Patent ID: 7910218
Filing Date: 2011-03-22
Classification: C23C,Y10T

Abstract:
1. A refurbished component for a process chamber, the component comprising a titanium structure having a refurbished textured titanium metal coating, wherein the component is refurbished by: (i) immersing the component in a cleaning solution to remove an original titanium coating to expose an intermetallic compound on the titanium structure of the component; (ii) removing the intermetallic compound by bead blasting with blasting beads having a bead diameter of less than about 180 micrometers propelled by a gas pressurized to a pressure of less than about 45 psi to form an exposed surface of the structure; (iii) texturizing the exposed surface of the titanium structure by bead blasting with blasting beads having a bead diameter of less than about 1000 micrometers, the blasting beads being propelled by a gas pressurized to a pressure of less than about 60 psi, to form a textured surface having a surface roughness average of from about 150 microinches to about 350 microinches; and (iv) forming the refurbished textured titanium metal coating on and in contact with the textured surface of the titanium structure by twin-wire arc spray coating, whereby the refurbished component is capable of being refurbished by the method at least about 15 times substantially without failure of the component.