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Biography

Wei Pan is a professor and director of the State Key Lab of New Ceramics and Fine Processing at Tsinghua University, China. Pan has published more than 170 papers on the journals of Phys. Rev. Lett., Phys. Rew. B, Appl. Phys. Lett., Adv. Mater., Chem. Mater., J. Am. Ceram. Soc., Acta Mater. etc. Pan is a member of the standing-committee of the Chinese Ceramic Society and member of the editorial board of several international journals. He is also the Fellow of the School of Engineering at the University of Tokyo.

Abstract

Increasing thermal efficiency and lower emissions require gas turbine designers to further increase the combustion temperature that leads to the high temperature components such as combustion chambers, blade and vanes surfaces face more rigorous conditions. Therefore, there is urgent demand to develop new ceramic coatings with even lower thermal conductivity, higher stability and durability than currently used thermal barrier coatings coating on the surface of high temperature alloy components. In this presentation, we introduce new class of refractory ceramics as candidate materials for thermal barrier coatings, including the structure design, the rule of introducing defects in the crystal structure to further decrease the thermal conductivity, and to increase the structure stability at high temperature; the idea for suppress of heat transfer at the high temperature by irradiation; the synthesis process and thermal properties. The mechanical properties at ambient and elevated temperature are also reported.