Wetting Bahaviour and Reactivity between Liquid Gd and ZrO2 Substrate

  • Patrycja Turalska Foundry Research Institute, 73 Zakopianska Str., 30-418 Krakow, Poland
  • Marta Homa Foundry Research Institute, 73 Zakopianska Str., 30-418 Krakow, Poland
  • Grzegorz Bruzda Foundry Research Institute, 73 Zakopianska Str., 30-418 Krakow, Poland
  • Natalia Sobczak Foundry Research Institute, 73 Zakopianska Str., 30-418 Krakow, Poland Institute of Precision Mechanics, 3 Duchnicka Str., 01-796 Warsaw, Poland
  • Ivan Kaban IFW Dresden, Institute for Complex Materials, Helmholtzstraße 20, 01069 Dresden, Germany
  • Norbert Mattern IFW Dresden, Institute for Complex Materials, Helmholtzstraße 20, 01069 Dresden, Germany
  • Jürgen Eckert Erich Schmidt Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, 8700 Leoben, Austria

Abstract


Wetting behavior and reactivity between molten pure Gd and polycrystalline 3YSZ substrate (ZrO2 stabilized with 3 wt% of Y2O3) was experimentally determined by a sessile drop method using classical contact heating procedure coupled with drop pushing procedure. The test was performed under an inert flowing gas atmosphere (Ar) at two temperatures of 1362 °C and 1412 °C. Immediately after melting (Tm=1341°C), liquid Gd did not wet the substrate forming the contact angle of θ=141°. The non-wetting to wetting transition (θ < 90°) took place after about 110 seconds of interaction and was accompanied by a sudden decrease in the contact angle value from θ=141° to θ=67°. Further heating of the Gd/3YSZ couple to test temperature did not affect its value and the final contact angle value after wettability test was established as θf=67°±1°.

The solidified Gd/3YSZ sessile drop couple was studied by means of optical microscopy and scanning electron microscopy coupled with X-ray energy diffraction spectroscopy. Structural investigations revealed that the wettability in the Gd/3YSZ system is of a reactive nature and it is associated with the formation of a continuous layer of a wettable reaction product Gd2Zr2O7.

Author Biographies

Patrycja Turalska, Foundry Research Institute, 73 Zakopianska Str., 30-418 Krakow, Poland
Marta Homa, Foundry Research Institute, 73 Zakopianska Str., 30-418 Krakow, Poland
Grzegorz Bruzda, Foundry Research Institute, 73 Zakopianska Str., 30-418 Krakow, Poland
Natalia Sobczak, Foundry Research Institute, 73 Zakopianska Str., 30-418 Krakow, Poland Institute of Precision Mechanics, 3 Duchnicka Str., 01-796 Warsaw, Poland
Ivan Kaban, IFW Dresden, Institute for Complex Materials, Helmholtzstraße 20, 01069 Dresden, Germany
Norbert Mattern, IFW Dresden, Institute for Complex Materials, Helmholtzstraße 20, 01069 Dresden, Germany
Jürgen Eckert, Erich Schmidt Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, 8700 Leoben, Austria

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Published
2017/10/31
How to Cite
Turalska, P., Homa, M., Bruzda, G., Sobczak, N., Kaban, I., Mattern, N., & Eckert, J. (2017). Wetting Bahaviour and Reactivity between Liquid Gd and ZrO2 Substrate. Journal of Mining and Metallurgy, Section B: Metallurgy, 53(3), 285. Retrieved from https://aseestant.ceon.rs/index.php/jmm/article/view/14770