公开(公告)号：US3743703A

公开(公告)日：1973-07-03

申请号：US3743703D

申请日：1970-11-18

Applicant: PRIKHNA A ,  SHULZHENKO A ,  KATSAI M

Inventor： SHULZHENKO A ,  KATSAI M ,  PRIKHNA A

IPC: B01J3/06 ,  C01B31/06

CPC classification number: B01J3/062 ,  B01J2203/061 ,  B01J2203/0655 ,  B01J2203/068

Abstract: DIAMOND IS SYNTHESIZED BY SUBJECTING A MIXTURE OF GRAPHITE AND A METAL CATALYST TO A TEMPERATURE OF AT LEAST 1150*C. AND A PRESSURE OF AT LEAST 40 KBARS, THROUGHOUT THE ENTIRE VOLUME OF THE CATALYST THERE BEING DISPERSED GRAPHITE CRYSTALLITES. THE PROCESS ENABLES ONE TO PREPARE A LARGE NUMBER OF SEPARATE, SMALL, WELL DEFINED DIAMOND MONOCRYSTALS IN A RELATIVELY SHORT TIME. THE DIAMOND PRODUCT HAS HIGH ABRASION PROPERTIES.