scholarly journals Phase stability and thermal insulation of YSZ and erbia-yttria co-doped zirconia EB-PVD thermal barrier coating systems

2020 ◽  
Vol 389 ◽  
pp. 125566 ◽  
Author(s):  
G. Boissonnet ◽  
C. Chalk ◽  
J.R. Nicholls ◽  
G. Bonnet ◽  
F. Pedraza
Keyword(s):  
Thermal Barrier Coating ◽  
Thermal Insulation ◽  
Phase Stability ◽  
Thermal Barrier ◽  
Barrier Coating ◽  
Co Doped

Preparation and Phase Stability of La2O3, Y2O3 Co-doped ZrO2 Ceramic Powder Application for Thermal Barrier Coating

2009 ◽  
Vol 24 (6) ◽  
pp. 1226-1230 ◽  
Author(s):  
Huai-Fei LIU ◽  
Song-Lin LI ◽  
Qi-Lian LI ◽  
Yong-Ming LI ◽  
Wu-Xi ZHOU
Keyword(s):  
Thermal Barrier Coating ◽  
Phase Stability ◽  
Ceramic Powder ◽  
Thermal Barrier ◽  
Barrier Coating ◽  
Co Doped

Phase Stability and Thermal Conductivity of La2O3, Y2O3 Stabilized ZrO2 Ceramic for Thermal Barrier Coating Application

2014 ◽  
Vol 1033-1034 ◽  
pp. 907-911 ◽  
Author(s):  
Huai Fei Liu ◽  
Xiang Xiong ◽  
Ya Lei Wang
Keyword(s):  
Thermal Conductivity ◽  
Thermal Barrier Coating ◽  
Phase Stability ◽  
Thermal Barrier ◽  
Coating Application ◽  
Barrier Coating ◽  
Heat Treated ◽  
Tbc Systems ◽  
Thermal Physical Properties ◽  
Co Doped

Rare earth oxides co-doped zirconia has been developed for application in thermal barrier coating (TBC) systems to promote the performance and durability. In this paper, the phase stability and thermal physical properties of 1mol.%La2O3, 4.5mol.%Y2O3stabilized ZrO2(LaYSZ) were investigated. After 100 h heat treated at 1400°C, the content of monoclinic phase in LaYSZ was 2.32 mol%, which is lower than that in YSZ (46.9 mol%). Result indicates that the LaYSZ has better phase stability and lower thermal conductivity than YSZ. The LaYSZ system can be explored as the candidate material as ceramic layer in TBC.

Self-Enhancing Thermal Insulation Performance of Bimodal-Structured Thermal Barrier Coating

2018 ◽  
Vol 27 (7) ◽  
pp. 1064-1075 ◽  
Author(s):  
Wei-Wei Zhang ◽  
Guang-Rong Li ◽  
Qiang Zhang ◽  
Guan-Jun Yang ◽  
Guo-Wang Zhang ◽  
...  
Keyword(s):  
Thermal Barrier Coating ◽  
Thermal Insulation ◽  
Thermal Barrier ◽  
Barrier Coating ◽  
Insulation Performance

Microstructure and phase stability of EB-PVD alumina and alumina/zirconia for thermal barrier coating applications

1997 ◽  
Vol 94-95 ◽  
pp. 131-136 ◽  
Author(s):  
U. Leushake ◽  
T. Krell ◽  
U. Schulz ◽  
M. Peters ◽  
W.A. Kaysser ◽  
...  
Keyword(s):  
Thermal Barrier Coating ◽  
Phase Stability ◽  
Thermal Barrier ◽  
Barrier Coating

Sc2O3 and Gd2O3 Co-Doped Strontium Zirconate as a New Thermal Barrier Coating Material

2011 ◽  
Vol 239-242 ◽  
pp. 1457-1462 ◽  
Author(s):  
Wen Ma ◽  
Feng Yu Song ◽  
Wen Shan Lun ◽  
Dong Xing Wang ◽  
Hong Ying Dong ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermal Barrier Coating ◽  
Positive Influence ◽  
Thermal Barrier ◽  
Second Phase ◽  
Strontium Zirconate ◽  
Co Doping ◽  
Thermal Expansion Coefficients ◽  
Barrier Coating ◽  
Co Doped

An advanced ceramic material of perovskite structure, Sc2O3(5 mol%)and Gd2O3(5 mol%) co-doped SrZrO3, was investigated as a material for thermal barrier coating (TBC) applications. Sr(Zr0.9Sc0.05Gd0.05)O2.95(SZSG) was synthesized using ball milling prior to solid-state sintering, and had a minor second phase of Gd2O3. The material showed good phase stability not only from room temperature to 1400°C, but also at high temperature of 1450°C for a long period, analyzed by DSC and XRD, respectively. The thermal expansion coefficients (TECs) of the sintered bulk SZSG were recorded by a high-temperature dilatometer and revealed a positive influence on phase transitions of SrZrO3by co-doping Sc2O3and Gd2O3. The thermal conductivity of SZSG had much lower values in contrast to that of SrZrO3and Sr(Zr0.8Gd0.2)O2.9in whole tested temperature range. The good chemical compatibility was observed for SZSG with 8YSZ or Al2O3powders. All the results revealed that SZSG might be a potential material for TBC applications at higher temperatures compared with 8YSZ.

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