Optical measurements of the thermal properties of nanofluids
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Upper right inset: TL signals for a MFA suspension at (•) compared to pure water (엯). Full lines are fits using Eq. (2). Lower left inset: Thermal diffusivity of MFA suspensions obtained from . A linear fit yields . Main body: thermal conductivity with respect to water for the same samples, obtained either from the thermal lens numbers (•) or from the thermal diffusivity data (엯), using . The full and broken lines are linear fits to the data, while the two dotted curves correspond to the theoretical bound in Eq. (3).
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