Preparation of SrZrO3 Thermal Barrier Coating by Solution Precursor Plasma Spray

Research Progresses on Ceramic Materials of Thermal Barrier Coatings on Gas Turbine

“…Although the phase stability is go phase t-ZrO2 in the prepared coatings; it is easy to occur phase cha above 1723 K, and performance disadvantages exist such as low frac sintering, and poor corrosion resistance. Many researches have opt properties of SrZrO3 further [101,102]. Matiullah et al [103,104] doped La2Ce2O7 to increase the concentration of point defects and phonon sc The above studies showed that the coating prepared by A 2 B 2 O 7 type compounds exhibited relatively comprehensive excellent properties, with lower thermal conductivity, higher thermal stability, and higher thermal expansion coefficient compared with traditional ceramic materials.…”

“…Although the phase stability is good, there is a second phase t-ZrO 2 in the prepared coatings; phase change is easy to take place at temperatures above 1723 K, and performance disadvantages exist such as low fracture toughness, easy sintering, and poor corrosion resistance. Many researches have optimized the material properties of SrZrO 3 further [101,102]. Matiullah et al [103,104] doped SrZrO 3 with Yb 2 O 3 , La 2 Ce 2 O 7 to increase the concentration of point defects and phonon scattering, and reduce the thermal conductivity.…”

Mechanical properties, oxygen barrier property, and chemical stability of RE3NbO7 for thermal barrier coating

“…[1][2][3] However, with the increase in the operating temperature in next-generation gas turbines, YSZ can no longer be a material of choice in TBC due to the phase degradation above 1200°C, which causes failure and spallation of the coatings. 1,3,4 There have already been many efforts to develop novel TBC materials, including pyrochlore or fluorite structure oxides, [5][6][7] rare earth aluminum oxides, 8,9 perovskite oxides, [10][11][12] rare earth or metal phosphates, 13,14 rare earth tantalite, [15][16][17] rare earth silicates, [18][19][20][21] and Y-Si-O-N oxynitrides, [22][23][24] etc. Among these candidate materials, RE 2 Zr 2 O 7 -type rare earth zirconates with either pyrochlore or fluorite structure has the most potential and already been applied in some J-class gas turbines.…”