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Nanoscience and Technology: An International Journal

Publicado 4 números por año

ISSN Imprimir: 2572-4258

ISSN En Línea: 2572-4266

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.3 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.7 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00023 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.11 SJR: 0.244 SNIP: 0.521 CiteScore™:: 3.6 H-Index: 14

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SMART MATERIALS WITH ELECTRICALLY CONTROLLED PROPERTIES. ELECTRORHEOLOGICAL SUSPENSIONS WITH A NANOSIZED POLYMERIC DISPERSED PHASE. PART 2. EXPERIMENTAL INVESTIGATION OF ELECTRORHEOLOGICAL SUSPENSIONS BASED ON POLYIMIDES

Volumen 3, Edición 3, 2012, pp. 239-281
DOI: 10.1615/NanomechanicsSciTechnolIntJ.v3.i3.30
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SINOPSIS

The electrorheological properties of a new generation of "smart materials", namely, electrorheological suspensions (ERS) based on nanosized polymeric particles of polyimides in the medium of methyl silicone, are discussed. The optimal structures of polyimides with a high electrorheological response were predicted within the framework of quantum mechanical investigations on the previous stages of the authors' research (Yanovsky et al., 2011) and synthesized at the Federal Budget State Research Establishment "Institute of Applied Mechanics of the Russian Academy of Sciences". For the obtained polyamide particles with a different chemical structure, the electrophysical properties (sizes of particles and of their aggregates, size distribution, specific surface, double electric layer potential, electrorheological response on shear in electric fields of different intensities) were investigated. The chemical composition of polyimides with optimal electrorheological characteristics has been established. Based on these specimens, electrorheological suspensions with different concentrations of the dispersed phase have been obtained. For the first time, the curves of flow, dynamic rheological characteristics, namely, the moduli of elasticity and losses, loss-angle tangent of similar electrorheological suspensions based on nanosized particles of polyimides were described in a wide range of rheological parameters: the rates of shearing, frequencies of periodic sinusoidal small-amplitude deformation, and temperatures at different concentrations of dispersed phase. The presence of a high-power electrorheological effect in these materials as compared to the electrorheological suspensions based on microsized suspensions, as well as a slight dependence of the electrorheological characteristics on temperature up to 80°C were noted. The results obtained open up prospects for wide practical application of this type of materials.

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