Abstract
A series of Ba2(YbxDy1–x)AlO5 (x=0,0.1,0.2,0.3) ceramics for thermal barrier coatings (TBCs) were prepared by solid state reaction and hot-pressed sintering. Their phase composition, microstructure and the thermophysical properties were investigated. The results showed that single-phase Ba2(YbxDy1–x)AlO5 (x=0,0.1,0.2,0.3) with perovskite-like structure were prepared, and performed excellent phase stability under 1400°C. As a function of increasing x, the thermal conductivity of Ba2(YbxDy1–x)AlO5 decreased firstly and then increased. The minimum value (1.02W·m−1·K−1) was achieved for the sample with the same composite point x=0.1. The thermal expansion coefficient of the ceramics increased through doping with a maximum value around 11.6×10−6K−1.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
