Molten Salt Corrosion Resistance of Yttria Stabilized Zirconia Coating with Silicon Carbide Interlayer on High Density Graphite

Rao, Ch. Jagadeeswara; Madhura, B.; Vetrivendan, E.; Thyagarajan, K.; Ningshen, S.; Mallika, C.; Mudali, U. Kamachi

doi:10.1007/s12666-017-1260-1

Cited by 12 publications

(3 citation statements)

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“…Overall, these results focused on the post-heated treatment of the YSZ coating or the surface modification on the laser irradiating areas rather than the surrounding areas that discussed by authors. The thermal effect noted here was from the laserablating radiation which raised another perspectives into the previous papers [34][35][36][37].…”

Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 99%

“…Thermal effects on the YSZ materials were conducted in the previous papers so far [34][35][36][37]. Certain results focused on the post-heated treatment of YSZ coating to determine the influence of water vapor on thermal conductivity [34], or high temperature corrosion behavior [35]. In relation to studies on the laser irradiation of the YSZ materials, the surface modification of plasma-sprayed YSZ coating [36] and remelting and oxidation of the YSZ surface [37] were discussed.…”

Section: Discussionmentioning

confidence: 99%

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Modification of single-crystalline yttria-stabilised zirconia induced by radiation heating from laser-produced plasma

Mori

Sunahara

Nishimura

et al. 2019

J. Phys. D: Appl. Phys.

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Thermal modifications induced by intense laser pulse irradiation of a material surface are studied. Single-crystalline yttria-stabilised zirconia (YSZ) is irradiated with Joule-class intense laser pulses with three focal intensities of 10 12 , 10 13 , and 10 17 W cm −2 at pulse durations of 15 ns, 300 ps and 110 fs, respectively. The physical surface properties of the irradiated YSZ are determined using an optical digital microscope, a scanning electron microscope and x-ray diffraction methods. In all three cases, a linear scratch pattern along the crystal orientation on the YSZ surface is found, which surrounds the laser irradiation spot area (diameter: 60 µm). In the 15 ns case, the focal spot area is polycrystallised with a tensile residual stress of 0.45 ± 0.05 GPa. However, the linear scratch pattern of 1.8 mm in diameter remains in the single-crystalline phase of YSZ, having a residual stress below the detection limit. A two-dimensional radiation-hydrodynamic simulation reveals that a radiative plasma source generated on the focal spot by the laser irradiation ablates the material surface. A region of approximately 1.4 mm in diameter is affected by an ion temperature beyond 0.25 eV; hence, ablation of the material surface to a thickness of 1 µm order is observed. The diameter of this simulated ablation region is consistent with that of the linear scratch patterns observed in the experiments to within a factor 1.3. The findings of this study indicate that a large area relative to the laser focal area can be modified by radiation heating in a laser-induced material

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Section: Discussionmentioning

confidence: 86%