| abstract |
Composite coatings, applied on metal substrates, maintain excellent adhesion when subjected to shearing forces such as encountered in metal stamping. This adhesion is obtained through first observing careful control over size distribution of particles associated with both the undercoating and the topcoating. Next control is exercised over comparative particle size selection for the undercoating versus the topcoating. Further, maintenance of other composite coating characteristics, e.g., corrosion resistance and impact adhesion, is stressed. |