TITANIUM MATERIAL FOR SEPARATOR OF SOLID POLYMER FUEL ELEMENT, WHICH HAS LOW CONTACT RESISTANCE, AND ITS PREPARATION METHOD Russian patent published in 2012 - IPC H01M8/02 H01M8/10 C23C8/10 

FIELD: power industry.

SUBSTANCE: surface of titanium material has the structure of surface layer in which Ti connection particles containing C or N are dispersed, and at that, Ti connection particles are coated with titanium oxide and/or metallic titanium. Analysis of surface involves X-ray photoelectronic spectroscopy (XPS) by means of which Ti2p-spectrum of TiO₂ is detected, and besides, in the range of energies of TiO Ti2p-spectrum and/or in the range of energies of metallic Ti Ti2p-spectrum the height of maximum detected peak is at least by three times more than standard deviations of background in corresponding ranges of spectrum energies, and in the energy range of Cls-spectrum and in the energy range of Nls-spectrum the height of maximum detected peak is less by three times than standard deviations of the background in corresponding ranges of spectrum energies of Cls and Nls spectra.

EFFECT: invention allows obtaining titanium material having corrosion resistance, structure of surface layer of titanium material, which has high conductivity and, and is capable of having low leachability of ions in fuel element environment.

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