Abstract

The self-organization of detonation nanodiamond particles in dielectric liquid polydimethylsiloxane has been studied by broadband dielectric spectroscopy. Frequency dependences of the conductivity and the complex modulus of dielectric permittivity were measured. The structure of nanodiamond suspensions has been studied by small-angle X-ray scattering as well. Electrophysical properties of detonation nanodiamond suspensions, namely conductivity and permittivity, strongly depend on the particle surface chemistry. The temperature dependences show the activation nature of polarization processes. The model explaining observed effects has been proposed.

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