Kinetic part of the Hamiltonian for a system of material points in curvilinear coordinates

V. I. Vernadskii Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences. Translated from Zhurnal Strukturnoi Khimii, Vol. 33, No. 3, pp. 164–167, May–June, 1992.     

Investigation of electronic configurations of Ni3(Fe,Ti) and Ni3(Mn,Ti) alloys

The ordinary Hall constant R_o of quenched Ni₃(Fe, Ti) and Ni₃(Mn, Ti) alloys was measured. The number of 4s and 3d electrons per atom was calculated on the basis of a four-band model. At low Ti concentrations in Ni₃(Fe, Ti) the contribution of 3d holes to R_o is negligible, but at high concentrations it is significant. The contribution of 3d holes to R_o for Ni₃(Mn, Ti) is considerable, and for Ni₃Mn and Ni₃(Mn +9.8% Ti) it is dominant. It is concluded that the changes in band energy of the bond between Ni and Ti in the considered systems are of a different nature.Deceased.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 12–14, May, 1981.     

Studies of characteristics of adsorption and radiolysis of methane on an aluminum-oxide surface by IR spectroscopy in diffusely scattered light

The method of IR spectroscopy in diffuse scattered light was used to study adsorption and heterogeneous radiation-induced transformations of methane (deuteromethane) on an aluminum γ-oxide surface. It is found that under the action of γ-quanta the CH₄ adsorption centers appear on the γ-Al₂O₃ surface at room temperature, following the molecular and dissociative mechanisms. It is shown that hydrocarbon decomposition products, aluminum hydrates, and surface hydroxyl groups are produced in radiolysis. A mechanism of radiolytic processes in γ-Al₂O₃+ ads. CH₄(CD₄) systems is suggested on the basis of the present experimental results. Here and in what follows γ-forms of Al₂O₃ are meant. Sector of Radiological Studies of the Academy of Sciences of the Azerbaidzhan Republic, 31a, G. Dzhavid Ave., Baku, 37143, Azerbaidzhan. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 65, No. 1, pp. 34–39, January–February, 1998.