A thermal barrier coating (TBC) consisting of CoNiCrAlY bonding layer and ZrO_2+Y_2O_3 surface layer was formed on the TiAl alloy surface by plasma spraying.

• 采用等离子喷涂方法在TiAl合金表面喷涂 ,得到由CoNiCrAlY粘结层和 (ZrO2 +Y2 O3)陶瓷外层组成的双层结构的热障涂层。