Magneto-acoustics (LEMAC))``Parametrically phase-conjugate waves: applications in nonlinear acoustic imaging and diagnostics.'' An expanded version of the report by Rudenko is published in the`Physics of our days' section of this issue. An abridged version of reports 2 ± 4 is given below.
Crystal structure and supramolecular organization of new segmented thermoplastic polyurethane ureas and their nanocomposites with ultra-small additives (less than 0.1 wt.%) of single-walled carbon nanotubes (SWCNTs) have been been investigated using DSC and X-ray diff raction analysis. Taking into account the Avrami model, eff ects of physical aging and thermal history of the samples on the crystallization rate was described. It was demonstrated that the introduction of ultra small amounts of SWCNTs does not decrease the crystallinity, but decreases the crystallization rate.
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