Theoretical Investigation on Mechanical and Thermal Properties of a Promising Thermal Barrier Material: Yb
3
Al
5
O
12
Zhou Yanchun
*
, Xiang Huimin, Feng Zhihai
Fig. 1. Crystal structure of Yb 3 Al 5 O 12 and typical constructive units in Yb 3 Al 5 O 12 .