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30 November 2017 Measurements of dielectric constant of supercooled water in the temperature range from -20°C to -120°C at the frequencies of 7-11GHz
G. S. Bordonskiy, S. D. Krylov, A. O. Orlov
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Proceedings Volume 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 104664R (2017) https://doi.org/10.1117/12.2281497
Event: XXIII International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2017, Irkutsk, Russian Federation
Abstract
The measurements of an imaginary part of relative dielectric constant of supercooled water in the temperature range from –20 to –120°C at the frequencies of 7-11 GHz were made. We used water captured in silicate pores in order to reach deep supercooling. We determined an increased value of dielectric losses in the temperature range from –30 to –70°C with extremums near –45°C and –70°C as compared with a known model. These peculiarities are related to the influence of the second critical point and phase transition of water into ice.
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G. S. Bordonskiy, S. D. Krylov, and A. O. Orlov "Measurements of dielectric constant of supercooled water in the temperature range from -20°C to -120°C at the frequencies of 7-11GHz", Proc. SPIE 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 104664R (30 November 2017); https://doi.org/10.1117/12.2281497
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KEYWORDS
Dielectrics
Microwave radiation
Temperature metrology
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