文献类型：期刊文献

英文题名：Interaction between Yb2O3-Y2O3 co-stabilized ZrO2 ceramic powder and molten silicate deposition, and its implication on thermal barrier coating application

作者：Fang, Huanjie[1];Wang, Weize[1];Deng, Shujuan[1];Yang, Ting[1];Zhu, Han[1];Huang, Jibo[2];Ye, Dongdong[3];Guo, Xueping[4]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Key Lab Pressure Syst & Safety, Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Guangdong Acad Sci, Inst New Mat, Natl Engn Lab Modern Mat Surface Engn Technol, Guangzhou 510650, Peoples R China;[3]Anhui Polytech Univ, Sch Mech Engn, Wuhu 241000, Peoples R China;[4]Jimei Univ, Marine Engn Coll, 185 Yinjiang Rd, Xiamen 361021, Peoples R China

年份：2021

卷号：180

外文期刊名：MATERIALS CHARACTERIZATION

收录：;EI(收录号：20213610857241);WOS:【SCI-EXPANDED(收录号:WOS:000701949100002)】；

基金：This research is sponsored by the National Natural Science Foundation of China (Grant No. 51775189), Shanghai Aerospace Science and Technology Innovation Fund (SAST2019056), Science and Technology Project of Fujian Province (2019H6017, FJHJF-L-2020-6).

语种：英文

外文关键词：Calcium-magnesium-alumina-silicate; Thermal barrier coatings; Transport behavior; Corrosion mechanism

摘要：Currently molten silicate deposition in thermal barrier coatings application is an ongoing challenge for material scientists. To some extent, it has already been the greatest weakness of traditional yttria partially stabilized zirconia material. Thus new material candidates and strategies that can mitigate calcium-magnesium-aluminasilicate corrosion are urgently needed. To this end, a 'model' experiment involving high-temperature interactions between Yb2O3-Y2O3 co-stabilized ZrO2 ceramic powders and CMAS glass was conducted in this study. This study proposes a simple but effective methodology for comparing the transport behavior of Yb3+ and Y3+ during the interaction which provides further understanding of the anti-corrosion mechanism. After exposure at 1300 degrees C for various durations, less degradation was observed in YbYSZ samples. Further analyses ascribed the enhancement of CMAS-mitigating capability to the low diffusion rate of Yb-3+, which was highly beneficial for maintaining the microstructure and phase stability. Additionally, the potential of YbYSZ as a CMAS-resistant material for TBCs was supported by the dramatically improved thermo-physical and mechanical properties of YbYSZ compared to those of conventional YSZ.