languages
English (en)
Other versions
ATA1084872A (de
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 ATA1084872A publication Critical patent/ATA1084872A/de
Application granted granted Critical
Publication of AT330722B publication Critical patent/AT330722B/de

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
    • 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
    • C30B29/26—Complex oxides with formula BMe2O4, wherein B is Mg, Ni, Co, Al, Zn, or Cd and Me is Fe, Ga, Sc, Cr, Co, or Al
    • 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
    • C30B31/00—Diffusion or doping processes for single crystals or homogeneous polycrystalline material with defined structure; Apparatus therefor
    • C30B31/02—Diffusion or doping processes for single crystals or homogeneous polycrystalline material with defined structure; Apparatus therefor by contacting with diffusion materials in the solid state

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)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
AT1084872A 1971-12-20 1972-12-19 Verfahren zur veranderung des aussehens von korundkristallen AT330722B (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21014071A 1971-12-20 1971-12-20
US312132A US3897529A (en) 1971-12-20 1972-12-04 Altering the appearance of corundum crystals

Publications (2)

Publication Number Publication Date
ATA1084872A ATA1084872A (de) 1975-10-15
AT330722B true AT330722B (de) 1976-07-12

Family

ID=26904856

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1084872A AT330722B (de) 1971-12-20 1972-12-19 Verfahren zur veranderung des aussehens von korundkristallen

Country Status (9)

Country Link
US (1) US3897529A (de)
AT (1) AT330722B (de)
BE (1) BE793007A (de)
CA (1) CA978836A (de)
CH (1) CH554811A (de)
DE (1) DE2262104A1 (de)
FR (1) FR2164690B1 (de)
GB (1) GB1408648A (de)
IL (1) IL41125A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1168707B (it) * 1983-08-03 1987-05-20 Giovanni Colliva Apparecchiature per il taglio di gemme a faccette sferiche e gemme cosi' ottenute
IL69576A (en) * 1982-09-16 1986-08-31 Colliva Giovanni Apparatus for the cutting of spherical-faceted gems and gems thus obtained
US5126094A (en) * 1989-03-02 1992-06-30 Farzin Nia Farrokh Heat treatment of an orthodontic bracket
DE4201490A1 (de) * 1992-01-21 1993-07-22 Otto Feuerfest Gmbh Feuerfestes material fuer elektrolyseoefen, verfahren zur herstellung und verwendung des feuerfesten materials
US5762896A (en) * 1995-08-31 1998-06-09 C3, Inc. Silicon carbide gemstones
US5664440A (en) * 1996-06-05 1997-09-09 Roemer; Thomas Bruce Enhanced diamond ring
US6635309B2 (en) * 2001-03-12 2003-10-21 Richard D. Pollak Process for the color enhancement of gemstones
US6872422B2 (en) 2001-07-09 2005-03-29 Samir Gupta Process for imparting and enhancement of colours in gemstone minerals and gemstone minerals obtained thereby
US7526928B1 (en) 2002-11-04 2009-05-05 Azotic Coating Technology, Inc. Multi-color gemstones and gemstone coating deposition technology
US6997014B2 (en) * 2002-11-04 2006-02-14 Azotic Coating Technology, Inc. Coatings for gemstones and other decorative objects
RU2253706C2 (ru) * 2003-02-13 2005-06-10 Жалнин Виктор Васильевич Ювелирный материал - синтетический поликристаллический корунд "мариит" и способ получения изделий из ювелирного материала - синтетического поликристаллического корунда
CN110241458A (zh) * 2019-05-24 2019-09-17 淅川正弘单晶刚玉厂 灰白色单晶刚玉的生产方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US988230A (en) * 1910-05-10 1911-03-28 Heller & Son L Process of producing synthetic sapphires.
US1814219A (en) * 1926-05-17 1931-07-14 Ig Farbenindustrie Ag Process of improving certain physical properties of synthetic precious stones
US1775867A (en) * 1928-01-19 1930-09-16 Swiss Jewel Co S A Synthetic oriental emerald or emerald-green sapphire
US2448511A (en) * 1943-10-01 1948-09-07 Linde Air Prod Co Glossing corundum and spinel
US2488507A (en) * 1947-08-27 1949-11-15 Linde Air Prod Co Synthetic star rubies and star sapphires, and process for producing same
US2690062A (en) * 1949-12-21 1954-09-28 Union Carbide & Carbon Corp Synthetic corundum crystals and process for making same
US2690630A (en) * 1951-12-28 1954-10-05 Union Carbide & Carbon Corp Producing asteriated corundum crystals
FR1067037A (fr) * 1951-12-28 1954-06-11 Union Carbide & Carbon Corp Procédé de fabrication de cristaux de corindon à structure en étoile
FR1119461A (fr) * 1954-02-19 1956-06-20 Degussa Bijoux synthétiques et leurs procédés de fabrication
BE635034A (de) * 1962-08-10
US3539379A (en) * 1968-05-02 1970-11-10 Liner Technology Inc Process for coating gem stones
US3713877A (en) * 1969-02-10 1973-01-30 H Kirchner Method of strengthening ceramic bodies and strengthened ceramic bodies produced thereby

Also Published As

Publication number Publication date
US3897529A (en) 1975-07-29
CH554811A (fr) 1974-10-15
BE793007A (fr) 1973-06-19
CA978836A (en) 1975-12-02
IL41125A (en) 1976-02-29
GB1408648A (en) 1975-10-01
FR2164690A1 (de) 1973-08-03
DE2262104A1 (de) 1973-07-19
FR2164690B1 (de) 1976-10-29
ATA1084872A (de) 1975-10-15

Similar Documents

Publication Publication Date Title
AT320409B (de) Verfahren zur Herstellung von Würzmitteln
AT330722B (de) Verfahren zur veranderung des aussehens von korundkristallen
CH539605A (de) Verfahren zur Reinigung von rohem p-Aminophenol
CH509823A (de) Verfahren zur Herstellung von Einkristallen
CH530671A (de) Verfahren zur Ermittlung des Ganges von Uhren
AT315829B (de) Verfahren zur Herstellung von 4-Halogenmethylcumarinen
AT309679B (de) Verfahren zur Herstellung von 6-Desoxytetracyclinen
DD101403A5 (de) Verfahren zur herstellung von phenylimidazolidinonen
AT324553B (de) Verfahren zur herstellung von 3-alkylthiomethylcephalosporinen
AT327377B (de) Verfahren zur herstellung von aminopenicillinen
AT317243B (de) Verfahren zur Herstellung von Cyanacetylcarbamaten
AT318823B (de) Verfahren zur Herstellung von 16-Carboxy-17-methoxy-eburnan
CH494210A (de) Verfahren zur Herstellung von Nitrilen
CH512425A (de) Verfahren zur Herstellung von Mesidin
ATA472773A (de) Verfahren zur dimethylierung von kephalin- und serinkephalin
CH528533A (de) Verfahren zur Herstellung von Thiazylharnstoffen
AT328092B (de) Verfahren zur gewinnung von reinem hellebrin
AT324548B (de) Verfahren zur herstellung von cephalexin
CH516501A (de) Verfahren zur Herstellung von Monochloracetylchlorid
CH533066A (de) Verfahren zur Konservierung von Sandstein
AT315191B (de) Verfahren zur Herstellung von Arylsulfonylharnstoffen
AT333717B (de) Verfahren zur herstellung von neuem 3-fluor-d-alanin oder deutero-analogen desselben
AT322736B (de) Verfahren zur herstellung von 3-carbomoyloxymethyl-cephalosporinen
AT329517B (de) Verfahren zur herstellung von chlorcyan
AT314529B (de) Verfahren zur Herstellung von 1-Alkenyl-2-aminomethyl-pyrrolidinen

Legal Events

Date Code Title Description
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee