Synthesis and characterization of ceria–yttria co-stabilized zirconia (CYSZ) nanoparticles by sol–gel process for thermal barrier coatings (TBCs) applications

2015 ◽  
Vol 74 (3) ◽  
pp. 603-612 ◽  
Author(s):  
Morteza Hajizadeh-Oghaz ◽  
Reza Shoja Razavi ◽  
Ali Ghasemi
1992 ◽  
Vol 72-74 ◽  
pp. 61-70
Author(s):  
E.Y. Lee ◽  
R.R. Biederman ◽  
Yong Ho Sohn ◽  
R.D. Sisson

Author(s):  
C.R.C. Lima ◽  
U. Senturk ◽  
R.S. Lima ◽  
C.C. Berndt

Abstract Thermal barrier coatings have been extensively used in several industrial segments. The material used as an insulator in such systems has been partially stabilized zirconia (PSZ) plasma sprayed over a metallic bond coat layer. The ceramic layer is usually porous, thus improving insulation properties. The porosity also increases gas permeability and, therefore, reduces oxidation resistance of the coating. Post-treatments have been applied to reduce the open porosity and improve oxidation resistance. In this work thermal barrier coatings were applied on low carbon steel substrates using two sets of bond coat, i.e., metallic and metal-ceramic. The metallic bond coat was NiCrAlY. The metal-ceramic bond coat was a mixture of NiCrAlY and 8% yttria partially stabilized zirconia, which were applied by simultaneous feeding to the plasma torch from two powder feeders. A sol-gel method was employed to impregnate the porous ceramic top coat with alumina or zirconia. The samples in the as-sprayed and post-treated condition were characterized using mercury intrusion porosimetry (MIP), thermal conductivity. KEY WORDS: Thermal Conductivity, TBCs, Sol-Gel.


2011 ◽  
Vol 208 (2) ◽  
pp. 480-487 ◽  
Author(s):  
J. Fenech ◽  
M. Dalbin ◽  
A. Barnabe ◽  
J.P. Bonino ◽  
F. Ansart

2008 ◽  
Vol 202 (19) ◽  
pp. 4653-4659 ◽  
Author(s):  
S. Saravanan ◽  
G. Hari Srinivas ◽  
V. Jayaram ◽  
M. Paulraj ◽  
S. Asokan

2011 ◽  
Vol 46 (17) ◽  
pp. 5709-5714 ◽  
Author(s):  
Anup K. Bhattacharya ◽  
Patrick Reinhard ◽  
Walter Steurer ◽  
Valery Shklover

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