Hard abrasive particle and method of producing same

Details Hard abrasive particle and method of producing same Hard abrasive particle and method of producing same

1990-06-04

1992-04-14

Dixon, Jr., William R.

Abrasive tool making process, material, or composition

Miscellaneous

51295, 51309, 428699, 428701, B24D 300

Patent

active

051044200

ABSTRACT:
The present invention relates to hard abrasive particles comprising diamond nuclei and cubic boron nitride layers coated on said diamond nuclei and a method of producing the same.
Diamond has the highest hardness but has not been used as grinding materials, abrasive compounds, cutting materials and the like of the iron group metals due to the reactivity thereof upon them at high temperatures.
Accordingly, the present invention provides hard abrasive particles comprising diamond nuclei and single crystal or polycrystal cubic boron nitride layers coating a surface of said diamond nuclei, in which the diamond nuclei are connected with the cubic boron nitride layers among atoms thereof, as materials having the hardness equal to that of diamond and capable of using for the grinding, the abrasion and the like of the iron group metals and a method of producing the same.

REFERENCES:
patent: 3142595 (1964-07-01), Wentroy, Jr.
patent: 4011064 (1977-03-01), Lee et al.
patent: 4297387 (1981-10-01), Beale
patent: 4734339 (1988-03-01), Schachner et al.

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