Metallic article having a thermal barrier coating and a method of application thereof

A coated metallic article, comprising:

• a bond coating on the metallic article;
• and
• a ceramic thermal barrier coating on the bond coating, the ceramic thermal barrier coating comprising zirconia, a first metallic oxide to stabilize the zirconia, a second metallic oxide and a third metallic oxide to reduce the thermal conductivity of the ceramic thermal barrier coating, the second metallic oxide and third metallic oxide being distributed substantially evenly throughout the ceramic thermal barrier coating, the metallic ion of the second metallic oxide having an ionic radius different from the ionic radius of the zirconium ion to reduce phonon thermal conductivity of the ceramic thermal barrier coating, and the third metallic oxide absorbs energy in the 0.3 microns to 5 microns waveband to reduce photon thermal conductivity.

A method of applying a thermal barrier coating on a metallic article, comprising the steps of:

• forming a bond coating on the metallic article;
• and
• applying a ceramic thermal barrier coating to the bond coating, the ceramic thermal barrier coating comprising zirconia, a first metallic oxide to stabilize the zirconia and a second metallic oxide to reduce the thermal conductivity of the ceramic thermal barrier coating, the second metallic oxide being distributed substantially evenly throughout the ceramic thermal barrier coating, the metallic ion of the second metallic oxide having an ionic radius different from the ionic radius of the zirconium ion to reduce phonon thermal conductivity of the ceramic thermal barrier coating, and the second metallic oxide absorbs energy in the 0.3 microns to 5 microns waveband to reduce photon thermal conductivity.

A method of applying a thermal barrier coating on a metallic article, comprising the steps of:

• forming a bond coating on the metallic article;
• and
• applying a ceramic thermal barrier coating to the bond coating, the ceramic thermal barrier coating comprising zirconia, a second metallic oxide and a third metallic oxide to reduce the thermal conductivity of the ceramic thermal barrier coating, the second metallic oxide and third metallic oxide being distributed substantially evenly throughout the ceramic thermal barrier coating, the metallic ion of the second metallic oxide having an ionic radius different from the ionic radius of the zirconium ion to reduce phonon thermal conductivity of the ceramic thermal barrier coatings and the third metallic oxide absorbs energy in the 0.3 microns to 5 microns waveband to reduce photon thermal conductivity.