Effect of CMAS attack behaviour on stress distribution in double-ceramic-layer thermal barrier coatings

Liu, Yangguang; Wang, Yihao; Fang, Huanjie; Wang, Weize; Li, Kaibin; Zhang, Chengcheng

doi:10.1016/j.ceramint.2022.11.040

Cited by 10 publications

(4 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…S1). Furthermore, the average TEC of the SYLHYb bulk sample was 10.19 ×10 −6 K −1 for 200-1400 °C, which was slightly higher than that of GZ bulk sample, whereas the average TEC of the commercial YSZ sample was ~11 × 10 −6 K −1 [51] .…”

Section: J U S T a C C E P T E Dmentioning

confidence: 87%

See 1 more Smart Citation

Design and experimental investigation of potential low-thermal-conductivity high-entropy rare-earth zirconates

Liu,

Dong,

Zhang

et al. 2024

Journal of Advanced Ceramics

View full text Add to dashboard Cite

Section: J U S T a C C E P T E Dmentioning

confidence: 87%

“…Compared with YSZ [51] and other silicate [55] , phosphate [56] , tantalate [57] , and zirconate [18] TBC materials, the SYLHYb bulk has lower thermal conductivity and higher TEC, indicating that the HE-RE2Zr2O7 bulk samples designed by theoretical calculation are promising for next-generation TBCs.…”

Section: J U S T a C C E P T E Dmentioning

confidence: 99%

Design and experimental investigation of potential low-thermal-conductivity high-entropy rare-earth zirconates

Liu,

Dong,

Zhang

et al. 2024

Journal of Advanced Ceramics

View full text Add to dashboard Cite

“…Reference [7] shows that the thickness of each layer has a significant impact on the service life of the TBC system. The thickness of the TC layer is generally 300 µm, and the coating in the industrial gas turbine can reach 600 µm [32]. The thickness of the BC layer of a typical APS TBC is 75~150 µm, and the thickness of the TGO layer is generally 1~10 µm.…”

Section: Geometric Modelmentioning

confidence: 99%

“…where the interface morphology is determined by A and λ (A = 30 µm: interface amplitude, λ = 100 µm: interface wavelength) [7,32].…”

Section: Geometric Modelmentioning

confidence: 99%

Numerical Simulation of the Residual Stress at the Interface between Thermal Barrier Coating and Nickel-Based Single-Crystal Superalloy Based on Crystal Plasticity Theory

Liu,

Wang,

Yang

et al. 2023

Coatings

Self Cite

View full text Add to dashboard Cite

Residual stress plays an important role in the formation and growth of cracks in thermal barrier coatings and single-crystal superalloy substrates. In this study, a finite element model for a planar double-layer thermal barrier coating and a crystal plasticity finite element model based on dislocation slip-induced plastic deformation of single-crystal materials were established to analyze the residual stress in the coatings and the substrate, considering the creep and crystal plasticity of the substrate materials. The simulation results show that the thermal barrier coatings bear most of the stress generated by high temperatures, and the residual stress of the substrate is small. By comparing the two material properties to calculate the interface stress when the amplitude of the interface between the substrate and the coating is 30 μm and the thickness of the thermal grown oxide layer is 5 µm, the interfacial stress of the substrate at the macro scale was found to be similar to the interfacial stress at the micro slip system scale. Based on the cumulative shear strain, it was determined that the [001]-, [011]-, and [111]-oriented alloys activated the 12, 8, and 4 groups, respectively, under the combined action of thermal stress and centrifugal force of the coating. Comparing the activation of different initial orientation slip systems and the magnitude of the yield stress provides a theoretical foundation to study the structural integrity of single-crystal alloys.

show abstract

Mechanical, thermal and CMAS resistance properties of high-entropy (Gd0.2Y0.2Er0.2Tm0.2Yb0.2)2Zr2O7 ceramics

Yan

Liang

Miao

et al. 2023

Ceramics International

View full text Add to dashboard Cite

Effect of CMAS attack behaviour on stress distribution in double-ceramic-layer thermal barrier coatings

Cited by 10 publications

References 66 publications

Design and experimental investigation of potential low-thermal-conductivity high-entropy rare-earth zirconates

Design and experimental investigation of potential low-thermal-conductivity high-entropy rare-earth zirconates

Numerical Simulation of the Residual Stress at the Interface between Thermal Barrier Coating and Nickel-Based Single-Crystal Superalloy Based on Crystal Plasticity Theory

Mechanical, thermal and CMAS resistance properties of high-entropy (Gd0.2Y0.2Er0.2Tm0.2Yb0.2)2Zr2O7 ceramics

Contact Info

Product

Resources

About