Title:
METHOD FOR MANUFACTURING CUBIC BORON NITRIDE
Document Type and Number:
Japanese Patent JP3855671
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain cubic boron nitride with high mechanical strength in a manufacturing method of cubic boron nitride by ultrahigh pressure method for rising the conversion efficiency.
SOLUTION: In the method, catalytic materials are one or more kinds selected from LiMBN2 (M is shown as Ca, Sr, Ba, Ra, Be, and Mg), alkali metals, alkaline earth metals, their nitrides, and their boronitrides. The oxygen contents of LiMBN2, alkali metals, alkaline earth metals, their nitrides and boronitrides are 1% or less.
Inventors:
Makoto Iizuka
Application Number:
JP2001089029A
Publication Date:
December 13, 2006
Filing Date:
March 27, 2001
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
B01J3/00; C01B21/064; B01J27/24; C04B35/583; C04B35/5831; C04B35/645; C09K3/14; (IPC1-7): C01B21/064; B01J3/00; B01J27/24; C09K3/14
Domestic Patent References:
| JP2233510A | ||||
| JP3079272A | ||||
| JP59199513A | ||||
| JP61017405A |
Attorney, Agent or Firm:
Shinji Kakinuma
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