The ceramic is a material with the Ceramic coating by CVD makes a boundary region between coating and substrate. The delamination is occurred at the boundary region. The control of boundary region is important for improving wear resistance of ceramic ...
The ceramic is a material with the Ceramic coating by CVD makes a boundary region between coating and substrate. The delamination is occurred at the boundary region. The control of boundary region is important for improving wear resistance of ceramic coating. The surface roughness of substrate changes for the control of boundary region. This study clarifies that the surface roughness of substrate influences on wear at the ceramic coating. In order to know the microscopic wear mechanism of CVD TiN coating, the wear process was observed in-situ during sliding in a SEM.VTR tribosystem. Three wear steps observed for CVD TiN coating With thickness of 1.5㎛. We propose a surface working method of substrate for increasing wear resistance of ceramic coating.