Work number - M 52 AWARDED
Presented by National Technical University “Kharkiv Polytechnic Institute”
Authors: Zakharov A. V., Shlapa Yu. Yu., Nikytenko A. L., Zailer A. A.
The authors created new functional materials with special properties on the basis of theoretical and experimental studies and revealed new physical properties of magnetic materials. Materials can be implemented in medicine, in the creation of wireless communication systems, in the creation of radar-transparent and radar-absorbing materials - in particular fairing of homing missiles.
The scientific novelty of the research is as follows:
- technological parameters of synthesis and formation of radar-transparent ceramic materials having operating temperature up to 1500 °C are established, which is an essential advantage unlike foreign and domestic analogues;
- the conditions for obtaining low-agglomeration, crystalline, single-domain, superparamagnetic manganite nanoparticles with deformed perovskite structure (La,Sr) MnO3, in which the Curie temperature in the room temperature range can be controlled with high accuracy due to a partial change in the chemical composition, are determined;
- A model of a ferrite-dielectric resonator of the mm-band has been created, in which four resonance frequencies corresponding to hybrid modes of electromagnetic-spin oscillations are reconstructed at more than 1 GHz when the external magnetic field varies within the range 0 ... 4.79 kOe with the same sign and similar in magnitude slope.
The obtained materials were tested in industrial testing at the T. Shevchenko KNU (Department of Theoretical and Quantum Radiophysics), based on the M.K. Yangel Yuzhnoye Design Bureau and KSSIE Kvarsit SC Ukroboronprom.
The cycle of works submitted for the competition consists of 71 works published from 2014 to 2017, among them 30 articles, including 18 papers published sources, refused in the SCOPUS database, the general index of authors citation 14, the total h-index is 5.