We report on the high-temperature resolution measurements of the optical and thermal parameters of a liquid-crystal-silica nanoparticle colloid, as well as its video inspection, simultaneously performed in an upgraded photopyroelectric calorimeter. Over the nematic-isotropic coexistence region, the determined nematic correlation length, obtained from turbidity measurements, showed the characteristic two-step nematic nucleation process previously reported only for the specific heat.

Paoloni, S., Mercuri, F., Marinelli, M., Zammit, U., Neamtu, C., Dadarlat, D. (2008). Simultaneous characterization of optical and thermal parameters of liquid-crystal nanocolloids with high-temperature resolution. PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS, 78(4), 042701 [10.1103/PhysRevE.78.042701].

Simultaneous characterization of optical and thermal parameters of liquid-crystal nanocolloids with high-temperature resolution

PAOLONI, STEFANO;MERCURI, FULVIO;ZAMMIT, UGO;
2008-01-01

Abstract

We report on the high-temperature resolution measurements of the optical and thermal parameters of a liquid-crystal-silica nanoparticle colloid, as well as its video inspection, simultaneously performed in an upgraded photopyroelectric calorimeter. Over the nematic-isotropic coexistence region, the determined nematic correlation length, obtained from turbidity measurements, showed the characteristic two-step nematic nucleation process previously reported only for the specific heat.
2008
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/01 - FISICA SPERIMENTALE
English
Colloids; Powders; Silica; Turbidity; Coexistence regions; High temperatures; Nano colloids; Nematic correlation lengths; Nucleation processes; Optical-; Photopyroelectric calorimeters; Silica nanoparticles; Turbidity measurements; Calorimetry
Paoloni, S., Mercuri, F., Marinelli, M., Zammit, U., Neamtu, C., Dadarlat, D. (2008). Simultaneous characterization of optical and thermal parameters of liquid-crystal nanocolloids with high-temperature resolution. PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS, 78(4), 042701 [10.1103/PhysRevE.78.042701].
Paoloni, S; Mercuri, F; Marinelli, M; Zammit, U; Neamtu, C; Dadarlat, D
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/45888
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