The phase composition and structure of powders of titanium sponge exposed to processes of chemical and thermal processing is investigated. As a result of X-ray analysis, it is found that after hydrogenation titanium powder consists of <$E roman TiH sub {2~symbol С~x}> phase, while with the increase in the degree of phase dehydrogenation the percentage of <$E roman TiH sub {2~symbol С~x}> decreases, and under perfect the dehydrogenation the structure consists mainly of <$E alpha>-Ti. Particle size analysis revealed that the partially dehydrated powders have the least degree of polydispersity. It is established that by means of regulation of technological regimes of hydrogenationdehydrogenation the two-phase structure with different ratios of <$E alpha>-phase to <$E roman TiH sub {2~symbol С~x}> can be synthesized. It is shown that the presence of titanium hydride contributes to stabilization of the structure of formed powders.

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