Adjustment of mosaic spread for highly oriented pyrolytic graphi

Details Adjustment of mosaic spread for highly oriented pyrolytic graphi Adjustment of mosaic spread for highly oriented pyrolytic graphi

1996-10-11

1998-08-25

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264 401, 264 81, B29C 4300

Patent

active

057980756

ABSTRACT:
This invention is directed to a method for shifting the mosaic spread of highly oriented pyrolytic graphite ("HOPG") into a preselected narrow range. The method involves selecting HOPG samples having a mosaic spread which lies below a desired mosaic spread range and cold working the selected samples to form a textured surface sufficent to shift the mosaic spread of the samples into the desired mosaic spread range. The textured surface is preferably imprinted by pressing the samples between metal dies with at least one of the dies having a knurled surface.

REFERENCES:
patent: 5552008 (1996-09-01), Hecht

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