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Material to Prevent Low Temperature Degradation of Zirconia

  • US 20060046070A1
  • Filed: 08/27/2004
  • Published: 03/02/2006
  • Est. Priority Date: 08/27/2004
  • Status: Active Grant
First Claim
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1. A degradation resistant composition of matter for use in living tissue comprising:

  • an yttria-stabilized tetragonal zirconia polycrystal substrate;

    a coating of alumina deposited on the substrate, said coating being deposited by ion beam assisted deposition in the presence of the substrate; and

    wherein said coating has a total porosity of less than about 1.0 percent.

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