Explosive vaporization of water-based nanofluid on a flat microheater

摘要

The explosive vaporization of the nanofluid formed by water and SiO_2 nanoparticles on a heater with the size of 100×110 μm was studied. In experiments, the reflected optical signal produced by heater lighting using laser beam was measured. The patterns of the initial stage of the nanofluid explosive vaporization were obtained and the effect of nanoparticles on the nucleation temperature was discussed. The variation of the nucleation temperature and vaporization time depending on the temperature increase rate was defined.