National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

DE2004833299

Publication Date	2004
Personal Author	Mao, S. X.
Page Count	12
Abstract	To improve the hot corrosion resistance of YSZ thermal barrier coatings, a 25 (micro)m and a 2 (micro)m thick Al(sub 2)O(sub 3) overlay were deposited by HVOF thermal spray onto to the surface of YSZ coating. Oxidation at high temperature and hot corrosion tests showed that Al(sub 2)O(sub 3) overlay deposited on the YSZ TBCs surface can not only reduce the hot corrosion rate, but also significantly prevents the bond coat from oxidation.
Keywords	Gas turbines Barrier coatings Corrosion resistance Oxidation Protective coatings Coatings Aluminum oxides Yttrium oxides Zirconium oxides Vandates Thermal barrier coatings
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Pittsburgh Univ., PA. Dept. of Mechanical Engineering.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200513

Impermeable Thin Al(sub 2)O(sub 3) Overlay for TBC Protection from Sulfate and Vanadate Attack in Gas Turbines.

Impermeable Thin Al(sub 2)O(sub 3) Overlay for TBC Protection from Sulfate and Vanadate Attack in Gas Turbines.
DE2004833299

Publication Date	2004
Personal Author	Mao, S. X.
Page Count	12
Abstract	To improve the hot corrosion resistance of YSZ thermal barrier coatings, a 25 (micro)m and a 2 (micro)m thick Al(sub 2)O(sub 3) overlay were deposited by HVOF thermal spray onto to the surface of YSZ coating. Oxidation at high temperature and hot corrosion tests showed that Al(sub 2)O(sub 3) overlay deposited on the YSZ TBCs surface can not only reduce the hot corrosion rate, but also significantly prevents the bond coat from oxidation.
Keywords	Gas turbines Barrier coatings Corrosion resistance Oxidation Protective coatings Coatings Aluminum oxides Yttrium oxides Zirconium oxides Vandates Thermal barrier coatings
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Pittsburgh Univ., PA. Dept. of Mechanical Engineering.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200513