Preparation and characterization of SrZrO3–La2Ce2O7 composite ceramics as a thermal barrier coating material

CaO‐MgO‐Al2O3‐SiO2 corrosion behavior of SrZrO3‐La2Ce2O7 composite ceramics

“…The S7L3, S5L5, S3L7 composite powders were synthesized by coprecipitation‐calcination method at 1400°C for 24 h with La(NO 3 ) 3 ·6H 2 O, Ce(NO 3 ) 3 ·6H 2 O, Zr(NO 3 ) 4 ·5H 2 O and Sr(NO 3 ) 2 (Tianjin Guangfu Fine Chemical Institute, AR, Tianjin, China) as the starting materials. The composite bulks were sintered by pressureless sintering at 1600 °C for 6 h and the detailed preparation procedures reported in our previous work 24 …”

“…The composite bulks were sintered by pressureless sintering at 1600 • C for 6 h and the detailed preparation procedures reported in our previous work. 24 A typical laboratory CMAS with a composition of 33CaO-9MgO-13AlO 1.5 -45SiO 2 (C 33 M 9 A 13 S 45 ) in the molar ratio was used in the tests. According to a report by Levi et al, 8,11 C 33 M 9 A 13 S 45 is the average composition of the deposits on aircraft turbines operating in different regions.…”

“…Among the new TBC materials, the (1‐ x )SrZrO 3 ‐ x La 2 Ce 2 O 7 ( x = 0.5) composite bulk has lower thermal conductivity (0.97 W m −1 K −1 , 1200 °C) than SrZrO 3 bulk at the same temperature range, and exhibits the highest coefficient of thermal expansion of 9.9–11.3 × 10 −6 K −1 (200–1200 °C). Therefore, the SrZrO 3 ‐La 2 Ce 2 O 7 composite ceramic is considered as a potential material for TBC applications at higher temperatures 24 . However, the CMAS corrosion performance of the SrZrO 3 ‐La 2 Ce 2 O 7 composite has not been reported.…”

“…Therefore, the SrZrO 3 -La 2 Ce 2 O 7 composite ceramic is considered as a potential material for TBC applications at higher temperatures. 24 However, the CMAS corrosion performance of the SrZrO 3 -La 2 Ce 2 O 7 composite has not been reported. In this work, the (1-x)SrZrO 3 -xLa 2 Ce 2 O 7 (x = 0.3, S7L3; x = 0.5, S5L5; x = 0.7, S3L7) composite bulks were fabricated.…”

High Near-Infrared Reflectance Orange Pigments of Fe-Doped La2W2O9: Preparation, Characterization, and Energy Consumption Simulation

“…Hence, it is of great significance to produce nontoxic inorganic pigments possessing high NIR reflectance. Lanthanides are broadly used in magnetic materials, luminescent materials, photocatalytic materials, and ceramic materials due to their special electronic layer structure. − Recently, lanthanide pigments with remarkable reflectance in the NIR region have been reported as benignant substitutes for commercial toxic pigments. For instance, Y 2 BaCuO 5 is a bright green pigment with NIR reflectance of 62%, Ce 2 S 3 is a red pigment with NIR reflectance of 77.09%, Pr 4+ -doped La 2 Ce 2 O 7 is a dark orange pigment with NIR reflectance of 72.47%, and Fe 3+ -doped YMnO 3 is a blue pigment with NIR reflectance of 60.6% .…”