Fabrication and oxidation resistant behavior of plasma sprayed Si/Yb2Si2O7/LaMgAl11O19 coating for Cf/SiC composites at 1673 K

被引:18
|
作者
Fan, Wenjuan [1 ,2 ]
Zou, Binglin [2 ]
Fan, Cunyan [1 ,2 ]
Wang, Ying [2 ]
Cai, Xiaolong [2 ]
Tao, Shunyan [3 ]
Xu, Jiaying [2 ]
Wang, Chunjie [2 ]
Cao, Xuegiang [4 ]
Zhu, Ling [1 ]
机构
[1] Changsha Univ Sci & Technol, Hunan Prov Key Lab Mat Protect Elect Power & Tran, Sch Chem & Biol Engn, Changsha 410114, Hunan, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resources Utilizat, Changchun 130022, Jilin, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Coating Mat, Shanghai 200050, Peoples R China
[4] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Hubei, Peoples R China
关键词
C-f/SiC composites; Coatings; Oxidation resistance; Plasma sprayed; ENVIRONMENTAL BARRIER COATINGS; C/SIC COMPOSITES; PROTECTION; TEMPERATURE;
D O I
10.1016/j.ceramint.2016.09.171
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
C-f/SiC composites were plasma sprayed with Yb2Si2O7/LaMgAl11O19 coatings with and without Si bond layer. Microstructure and oxidation protection of the coatings at 1673 K were investigated. The results showed that the coatings have the same phase constituent as that of the powders and uniformly distributed on the substrate. The bonding interface between the coating and substrate with Si bond layer is better than that of without Si bond layer. After 15 cycles of heating at 1673 K for 90 min, the weight losses of the coated samples with and without Si bond layer were 2.54% and 21.89%, respectively, however, for the uncoated sample, its weight loss was up to 36.47%. To certain extent, the Si bond layer efficiently healed the porosity on the surface of substrate and relieved the mismatch of coefficient of thermal expansion (CTE) between the coating and substrate, and therefore significantly improved the oxidation protection of the coating. The difference of CTEs between the coating and substrate, the chemical reactions between the LaMgAl11O19 and Yb2Si2O7 layers and the holes and cracks inside Cf/SiC composites were disadvantageous to the oxidation resistance of the coatings.
引用
收藏
页码:392 / 398
页数:7
相关论文
共 50 条
  • [41] Corrosion behaviors and failure mechanism of plasma sprayed Yb2Si2O7/Si environmental barrier coatings exposed to CMAS+NaVO3
    Hu, Xunxun
    Chen, Yongguo
    Guo, Hongbo
    Xu, Huibin
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2025, 45 (03)
  • [42] Comparative study on high-temperature performance and thermal shock behavior of plasma-sprayed Yb2SiO5 and Yb2Si2O7 coatings
    Zhong, Xin
    Niu, Yaran
    Li, Hong
    Zhu, Tao
    Song, Xuemei
    Zeng, Yi
    Zheng, Xuebin
    Ding, Chuanxian
    Sun, Jinliang
    SURFACE & COATINGS TECHNOLOGY, 2018, 349 : 636 - 646
  • [43] As-Sprayed Highly Crystalline Yb2Si2O7 Environmental Barrier Coatings (EBCs) by Atmospheric Plasma Spray (APS)
    Arhami, Farzam
    Ben Ettouil, Fadhel
    Moreau, Christian
    JOURNAL OF THERMAL SPRAY TECHNOLOGY, 2023, 32 (2-3) : 706 - 718
  • [44] Preparation and characterization of a novel nanostructured Yb2Si2O7 feedstock used for plasma-sprayed environmental barrier coatings
    Li, Binxin
    Zhang, Xiaodong
    Zhang, Zhenguo
    Deng, Luwei
    Li, Qian
    Zhou, Feifei
    Xu, Baosheng
    Hu, Jin
    Wang, You
    CERAMICS INTERNATIONAL, 2023, 49 (07) : 10897 - 10905
  • [45] As-Sprayed Highly Crystalline Yb2Si2O7 Environmental Barrier Coatings (EBCs) by Atmospheric Plasma Spray (APS)
    Farzam Arhami
    Fadhel Ben Ettouil
    Christian Moreau
    Journal of Thermal Spray Technology, 2023, 32 : 706 - 718
  • [46] Correlation of Process Conditions, Porosity Levels and Crystallinity in Atmospherically Plasma Sprayed Yb2Si2O7 Environmental Barrier Coatings
    Vassen, Robert
    Bakan, Emine
    Sebold, Doris
    Sohn, Yoo Jung
    JOURNAL OF COMPOSITES SCIENCE, 2021, 5 (08):
  • [47] Interfacial reactions between B2O3 and spark plasma sintered Yb2Si2O7
    Guarriello, Rachel
    Hoglund, Eric
    Heinrich, Helge
    Opila, Elizabeth
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2021, 104 (10) : 5392 - 5401
  • [48] Steam oxidation performance of Yb2Si2O7 environmental barrier coatings exposed to CMAS
    Harder, Bryan J.
    Stokes, Jamesa L.
    Kowalski, Benjamin A.
    Stuckner, Joshua
    Setlock, John A.
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2024, 44 (04) : 2486 - 2498
  • [49] High-Temperature thermochemical interactions of molten silicates with Yb2Si2O7 and Y2Si2O7 environmental barrier coating materials
    Stokes, Jamesa L.
    Harder, Bryan J.
    Wiesner, Valerie L.
    Wolfe, Douglas E.
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2019, 39 (15) : 5059 - 5067
  • [50] Yb2Si2O7改性SiC/SiC复合材料的氧化行为研究(英文)
    穆爽
    马沁
    张禹
    沈旭
    杨金山
    董绍明
    无机材料学报, 2025, 40 (03) : 323 - 328