Effect of TiAl3 Content on Thermal Shock Resistance of Bionic Self-healing Thermal Barrier Coatings

作     者：Panpan Zhang Yujia Guo Zhihui Zhang Xiaofeng Zhang Qunli Zhang Jianhua Yao Panpan Zhang;Yujia Guo;Zhihui Zhang;Xiaofeng Zhang;Qunli Zhang;Jianhua Yao

作者机构：Institute of Laser Advanced ManufacturingZhejiang University of TechnologyHangzhou310023China Collaborative Innovation Center of High-End Laser Manufacturing Equipment(National“2011 Plan”)Zhejiang University of TechnologyHangzhou310023China The Key Laboratory of Bionic Engineering(Ministry of Education China)Jilin UniversityChangchun130022China Institute of New MaterialsGuangdong Academy of SciencesGuangzhou510650China 

出 版 物：《Journal of Bionic Engineering》 (仿生工程学报（英文版）)

年 卷 期：2022年第19卷第1期

页      面：126-138页

核心收录：

学科分类：081702[工学-化学工艺] 0806[工学-冶金工程] 08[工学] 0817[工学-化学工程与技术] 09[农学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0901[农学-作物学] 0836[工学-生物工程] 090102[农学-作物遗传育种] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China(Grant No.52105311) Natural Science Foundation of Zhejiang Province(Grant No.LQ21E010002) Fundamental Research Funds for the Provincial Universities of Zhejiang(Grant No.RF-A2020009) 

主　　题：Thermal barrier coating Laser Bionic self-healing Thermal shock resistance 

摘      要：Inspired by the self-healing function of biological organisms,Bionic Laser Alloying(BLA)process was adopted to fabricate the bionic self-healing Thermal Barrier Coatings(TBCs).The BLA with different fractions of TiAl3 self-healing agent and Ceria and Yttria-Stabilized Zirconia(CYSZ)on the plasma-sprayed 7YSZ TBCs was carried out by a pulsed Nd:YAG *** effect of TiAl3 content on the microstructure,phase composition,and thermal shock behaviors of the bionic self-healing TBCs were *** indicated that the bionic self-healing TBCs had better thermal shock resistance than that of the as-sprayed *** thermal shock resistance increased first and then decreased with increasing TiAl3 *** thermal shock resistance of the bionic self-healing TBCs with 15%TiAl3 is triple that of the as-sprayed *** one hand,the columnar crystals and vertical cracks could improve strain compatibility of TBCs during the thermal shock process;on the other hand,the TiAl3 as a self-healing agent reacted with oxygen in air at high temperature to seal the microcracks,thereby delaying the crack connection.