IL59047A - Method of reducing the colour of diamond of type 1b - Google Patents

Method of reducing the colour of diamond of type 1b

Info

Publication number
IL59047A
IL59047A IL59047A IL5904779A IL59047A IL 59047 A IL59047 A IL 59047A IL 59047 A IL59047 A IL 59047A IL 5904779 A IL5904779 A IL 5904779A IL 59047 A IL59047 A IL 59047A
Authority
IL
Israel
Prior art keywords
colour
diamond
reducing
type
Prior art date
Application number
IL59047A
Other languages
English (en)
Other versions
IL59047A0 (en
Original Assignee
De Beers Ind Diamond
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 De Beers Ind Diamond filed Critical De Beers Ind Diamond
Publication of IL59047A0 publication Critical patent/IL59047A0/xx
Publication of IL59047A publication Critical patent/IL59047A/xx

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21H—OBTAINING ENERGY FROM RADIOACTIVE SOURCES; APPLICATIONS OF RADIATION FROM RADIOACTIVE SOURCES, NOT OTHERWISE PROVIDED FOR; UTILISING COSMIC RADIATION
    • G21H5/00—Applications of radiation from radioactive sources or arrangements therefor, not otherwise provided for 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B01J3/062—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies characterised by the composition of the materials to be processed
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/25—Diamond
    • C01B32/28—After-treatment, e.g. purification, irradiation, separation or recovery
    • 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
    • C30B29/02—Elements
    • C30B29/04—Diamond
    • 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
    • C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0605—Composition of the material to be processed
    • B01J2203/062—Diamond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/065—Composition of the material produced
    • B01J2203/0655—Diamond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0675—Structural or physico-chemical features of the materials processed
    • B01J2203/0695—Colour change

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Carbon And Carbon Compounds (AREA)
IL59047A 1979-01-17 1979-12-27 Method of reducing the colour of diamond of type 1b IL59047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7901728 1979-01-17

Publications (2)

Publication Number Publication Date
IL59047A0 IL59047A0 (en) 1980-03-31
IL59047A true IL59047A (en) 1983-02-23

Family

ID=10502575

Family Applications (1)

Application Number Title Priority Date Filing Date
IL59047A IL59047A (en) 1979-01-17 1979-12-27 Method of reducing the colour of diamond of type 1b

Country Status (6)

Country Link
US (1) US4399364A (2)
EP (1) EP0014528B1 (2)
JP (1) JPS55126521A (2)
DE (1) DE3062484D1 (2)
IL (1) IL59047A (2)
ZA (1) ZA797004B (2)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4741529A (en) * 1985-01-25 1988-05-03 Bio-Dynamic Innovations, Inc. Exercise apparatus
IL81537A (en) * 1986-02-24 1991-05-12 De Beers Ind Diamond Method and synthetic diamond detector for detection of nuclear radiation
US4749869A (en) * 1986-05-14 1988-06-07 Anil Dholakia Process for irradiating topaz and the product resulting therefrom
EP0275063A3 (en) * 1987-01-12 1992-05-27 Sumitomo Electric Industries Limited Light emitting element comprising diamond and method for producing the same
JP2571795B2 (ja) * 1987-11-17 1997-01-16 住友電気工業株式会社 紫色ダイヤモンドおよびその製造方法
JP2571808B2 (ja) * 1988-01-13 1997-01-16 住友電気工業株式会社 緑色ダイヤモンド及びその製造方法
JPH0288498A (ja) * 1988-06-13 1990-03-28 Sumitomo Electric Ind Ltd ダイヤモンドレーザ結晶およびその作製方法
US4985226A (en) * 1988-06-20 1991-01-15 Sumitomo Electric Industries, Ltd. Hole-burning material and production thereof
US5328855A (en) * 1991-07-25 1994-07-12 Matsushita Electric Industrial Co., Ltd. Formation of semiconductor diamond
US5888918A (en) * 1997-04-25 1999-03-30 Pollak; Richard Method for enhancing the color of minerals useful as gemstones
US6692714B2 (en) 1997-10-17 2004-02-17 Suresh Shankarappa Vagarali High pressure/high temperature production of colorless and fancy-colored diamonds
WO1999067171A1 (en) * 1998-06-24 1999-12-29 Sellschop Jacques Pierre Fried A method of altering the colour of a material
JP4294140B2 (ja) 1999-01-27 2009-07-08 有限会社アプライドダイヤモンド ダイヤモンド薄膜の改質方法及びダイヤモンド薄膜の改質及び薄膜形成方法並びにダイヤモンド薄膜の加工方法
DE19915896C2 (de) * 1999-04-08 2003-03-06 Herman A C Dierckx Verfahren zum Entfärben von Diamanten
IL148287A (en) 1999-08-25 2007-05-15 Bellataire Internat Llc Method for improving the color of discolored diamonds
KR100812112B1 (ko) 2000-08-11 2008-03-12 벨라타이레 인터내셔날 엘엘씨. 다이아몬드의 고압 및 고온 제조방법
RU2328563C2 (ru) * 2002-09-06 2008-07-10 Элемент Сикс Лимитед Цветные алмазы
US20050249655A1 (en) * 2003-01-08 2005-11-10 Vagarali Suresh S High pressure/high temperature production of colorless and fancy-colored diamonds
US8110171B1 (en) * 2005-11-17 2012-02-07 Rajneesh Bhandari Method for decolorizing diamonds
CN101254917B (zh) * 2007-12-14 2010-06-09 武汉理工大学 提高金刚石微粉品质的激光加工方法
US8884251B2 (en) * 2010-06-03 2014-11-11 Element Six Limited Diamond tools
US8961920B1 (en) 2011-04-26 2015-02-24 Us Synthetic Corporation Methods of altering the color of a diamond by irradiation and high-pressure/high-temperature processing
GB2492822A (en) * 2011-07-14 2013-01-16 Element Six Ltd Modifying diamond components by irradiation
US11988619B2 (en) 2019-07-25 2024-05-21 Quantum Technologies Gmbh NV-center-based microwave-free quantum sensor and uses and characteristics thereof
DE102024120092A1 (de) 2024-07-15 2026-01-15 Leibniz-Institut für Oberflächenmodifizierung e.V. Verfahren zur Erzeugung von Defekten in Diamanten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL81096C (2) * 1948-05-31
US2945793A (en) * 1952-09-22 1960-07-19 Dugdale Ronald Arthur Process for coloring diamonds
BE537440A (2) * 1954-04-19
US4124690A (en) * 1976-07-21 1978-11-07 General Electric Company Annealing type Ib or mixed type Ib-Ia natural diamond crystal
GB1588445A (en) * 1977-05-26 1981-04-23 Nat Res Dev Toughening diamond

Also Published As

Publication number Publication date
EP0014528B1 (en) 1983-03-30
JPS6243960B2 (2) 1987-09-17
JPS55126521A (en) 1980-09-30
EP0014528A1 (en) 1980-08-20
US4399364A (en) 1983-08-16
DE3062484D1 (en) 1983-05-05
ZA797004B (en) 1980-11-26
IL59047A0 (en) 1980-03-31

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