Method of and apparatus for tribochemically finishing ceramic wo

Details Method of and apparatus for tribochemically finishing ceramic wo Method of and apparatus for tribochemically finishing ceramic wo

1996-04-10

1998-10-06

Derrington, James

Etching a substrate: processes

Nongaseous phase etching of substrate

Using film of etchant between a stationary surface and a...

216 89, 216 90, 216 99, 264138, 264162, 264340, 264341, 264678, 451 41, 451 53, B24B 100, B24D 500

Patent

active

058172459

ABSTRACT:
An abrasive wheel made of an abrasive which is chemically reactive with a ceramic workpiece and a binder mixed with the abrasive is held against the ceramic workpiece at a temperature ranging from 40.degree. C. to 300.degree. C. preferably 100.degree. C. to 180.degree. C., under at least an atmospheric pressure in a moistening atmosphere within a pressure vessel. The abrasive wheel is rotated in abrading contact with the ceramic workpiece. A surface layer of the ceramic workpiece which is held against the abrasive wheel is mechanically abraded and also subjected to a tribochemical reaction with the abrasive wheel, so that the surface layer of the ceramic workpiece can smoothly and neatly be removed from the ceramic workpiece. The ceramic workpiece thus ground is finished highly accurately and efficiently.

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