arXiv subjects

V. I. Sokolenko

Publications and source records attributed to V. I. Sokolenko.

3 recordsLinked to original sources

arXiv2013

Thermoelectromotive force of hafnium at plastic deformation in regime of creep at temperature of 300 K

The thermoelectromotive force and electrical resistivity of the polycrystalline hafnium (Hf) with the grain size of 10 μm during the process of plastic deformation in the regime of creep at the temperature of 300 K are precisely measured. It is shown that the thermoelectromotive force depends on the deformation mechanism nature, because of the changing magnitude of the electrons scattering on the different structural defects in the hafnium crystal lattice at the deformation process. The main research conclusion is that the method of thermoelectromotive force measurements is more informative, comparing to the method of electric resistivity measurements in the process of accurate characterization of the hafnium.

cond-mat.mtrl-sci↗

arXiv2013

Influence by zirconium plastic deformation at temperature of 4.2 K on zirconium crystal lattice structure and magnitude of superconducting transition temperature Tc

We have researched the effect of the zirconium deformation by the extension at the temperature of 4.2 K, with the subsequent heating up to the room temperature of 300 K, on both the zirconium crystal grating structure and the magnitude of superconducting transition temperature Tc, using the zirconium samples, synthesized by the method of the electron beam melting. In our opinion, a registered substantial increase of the critical temperature Tc (by 20%) is a result of both the superconductivity enhancement in the plastic deformation regions at the twin boundaries of the zirconium crystal grating and the effective change of the inter-electron attraction constant magnitude.

cond-mat.supr-con↗

arXiv2013

The advanced setup for synthesis of composite long-length superconducting tape of Nb3Sn

The description of design of advanced technological setup for the synthesis of composite long-length superconducting tape on the basis of Nb3Sn is presented. The design of setup has allowed us to produce the Nb3Sn tape with the record magnitudes of density of critical current Jc in the magnetic fields H of above 10 T (H > 10 T). The high current density conductivity property is reached as a result of both the optimization of technological process of the Nb3Sn tape synthesis and the increase of thickness of superconductor layer, which is characterized by the homogeneous physical properties.

cond-mat.mtrl-sci↗