| 摘要 |
The method involves taking a support for a ceramic part and a laser beam, that are able to move relative to each other in a XY plane, and performing plasma treatment of the part using a gas e.g. nitrogen, so as to convert a surface layer of metallic oxide into stoichiometric ceramic e.g. metal nitride. The part is locally illuminated with the laser beam in order to provide sufficient energy to cause a local change in color by altering the stoichiometry of the surface layer. The surface of the part is scanned using the laser beam to form a determined pattern. |
