Detection of vapor nanobubbles by small angle neutron scattering (SANS)
E Popov, L He, E Dominguez-Ontiveros… - Applied Physics …, 2018 - pubs.aip.org
Experiments using boiling water on untreated (roughness 100–300nm) metal surfaces using
smallangle neutron scattering (SANS) show the appearance of structures that are 50–70nm
in size when boiling is present. The scattering signal disappears when the boiling ceases,
and no change in the signal is detected at any surface temperature condition below
saturation. This confirms that the signal is caused by vapor nanobubbles. Two boiling
regimes are evaluated herein that differ by the degree of subcooling (3–10 C). A …
smallangle neutron scattering (SANS) show the appearance of structures that are 50–70nm
in size when boiling is present. The scattering signal disappears when the boiling ceases,
and no change in the signal is detected at any surface temperature condition below
saturation. This confirms that the signal is caused by vapor nanobubbles. Two boiling
regimes are evaluated herein that differ by the degree of subcooling (3–10 C). A …
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