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Information × Registration Number 0223U002552, 0122U002233 , R & D reports Title Development and study of materials with specified thermo- and magnetoelastic properties based on multicomponent magnetoactive elastomers popup.stage_title Head Dzhezherya Yurii І., Доктор фізико-математичних наук Registration Date 23-02-2023 Organization Institute of Magnetism NAS of Ukraine and MES of Ukraine popup.description2  Symmetric features of the bending of an ideal beam of the magneto-active elastomer (MAE) in a transverse uniform magnetic field were studied, and it was found that the critical behavior of the bending and the uncertainty of the bending direction are a consequence of the degeneracy of the beam states. A phenomenological description of the critical bending of an ideal beam induced by a magnetic field was carried out, and it was established that a spontaneous change in the symmetry of the magnetic state of an ideal beam occurs at the critical point. It is shown that the longitudinal residual magnetization eliminates the uncertainty for the direction of bending of a weakly coercive MAE beam in a transverse uniform magnetic field, while in small fields due to this residual magnetization, the bending is directly proportional to the strength of the magnetic field. It is found that for a weakly coercive MAE beam, the bending critical behavior is preserved, but during the introduction/extraction of the magnetic field, the positions of the critical points do not coincide; the shift of critical points is caused by the magneto-rheological effect. Screening-induced phase transitions in core-shell nanoparticles were studied as a function of particle shape: an oblate disk, a sphere, and a needle, and a strong influence of the screening shell on the phase diagrams and polar properties of the nanoparticle was revealed. Product Description popup.authors Herasymchuk Ihor Victorovych Glushkovska Yulia O. Danilevich Oleksandr G. Dzshezsherya Yuriy I. Dreher Anatoliy Ya. Kalyta Viktor Mykhailovych Krupa Mykola Mykolayovych Pashchenko Oleksiy Valentynovych Polinchuk Pavlo Yu. Porev Sergiy M. Skirta Yurii B. Fesyсh igor V Khist Viktoriia V Hrebtov Arkadiy O. Cherepov Sergiy V Chernenko Mariya A. popup.nrat_date 2023-02-23 Close