Volodymyr Nadutov

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The phase composition and electrical transport properties of Cu powder obtained by electric spark dispersion and the pellets manufactured from this powder were studied by X-ray phase analysis and electric resistance measurements. The compacted powders were annealed in pure Ar atmosphere. It was shown that electrical resistance of the compacted Cu specimens(More)
The Mössbauer and X-rays analysis of as-received Fe-powder and Fe-powder mechanically alloyed with C using high power ultrasonics were carried out. The powder blend of Fe-powder and graphite was processed in He environment during 5 to 50 h. The dissolution of carbon in iron particles and inhomogeneous distribution of C atoms in crystallites was revealed.(More)
Anti-Invar effect was revealed in the f.c.c.-Fe-25.3%Ni-0,73%C (wt%) alloy, which demonstrates high values of thermal expansion coefficient (TEC) (15 21) 10 K accompanied by almost temperature-insensitive behavior in temperature range of 122 K – 525 K. Alloying with carbon considerably expanded the low temperature range of anti-Invar behaviour in f.c.c.(More)
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