Search academic texts

Information × Registration Number 0224U001345, 0122U001302 , R & D reports Title Heat and charge transfer in iron-based nanocomposite compounds: electroconsolidated permalloys and iron-containing superconductors popup.stage_title Head Vovk Ruslan V., Доктор фізико-математичних наук Registration Date 22-01-2024 Organization V.N. Karazin Kharkiv National University popup.description2  The object of research – processes of dispersion of heat and charge carriers in electroconsolidated Fe – Ni composites. The purpose of the research – to establish the mechanisms of dispersion of charge carriers and heat in Fe – Ni. Research method – experimental determination of electrical resistance and thermal conductivity in the range from 4.2 K to 300 K; analysis of the obtained dependencies. The temperature dependences in the range of 4.2–300 K of electrical resistance and thermal conductivity of a sample of the equiatomic Fe–Ni system obtained from nickel and iron powders by electroconsolidation for 10 min at a temperature of 1100 °C, a pressure of 35 MPa, and a current of ~5 kA were studied. It was established that the electrical and thermal conductivity of the electroconsolidated sample is significantly higher than that of samples of the same composition obtained by melting. It was found that the temperature dependence of the electrical resistance of the electroconsolidated sample in the investigated range of 4.2-300 K is due to the scattering of electrons by defects and phonons, and the scattering of electrons by phonons can be approximated with high accuracy by the Bloch-Gruneisen-Wilson ratio. Product Description popup.authors Vovk Ruslan V. Kislitsa Maksim V Khadzhai Georhiy Ya Chykina Olena Leonidivna popup.nrat_date 2024-01-22 Close