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Initial wetting phenomena and spreading property of CaO–SiO2 slag on MgO single and poly-crystal refractory substrates are investigated using sessile drop technique and a high-speed camera (1500 frame/s). By observing and analyzing the spreading rate, change of the contact angle, and the composition change in slag and refractory, we found that the initial wetting is non-reactive and controlled by viscous friction.
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Park et al. (2014) studied this question.
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