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Experimental Study on Wettability at High-Temperature Using TiO2-SiO2-CaO-Na3AlF6 Based Electrode Coating for AUSC Thermal Power Plant

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Abstract

The present paper investigates the wettability properties at high temperature using TiO2-SiO2-CaO-Na3AlF6 system-based electrode coating for advanced ultra-supercritical (AUSC) thermal power plant components. Twenty-six electrode coating compositions were designed and developed using the extreme vertices design approach. Pellets were made and then heated to 1150 °C on a substrate using an electrode coating mixture to study high-temperature wettability. The surface tension, contact angle, adhesion energy, and spread area of the molten flux were all investigated in this study. The surface tension was computed by applying Boni’s and Young’s equations based on the observed contact angle. Fourier transformation and X-ray diffraction have been used to determine the flux mixture’s structural properties. Regression analysis evaluated the influence of individual constituents and their binary and ternary interaction on wettability characteristics.

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Authors and Affiliations

  1. Mechanical Engineering Department, Indian Institute of Technology Jodhpur, Karwar, India

    Vijay Kumar, Jagdish Kumar & Rahul Chhibber

  2. University Center for Research and Development, and Mechanical Engineering Department, UIE, Chandigarh University, Gharuan, Punjab, India

    Lochan Sharma

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Kumar, V., Kumar, J., Chhibber, R. et al. Experimental Study on Wettability at High-Temperature Using TiO2-SiO2-CaO-Na3AlF6 Based Electrode Coating for AUSC Thermal Power Plant. Silicon 14, 11279–11291 (2022). https://doi.org/10.1007/s12633-022-01824-2

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