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Information × Registration Number 0308U001430, 0106U003112 , R & D reports Title The Metals of IVA groups and quasicrystals on their base: physical properties and hydrogen storage popup.stage_title Вплив водню на електричний опір гафнію "ядерної" чистоти Head Merisov Boris Olexandrovich; Khadzhaj Georgij Jaroslavovich, Registration Date 04-02-2008 Organization Kharkov national university named after V.N. Karazin popup.description2 The Objects of study: Clean hafnium and zirconium with hydrogen, clean hafnium, zirconium, titanium. The Methods of study: Measurement of electrical resistance, heat conductivity and heat linear expansion; X-ray diffraction. The Purpose of work: Study of the Hydrogen influence of on physical characteristics of the hafnium and other metals IVA groups. The electrolytic loaded hydrogen enlarges the hafnium resistance, but reduces the zirconium resistance at the room temperatures. The difference curves D?H(T)= ?H(T)-?ini(T) have the maximums in the field of 130-300 K, which heights, at least once hafnium, practically linear grow when the content of hydrogen increases. The temperature dependencies of electrical resistivities of clean titanium and zirconium can be approximated by dependency, which takes into account the scattering of s-electrons in s- and d zones. The heat conductivity of these metals has the low temperature maximum. The Value of the Lorenz number exceeds the Summerfield value in all explored interval of the temperature. There are received the temperature dependencies of the heat linear expansion coefficient of these metals in the interval 77-300 K. Product Description popup.authors popup.nrat_date 2020-04-02 Close