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J.Q. He

Researcher at Harbin Institute of Technology

Publications -  18
Citations -  832

J.Q. He is an academic researcher from Harbin Institute of Technology. The author has contributed to research in topics: Thermal barrier coating & Microstructure. The author has an hindex of 14, co-authored 18 publications receiving 722 citations.

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Thermal shock behavior of 8YSZ and double-ceramic-layer La2Zr2O7/8YSZ thermal barrier coatings fabricated by atmospheric plasma spraying

TL;DR: In this paper, the authors investigated the thermal shock behavior of three as-sprayed TBCs at 1000°C and 1200°C with NiCrAlY as the bond coat, and the results indicated that the thermal cycling lifetime of the double-ceramic-layer (DCL) TBC is longer than that of SCL 8YSZ TBC due to the fact that the DCL LZ/8YSZ further enhance the thermal insulation effect, improve the sintering resistance ability and relieve the thermal mismatch between the ceramic layer and the metallic layer at
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Influence of pores on the thermal insulation behavior of thermal barrier coatings prepared by atmospheric plasma spray

TL;DR: In this paper, a finite element method was employed to simulate the thermal transfer behavior of TBCs with different spatial and geometrical characteristic of pores, and the simulation results indicated that the thermal insulation effect would be enhanced when the pore size, pore volume fraction and pore layers which are perpendicular to the thickness direction increase and the space between the adjacent pores decreases.
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Finite element simulation of residual stress of double-ceramic-layer La2Zr2O7/8YSZ thermal barrier coatings using birth and death element technique

TL;DR: In this paper, the residual stress of double-ceramic-layer (DCL) La2Zr2O7/8YSZ thermal barrier coatings (TBCs) fabricated by atmospheric plasma spraying (APS) was calculated by finite element simulation using birth and death element technique.
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Microstructure and indentation mechanical properties of plasma sprayed nano-bimodal and conventional ZrO2–8wt%Y2O3 thermal barrier coatings

TL;DR: In this article, the elastic modulus, micro-hardness and Vickers hardness of nanostructured thermal barrier coatings (TBCs) exhibit bimodal distribution while the conventional 8YSZ exhibit mono-modal distribution.
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Finite element simulation of stress distribution and development in 8YSZ and double-ceramic-layer La2Zr2O7/8YSZ thermal barrier coatings during thermal shock

TL;DR: In this paper, the thermal stress of the double-ceramic-layer (DCL) La2Zr2O7/8YSZ thermal barrier coatings (TBCs) fabricated by atmospheric plasma spraying (APS) during thermal shock has been calculated.