PVD Coating Defects

PVD coating contamination, it manifests as thin inorganic layers, dependent from deposition environments. These contaminants, they exhibit unique formation patterns, like irregular clustering on metallic substrates, which leads to tenacious adhesion. In laser cleaning applications, the removal challenges arise, particularly on aluminum surfaces, where the contamination persists under short pulses. It seems that on steel, behaviors differ, showing easier delamination yet risking substrate etching. The process yields distinct outcomes, influenced from wavelength selection, that demonstrates material-specific responses. Layers detach selectively, avoiding damage to the underlying coating. Shows effectiveness in preserving integrity.