Patent ID: 6855236

Claim:
A component of a vacuum deposition apparatus, comprising: a component body; and a spray deposit coated on a surface of the component body and having surface roughness in which a mean spacing S of tops of local peak of profile is in a range from 50 to 150 μm, a distance from a mean line to a bottom of profile valley line Rv is in a range from 20 to 70 μm, and a distance from a mean line to a top of profile peak line Rp is in a range from 20 to 70 μm, wherein a difference in distance between the top of profile peak line Rp and the bottom of profile valley line Rv (Rp-Rv) is in a range from −11 to 6 μm so that a film adhered on the surface of the spray deposit grows with a stable columnar structure.