scholarly journals Low Thermal Conductivity, High Durability Thermal Barrier Coatings for IGCC Environments

2015 ◽  
Author(s):  
Eric Jordan ◽  
Maurice Gell
Keyword(s):  
Thermal Conductivity ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Low Thermal Conductivity ◽  
High Durability

Ultra-low thermal conductivity thermal barrier coatings from recycled fly-ash cenospheres

2011 ◽  
Vol 59 (6) ◽  
pp. 2556-2562 ◽  
Author(s):  
A. Chávez-Valdez ◽  
A. Arizmendi-Morquecho ◽  
G. Vargas ◽  
J.M. Almanza ◽  
J. Alvarez-Quintana
Keyword(s):  
Thermal Conductivity ◽  
Fly Ash ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Low Thermal Conductivity ◽  
Fly Ash Cenospheres

Low-thermal-conductivity plasma-sprayed thermal barrier coatings with engineered microstructures

2006 ◽  
Vol 54 (12) ◽  
pp. 3343-3349 ◽  
Author(s):  
A JADHAV ◽  
N PADTURE ◽  
E JORDAN ◽  
M GELL ◽  
P MIRANZO ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Low Thermal Conductivity ◽  
Plasma Sprayed

Low Thermal Conductivity YSZ Thermal Barrier Coatings Made by the Solution Precursor Plasma Spray Process

2014 ◽  
Author(s):  
E. H. Jordan ◽  
C. Jiang ◽  
M. Gell ◽  
J. Roth
Keyword(s):  
Thermal Conductivity ◽  
Thermal Barrier Coatings ◽  
Plasma Spray ◽  
Thermal Protection ◽  
High Fracture Toughness ◽  
Thermal Barrier ◽  
Solution Precursor Plasma Spray ◽  
Barrier Coatings ◽  
Low Thermal Conductivity ◽  
Solution Precursor

The vast majority of thermal barrier coatings (TBCs) are made using 7 wt% yttria stabilized zirconia (7YSZ) due to its high thermal expansion coefficient, high fracture toughness, relatively low thermal conductivity and modest use of rare earth elements (Y). Lower thermal conductivity in TBCs is highly desirable because it would allow thinner coatings and/or improved thermal protection. By arranging the porosity in layers using the solution precursor plasma spray (SPPS) process it has been demonstrated that a 7YSZ coating with 15–23% porosity can be reproducibly fabricated having a thermal conductivity of about 0.6W/m·K, approximately half of the thermal conductivity of air plasma spray (APS) TBCs. Preliminary tests show that both cyclic furnace durability and erosion resistance are comparable to APS TBCs.

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