FR2164690B1 - - Google Patents

Info

Publication number
FR2164690B1
FR2164690B1 FR7245257A FR7245257A FR2164690B1 FR 2164690 B1 FR2164690 B1 FR 2164690B1 FR 7245257 A FR7245257 A FR 7245257A FR 7245257 A FR7245257 A FR 7245257A FR 2164690 B1 FR2164690 B1 FR 2164690B1
Authority
FR
France
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
FR7245257A
Other versions
FR2164690A1 (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.)
Astrid Corp Ltd
Original Assignee
Astrid Corp Ltd
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 Astrid Corp Ltd filed Critical Astrid Corp Ltd
Publication of FR2164690A1 publication Critical patent/FR2164690A1/fr
Application granted granted Critical
Publication of FR2164690B1 publication Critical patent/FR2164690B1/fr
Expired 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
    • 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)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
FR7245257A 1971-12-20 1972-12-19 Expired FR2164690B1 (fr)

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
FR2164690A1 FR2164690A1 (fr) 1973-08-03
FR2164690B1 true FR2164690B1 (fr) 1976-10-29

Family

ID=26904856

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7245257A Expired FR2164690B1 (fr) 1971-12-20 1972-12-19

Country Status (9)

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

Families Citing this family (11)

* 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
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
FR1067037A (fr) * 1951-12-28 1954-06-11 Union Carbide & Carbon Corp Procédé de fabrication de cristaux de corindon à structure en étoile
US2690630A (en) * 1951-12-28 1954-10-05 Union Carbide & Carbon Corp Producing asteriated corundum crystals
FR1119461A (fr) * 1954-02-19 1956-06-20 Degussa Bijoux synthétiques et leurs procédés de fabrication
BE635034A (fr) * 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
ATA1084872A (de) 1975-10-15
BE793007A (fr) 1973-06-19
DE2262104A1 (de) 1973-07-19
GB1408648A (en) 1975-10-01
AT330722B (de) 1976-07-12
IL41125A (en) 1976-02-29
CH554811A (fr) 1974-10-15
FR2164690A1 (fr) 1973-08-03
CA978836A (en) 1975-12-02
US3897529A (en) 1975-07-29

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Legal Events

Date Code Title Description
ST Notification of lapse