GB201306992D0 - Synthetic diamond crystals - Google Patents

Synthetic diamond crystals

Info

Publication number
GB201306992D0
GB201306992D0 GB201306992A GB201306992A GB201306992D0 GB 201306992 D0 GB201306992 D0 GB 201306992D0 GB 201306992 A GB201306992 A GB 201306992A GB 201306992 A GB201306992 A GB 201306992A GB 201306992 D0 GB201306992 D0 GB 201306992D0
Authority
GB
United Kingdom
Prior art keywords
diamond
diamond crystals
carbon source
seed particles
reaction compact
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.)
Withdrawn
Application number
GB201306992A
Other versions
GB2502434A (en
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.)
Element Six Ltd
Element Six Abrasives SA
Original Assignee
Element Six Ltd
Element Six Abrasives SA
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 Element Six Ltd, Element Six Abrasives SA filed Critical Element Six Ltd
Publication of GB201306992D0 publication Critical patent/GB201306992D0/en
Publication of GB2502434A publication Critical patent/GB2502434A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • B01J2203/061—Graphite
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Catalysts (AREA)

Abstract

A method of manufacturing a plurality of synthetic diamond crystals, the method including providing a reaction compact comprising a plurality of diamond seed particles dispersed within a matrix comprising a carbon source and catalyst material; in which the combined surface area of the diamond seed particles is at least 0.01 square cm per cubic cm of the reaction compact volume; the method further including subjecting the reaction compact to an ultra-high pressure and high temperature at which the catalyst material is molten and diamond is more thermodynamically stable than the carbon source, for a sufficient period of time to grow the diamond crystals on the diamond seed particles; and treating the reaction compact to recover the diamond crystals. The carbon source may be graphite powder. The catalyst may comprise iron, nickel, cobalt, or manganese, or mixtures thereof. Also claimed is a plurality of diamond crystals made by the process as defined above.
GB1306992.7A 2012-04-19 2013-04-17 Synthetic diamond crystals and a method of synthesis Withdrawn GB2502434A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261635611P 2012-04-19 2012-04-19
GB201206883A GB201206883D0 (en) 2012-04-19 2012-04-19 Synthetic diamond crystals and method for making same

Publications (2)

Publication Number Publication Date
GB201306992D0 true GB201306992D0 (en) 2013-05-29
GB2502434A GB2502434A (en) 2013-11-27

Family

ID=46261562

Family Applications (2)

Application Number Title Priority Date Filing Date
GB201206883A Ceased GB201206883D0 (en) 2012-04-19 2012-04-19 Synthetic diamond crystals and method for making same
GB1306992.7A Withdrawn GB2502434A (en) 2012-04-19 2013-04-17 Synthetic diamond crystals and a method of synthesis

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB201206883A Ceased GB201206883D0 (en) 2012-04-19 2012-04-19 Synthetic diamond crystals and method for making same

Country Status (2)

Country Link
GB (2) GB201206883D0 (en)
WO (1) WO2013156537A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114471364A (en) * 2022-02-23 2022-05-13 内蒙古唐合科技有限公司 Seed crystal growth-free IIa type diamond large single crystal synthesis block and preparation method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201222383D0 (en) * 2012-12-12 2013-01-23 Element Six Abrasives Sa Diamond grains, method for making same and mixture comprising same
GB201404633D0 (en) * 2014-03-14 2014-04-30 Element Six Abrasives Sa Diamond grains, tools comprising same and methods of using same
CN107188166B (en) * 2017-06-26 2019-12-24 鄂信钻石新材料股份有限公司 Pyramid-shaped artificial diamond and preparation method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2546558B2 (en) * 1991-07-22 1996-10-23 住友電気工業株式会社 Diamond abrasive grain synthesis method
JPH08337498A (en) * 1995-04-13 1996-12-24 Sumitomo Electric Ind Ltd Diamond granule, granule for diamond synthesis, compact and their production
US7404857B2 (en) * 1997-04-04 2008-07-29 Chien-Min Sung Superabrasive particle synthesis with controlled placement of crystalline seeds
US7368013B2 (en) * 1997-04-04 2008-05-06 Chien-Min Sung Superabrasive particle synthesis with controlled placement of crystalline seeds
DE60127853T2 (en) * 2000-11-09 2008-01-17 Element Six (Pty) Ltd. PROCESS FOR PRODUCING ULTRA-HARD GRINDING PARTICLES
ZA200710052B (en) * 2005-05-31 2009-03-25 Element Six Production Pty Ltd Method of cladding diamond seeds
US20100272627A1 (en) * 2009-04-23 2010-10-28 Chien-Min Sung Multi-Faceted Diamond and Associated Methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114471364A (en) * 2022-02-23 2022-05-13 内蒙古唐合科技有限公司 Seed crystal growth-free IIa type diamond large single crystal synthesis block and preparation method thereof

Also Published As

Publication number Publication date
WO2013156537A1 (en) 2013-10-24
GB2502434A (en) 2013-11-27
GB201206883D0 (en) 2012-06-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)