GB1048971A - Improvements in diamond and method for its production - Google Patents

Improvements in diamond and method for its production

Info

Publication number
GB1048971A
GB1048971A GB1650963A GB1650963A GB1048971A GB 1048971 A GB1048971 A GB 1048971A GB 1650963 A GB1650963 A GB 1650963A GB 1650963 A GB1650963 A GB 1650963A GB 1048971 A GB1048971 A GB 1048971A
Authority
GB
United Kingdom
Prior art keywords
pressure
diamond
temperature
solid
production
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
Application number
GB1650963A
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Publication of GB1048971A publication Critical patent/GB1048971A/en
Expired 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
    • 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
    • B01J3/065—Presses for the formation of diamonds or boronitrides
    • 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
    • B01J2203/065—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
    • B01J2203/065—Composition of the material produced
    • B01J2203/066—Boronitrides
    • 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
    • B01J2203/068—Crystal growth

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Press Drives And Press Lines (AREA)
  • Powder Metallurgy (AREA)
  • Fuel Cell (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

A carbonaceous material, for example graphite is converted to diamond by a method comprising (a) placing the material in a high pressure, high temperature apparatus (see Division B1-B2, Specification 1,048,976), (b) subjecting the material to a pressure at least as high as the pressure of the solid diamond-solid graphiteliquid carbon triple point T2 in Fig. 7; (c) <PICT:1048971/C1/1> raising the temperature of the material so that the material is subjected to conditions of temperature and pressure above the line Th in Fig. 7, the maximum temperature applied to the material being less than the melting temperature of diamond at the operating pressure; (d) returning the material to normal conditions of temperature and pressure; (e) recovering diamond from the apparatus.
GB1650963A 1962-05-02 1963-04-26 Improvements in diamond and method for its production Expired GB1048971A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19191462A 1962-05-02 1962-05-02
US21479362A 1962-07-30 1962-07-30

Publications (1)

Publication Number Publication Date
GB1048971A true GB1048971A (en) 1966-11-23

Family

ID=26887528

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2588264D Expired GB1048976A (en) 1962-05-02 1963-04-26 A high pressure apparatus
GB1650963A Expired GB1048971A (en) 1962-05-02 1963-04-26 Improvements in diamond and method for its production

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2588264D Expired GB1048976A (en) 1962-05-02 1963-04-26 A high pressure apparatus

Country Status (7)

Country Link
JP (1) JPS5146758B1 (en)
BE (1) BE631830A (en)
CH (1) CH472336A (en)
DE (1) DE1284405B (en)
GB (2) GB1048976A (en)
NL (2) NL141162B (en)
SE (1) SE313551B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009007248A (en) * 2008-08-15 2009-01-15 Sumitomo Electric Ind Ltd Diamond polycrystal body
CN104162382B (en) * 2014-06-30 2016-03-30 中南钻石有限公司 A kind of superhard material high-pressure synthesis block gets stem stem device automatically
CN106764397B (en) * 2017-01-20 2019-01-29 吉林大学 The encapsulation of situ high pressure gas compression and pressure monitor system

Also Published As

Publication number Publication date
SE313551B (en) 1969-08-18
NL292250A (en)
JPS5146758B1 (en) 1976-12-10
CH472336A (en) 1969-05-15
GB1048976A (en) 1966-11-23
DE1284405B (en) 1968-12-05
BE631830A (en)
NL141162B (en) 1974-02-15

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