US2003108658A1PendingUtilityA1

Coating aluminium oxide ceramics with hydroxyl apatite

Priority: Dec 21, 1999Filed: Dec 21, 2000Published: Jun 12, 2003

Est. expiryDec 21, 2019(expired)· nominal 20-yr term from priority

Inventors:Hans Andersch Wolfgang Burger Herbert Richter Gert Richter

A61F 2310/00796A61L 27/42C04B 41/009B05D 3/12A61L 27/32C04B 41/89A61L 27/105C04B 2111/00836C23C 14/14C04B 41/52

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References

Claims

Abstract

The invention relates to a method for producing hydroxyapatite coated ceramics components. In a first step of the inventive method the ceramic component is provided with a Ti coating and in a second step a hydroxyapatite is applied to the Ti coating. The invention further relates to hydroxyapatite coated ceramic components produced according to the inventive method.

Claims

exact text as granted — not AI-modified

1 . Method for the manufacture of hydroxyapatite coated ceramic components, characterized in that in a first step the ceramic component is first provided with a Ti coating and in a second step the hydroxyapatite is applied to the Ti coating.  
     
     
         2 . Method according to  claim 1 , characterized in that the surface of the ceramic component is roughened before the first step.  
     
     
         3 . method according to  claim 1  or  2 , characterized in that the Ti coating applied in the first step is rough.  
     
     
         4 . Method according to one or more of  claims 1  to  3 , characterized in that the Ti coating applied in the first step is adjusted to a roughness of R a ≈40 to 50 μm.  
     
     
         5 . Method according to one or more of  claims 1  to  4 , characterized in that in the first step the titanium is deposited onto the surface of the ceramic component by means of the PVD process.  
     
     
         6 . Method according to one or more of  claims 1  to  5  characterized in that, instead of the Ti coating, by means of the PVD process a coating of the TiAl6V4 alloy is deposited.  
     
     
         7 . Method according to one or more of  claims 1  to  6 , characterized in that the Ti or TiAl6V4 coating applied in the first step is 5 μm thick.  
     
     
         8 . Method according to one or more of  claims 1  to  7 , characterized in that the Ti or TiAl6V4 layer applied in the first step is between 1 and 5 μm thick.  
     
     
         9 . Method according to one or more of  claims 1  to  8 , characterized in that the hydroxyapatite is sprayed onto the Ti or TiAl6V4 coating applied in the first step.  
     
     
         10 . Method according to one or more of  claims 1  to  9 , characterized in that the hydroxyapatite is applied to the Ti or TiAl6V4 coating by plasma coating.  
     
     
         11 . Method according to one or more of  claims 1  to  10 , characterized in that the ceramic component is an aluminum oxide ceramic.  
     
     
         12 . Method according to one or more of  claims 1  to  11 , characterized in that the ceramic component is a medical component.  
     
     
         13 . Method according to one or more of  claims 1  to  11 , characterized in that the ceramic component is a prosthesis.  
     
     
         14 . Hydroxyapatite coated ceramic component manufacturable according to one or more of the foregoing claims.

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