JPS56100122A - Diamond synthesizing method - Google Patents

Diamond synthesizing method

Info

Publication number
JPS56100122A
JPS56100122A JP281880A JP281880A JPS56100122A JP S56100122 A JPS56100122 A JP S56100122A JP 281880 A JP281880 A JP 281880A JP 281880 A JP281880 A JP 281880A JP S56100122 A JPS56100122 A JP S56100122A
Authority
JP
Japan
Prior art keywords
heater
temp
gradient
chamber
heaters
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.)
Granted
Application number
JP281880A
Other languages
Japanese (ja)
Other versions
JPS6329581B2 (en
Inventor
Akio Hara
Shuji Yatsu
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP281880A priority Critical patent/JPS56100122A/en
Publication of JPS56100122A publication Critical patent/JPS56100122A/en
Publication of JPS6329581B2 publication Critical patent/JPS6329581B2/ja
Granted 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
    • 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
    • B01J2203/068—Crystal growth

Abstract

PURPOSE:To obtain diamond of high purity by placing heaters at a central part and the outermost part of a reaction chamber for growing diamond and givig a temp. gradient to the chamber in the radius direction to effectively utilize the volume of the chamber. CONSTITUTION:The 1st heater 15 is placed at a central part of the reaction chamber, and carbon supply source 13, flux metal 12, seed crystal diamond 11 and the 2nd heater 17 are arranged in order around heater 15 with insulating sleeve 14 in-between. By regulatig calorific values of heaters 15, 17, a subtle temp. gradient is given. The ratio of the calorific value of heater 15 to that of heater 17 is determined by cut and try. Most of the whole heating is, however, dependent on heater 17 in principle, and heater 15 scts as an auxiliary heater for giving the temp. gradient. heaters 15, 17 are preferably made of graphite. The temp. gradient is one descending from the center of the chamber in the radius direction.
JP281880A 1980-01-14 1980-01-14 Diamond synthesizing method Granted JPS56100122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP281880A JPS56100122A (en) 1980-01-14 1980-01-14 Diamond synthesizing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP281880A JPS56100122A (en) 1980-01-14 1980-01-14 Diamond synthesizing method

Publications (2)

Publication Number Publication Date
JPS56100122A true JPS56100122A (en) 1981-08-11
JPS6329581B2 JPS6329581B2 (en) 1988-06-14

Family

ID=11539984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP281880A Granted JPS56100122A (en) 1980-01-14 1980-01-14 Diamond synthesizing method

Country Status (1)

Country Link
JP (1) JPS56100122A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152214A (en) * 1983-02-14 1984-08-30 Sumitomo Electric Ind Ltd Synthesis of diamond
JPS59169994A (en) * 1983-03-14 1984-09-26 Showa Denko Kk Growth of diamond crystal
EP0157393A2 (en) * 1984-04-04 1985-10-09 Sumitomo Electric Industries, Ltd. Method of synthesizing diamond

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0447480U (en) * 1990-08-28 1992-04-22

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152214A (en) * 1983-02-14 1984-08-30 Sumitomo Electric Ind Ltd Synthesis of diamond
JPH0380533B2 (en) * 1983-02-14 1991-12-25 Sumitomo Electric Industries
JPS59169994A (en) * 1983-03-14 1984-09-26 Showa Denko Kk Growth of diamond crystal
JPH0360797B2 (en) * 1983-03-14 1991-09-17 Showa Denko Kk
EP0157393A2 (en) * 1984-04-04 1985-10-09 Sumitomo Electric Industries, Ltd. Method of synthesizing diamond

Also Published As

Publication number Publication date
JPS6329581B2 (en) 1988-06-14

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