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ARTICLES HAVING DAMAGE-TOLERANT THERMAL BARRIER COATING

  • US 20170145836A1
  • Filed: 11/24/2015
  • Published: 05/25/2017
  • Est. Priority Date: 11/24/2015
  • Status: Active Grant
First Claim
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1. An article comprising:

  • a plurality of coating layers disposed over a substrate, the plurality comprising an inner layer and an outer layer, whereina) the outer layer is more resistant to infiltration by nominal CMAS relative to 8 weight percent yttria-stabilized zirconia at a temperature of 1300 degrees Celsius; and

    b) the inner layer has, in a temperature range from about 1000 degrees Celsius to about 1200 degrees Celsius, a thermal resistance in a range from about 9×

    10

    5
    degree Kelvin per watt to about 23×

    10

    5
    degree Kelvin per watt.

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