Thin 7YSZ, interfacial layer as cyclic durability (spallation) life enhancement for low conductivity TBCs
US7326470B2 · kind B2 · utility
18Cited by
4References
25Claims
0Family size
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Key dates
| Filing date | Apr 28, 2004 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Jan 10, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A spallation resistant metallic article comprising a metallic substrate, at least one ceramic thermal barrier coating comprising a zirconia base and at least one other element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, In, Y, Mo and C, rare earth oxides, scandium, and indium, and a ceramic bond coat located on at least a portion of the substrate and between the metallic substrate and the at least one ceramic thermal barrier coating wherein the ceramic bond coat is composed of yttria stabilized zirconia (YSZ).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.