Ceramic-coated blade of gas turbine and method of producing same

Details Ceramic-coated blade of gas turbine and method of producing same Ceramic-coated blade of gas turbine and method of producing same

1998-02-02

2000-03-28

Turner, Archene

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

416241R, 416241B, 428469, 428472, 428697, 428699, 428701, 428621, 428632, B32B 1706

Patent

active

060429518

ABSTRACT:
A ceramic-coated blade of a gas turbine and a method of producing the same, in which the thickening of an Al.sub.2 O.sub.3 layer at the interface between a ceramic layer and a primary layer is sufficiently prevented for a long period of time, thereby positively suppressing the separation of the ceramic layer. Using powder of MCrAlY alloy (Co-32% Ni-21% Cr-8% Al-0.5% Y), a primary layer (alloy coating layer) is formed on a surface of a substrate made of a heat-resistant Ni base alloy (Rene'-80). Further, a heat-resistant ceramic layer, comprising a mixture of ion-conductive ZrO.sub.2 -8 wt. % Y.sub.2 O.sub.3 ceramic and insulative ceramic (e.g. Al.sub.2 O.sub.3), is formed on the alloy coating layer. This mixture has a columnar structure in which columnar crystals are grown by a gas phase in a direction of a thickness of the coating, or a porous structure in which flattened particles brought about from molten particles caused to fly at high velocity are laminated.

REFERENCES:
patent: 4344904 (1982-08-01), Yamada et al.
patent: 4495907 (1985-01-01), Kamo
patent: 4503130 (1985-03-01), Bosshart et al.
patent: 4916022 (1990-04-01), Solfest et al.
patent: 5059095 (1991-10-01), Kushner et al.
patent: 5080977 (1992-01-01), Zaplatynsky
The Transactions of the ASME Discussion 91-GT-40.
Small Committee Research Report of Heat Resistant Metallic Materials, 1996, vol. 36, No. 3, pp. 475-478.

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