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Radiation Induced Surface Activity Phenomenon: 2nd Report — Radiation Induced Boiling Enhancement

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To delineate the effect of Radiation Induced Surface Activity (RISA) on boiling phenomenon, surface wettability in high-temperature environment or Leidenfrost condition and critical heat flux (CHF) of oxide metals irradiated by gamma rays were investigated. When the temperature of the heating surface reaches the wetting limit temperature, water-solid contact vanishes because of a stable vapor film between the droplet and the metal surface, i.e., a Leidenfrost condition. The wetting limit temperature increased with integrated irradiation dose. The CHF of oxidized titanium was improved up to 100% after 800 kGy 60Co gamma ray irradiated. Radiation Induced Boiling Enhancement (RIBE) phenomenon was firstly confirmed through the experiments.
Title: Radiation Induced Surface Activity Phenomenon: 2nd Report — Radiation Induced Boiling Enhancement
Description:
To delineate the effect of Radiation Induced Surface Activity (RISA) on boiling phenomenon, surface wettability in high-temperature environment or Leidenfrost condition and critical heat flux (CHF) of oxide metals irradiated by gamma rays were investigated.
When the temperature of the heating surface reaches the wetting limit temperature, water-solid contact vanishes because of a stable vapor film between the droplet and the metal surface, i.
e.
, a Leidenfrost condition.
The wetting limit temperature increased with integrated irradiation dose.
The CHF of oxidized titanium was improved up to 100% after 800 kGy 60Co gamma ray irradiated.
Radiation Induced Boiling Enhancement (RIBE) phenomenon was firstly confirmed through the experiments.

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