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Recommended Papers for: Thermal Barrier Coatings

Total Papers Found: 3

Low Thermal Conductivity Coatings for Gas Turbine Applications

Thermal barrier coatings (TBC) are plasma sprayed onto gas turbine parts in order to improve combustion efficiency and component life time. Two TBC are looked at in this report: yttria partially stabilized zirconia (YPSZ) and dysprosia partially stabilized zirconia (DyPSZ). Both the TPS and laser flash techniques were used to measure the thermal conductivity of the coatings and the results were compared. In addition the effect of barrier microstructure on ...

Author(s): , , ,

Effects of Impurity Content on the Sintering Characteristics of Plasma-Sprayed Zirconia

Yttria-stabilized zirconia (YSZ) powders containing varying amounts of SiO2 and Al2O3 impurities were plasma sprayed onto metallic substrates and subsequently investigated. The authors were interested in how the impurities affected sintering rates, thermal conductivity, linear contraction, and pore size and architecture among other things. The YSZ coatings were heat treated at 1400°C for 10 hours and then analyzed for the properties mentioned above. A machine was used to measure the ...

Author(s): , , , , ,

Properties and Performance of High-Purity Thermal Barrier Coatings

In order to prepare more thermally resistant materials for use as thermal barrier coatings, the authors performed experiments on yttrium stabilized-zirconia (7YSZ) in order to investigate sintering resistance and phase stability at high temperatures. It was theorized that the main factor that affected the sintering resistance and phase stability at high temperatures was the concentration of impurities (Al2O3 and Si2O) present in the 7YSZ. Therefore in this report ...

Author(s): , , , , ,