JPS5556007A - Diamond synthesizing method - Google Patents

Diamond synthesizing method

Info

Publication number
JPS5556007A
JPS5556007A JP12956178A JP12956178A JPS5556007A JP S5556007 A JPS5556007 A JP S5556007A JP 12956178 A JP12956178 A JP 12956178A JP 12956178 A JP12956178 A JP 12956178A JP S5556007 A JPS5556007 A JP S5556007A
Authority
JP
Japan
Prior art keywords
sample
pipe
press
graphite
cylinder
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.)
Pending
Application number
JP12956178A
Other languages
Japanese (ja)
Inventor
Kaoru Kawada
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.)
Tungaloy Corp
Original Assignee
Toshiba Tungaloy Co 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 Toshiba Tungaloy Co Ltd filed Critical Toshiba Tungaloy Co Ltd
Priority to JP12956178A priority Critical patent/JPS5556007A/en
Publication of JPS5556007A publication Critical patent/JPS5556007A/en
Pending 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
    • B01J3/08—Application of shock waves for chemical reactions or for modifying the crystal structure of substances
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

PURPOSE:To reduce the time required to synthesize diamond and to enhance the yield by holding a graphite-contg. reaction sample at a predetermined high temp. and instantaneously applying mechanically striking energy as a dynamic high press. to the sample. CONSTITUTION:Ni as metal catalyst is added to graphite and press formed into a cylindrical shape to prepare reaction sample 1. Sample 1 is put into MgO pipe 2, platinum resistance wire 3 is wound round pipe 2, and pipe 2 is buried in talc press. medium 4 of heat insulation. Medium 4 is then set in cylinder 6 combined with lower punch 5. After heating the inside of pipe 2 to above 1200 deg.C through wire 3, striking energy of 3 tons.meter or more is applied to sample 1 through upper punch 7 is cylinder 6 to maintain a high press. required to convert sample 1 into diamond during an instantaneous striking time of about 20msec.
JP12956178A 1978-10-23 1978-10-23 Diamond synthesizing method Pending JPS5556007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12956178A JPS5556007A (en) 1978-10-23 1978-10-23 Diamond synthesizing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12956178A JPS5556007A (en) 1978-10-23 1978-10-23 Diamond synthesizing method

Publications (1)

Publication Number Publication Date
JPS5556007A true JPS5556007A (en) 1980-04-24

Family

ID=15012528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12956178A Pending JPS5556007A (en) 1978-10-23 1978-10-23 Diamond synthesizing method

Country Status (1)

Country Link
JP (1) JPS5556007A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2269953A2 (en) 2001-08-30 2011-01-05 Tadamasa Fujimura Stable aqueous suspension liquid of finely divided particles metallic film containing diamond particles and method of producing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2269953A2 (en) 2001-08-30 2011-01-05 Tadamasa Fujimura Stable aqueous suspension liquid of finely divided particles metallic film containing diamond particles and method of producing the same
EP2269952A2 (en) 2001-08-30 2011-01-05 Tadamasa Fujimura Stable aqueous suspension liquid of finely divided particles metallic film containing diamond particles and method of producing the same

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