Process for production of diamond abrasive grains

Details Process for production of diamond abrasive grains Process for production of diamond abrasive grains

1992-07-21

1993-03-16

Bell, Mark L.

Abrasive tool making process, material, or composition

Miscellaneous

51298, 51307, 51309, B24D 300

Patent

active

051940701

ABSTRACT:
Diamond abrasive grains are produced by a process which comprises steps of: regularly arranging a plurality of diamond crystal seeds on a first metal solvent plate, stacking a second solvent metal plate on the first solvent metal plate so that the diamond crystal seeds are sandwiched by the first solvent metal plate and the second solvent metal plate, and stacking a graphite raw plate on the second solvent metal plate to construct a production system for the diamond abrasive grains, heating the system or heating the system with pressurizing to a temperature above a solvent metal-graphite eutectic point through a temperature and pressure condition in which diamond is thermodynamically unstable to establish a temperature and pressure condition in which diamond is thermodynamically unstable, and heating the system or heating the system with pressurizing to establish a temperature and pressure condition in which diamond is thermodynamically stable and maintaining said condition.

REFERENCES:
patent: 4919974 (1990-04-01), McCune et al.
patent: 5104420 (1992-04-01), Yoshida et al.
patent: 5133332 (1992-07-01), Tanaka et al.

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