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SYSTEM AND METHOD FOR MAKING A GRADED BARRIER COATING

  • US 20090297813A1
  • Filed: 12/01/2008
  • Published: 12/03/2009
  • Est. Priority Date: 06/30/2004
  • Status: Active Grant
First Claim
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1. An assembly comprising:

  • a device; and

    a graded-composition barrier coating disposed on a surface of said device, said coating comprising;

    a first zone defined by a first thickness comprising a first material and a second material wherein a composition of said first zone varies substantially continuously across said first thickness; and

    a second zone defined by a second thickness which is substantially free of any of said first material.

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