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Journal of Microwave Power
and Electromagnetic Energy (JMPEE) |
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TITLE |
Dielectric Relaxation in
Water Over the Frequency Range 13 ≤
f ≤ 18 GHz Using a Resonant Microwave Cavity Operating in the |
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AUTHORS |
J. Roberts and F. Wang 1993 28 4 196-205 |
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Abstract Dielectric relaxation measurements over the temperature range 273 ≤ T ≤ 360 K of deionized, doubly distilled water, were made and are used to establish transport properties in water. The resonant frequency perturbation and cavity resonance width change are used to establish some dynamical properties of water. The nature of the relaxation mechanisms for hydrogen bonding in water systems is explored. Relaxation times for separation and recombination are estimated and used to establish the temperature ranges in which hydrogen bonding dominated in forming polymeric species. The variation in real ε’ and ε” components of the dielectric response ε over temperature is assumed to be a consequence of this hydrogen structuring of the aqueous systems and the change of relaxation times for the system produced by these transient structures over temperature. Key Words: Molecular clustering, Dielectric relaxation, Water
structure, Microwave interaction |
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