Method of decorating a ceramic part
US7910854B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2007 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Feb 23, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/82
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention proposes a method of locally colouring a part made of ceramic material of the metallic oxide type mainly including the following steps of taking a support for the part and a laser, able to move relative to each other in an XY plane, performing a plasma treatment of the part using a gas containing one element selected from among nitrogen an carbon, so as to convert a surface layer of metallic oxide, into a substantially stoichiometric ceramic chosen from among metal nitrides and carloides, locally illuminating the part with the laser beam so as to provide sufficient energy to cause a local change in colour by altering the stoichiometry of the surface layer, and scanning the surface of the part using the laser beam so as to form a determined pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.