Extended Data Fig. 3: Evaporation time τ of a water drop with volume Ω as a function of the temperature T of its substrate.
From: Inhibiting the Leidenfrost effect above 1,000 °C for sustained thermal cooling
The respective values of Ω are (from top to bottom) 13, 6, 4, 6, 30 and 17 µL, which affects the absolute value of the time but not its trend. For many data (those of refs. 5, 27,28 and 29), we observe a classical Leidenfrost behaviour, with a strong decrease of τ around the boiling point (BP), followed by a sharp rise of this time at the Leidenfrost transition. Short evaporation times correspond to τ of order 1s, and they are observed in this case between the BP and the LFP. For the data of Ref. 3, the behaviour is different, with a slow decrease of the time τ as a function of temperature. Its values remain above the regime of quick disappearance, except for AAO+nanoparticles where the regime of interest is achieved between 500 °C and 570 °C. By contrast, the STA sample achieves a low τ in a range of 1000 °C, between 200 °C and 1200 °C. Data in our work are mean ± s.d. from at least five independent measurements.
