Trostyanchyn, AndriyLemishka, IhorSkrebtsov, AndriyOvchinnikov, Oleksandr2018-03-062018-03-062017-01-012017-01-012016-12-1The influence of chemical-thermal treatment on granulometric characteristics of titanium sponge powder / Zoya Duriagina, Andriy Trostyanchyn, Ihor Lemishka, Andriy Skrebtsov, Oleksandr Ovchinnikov // Ukrainian Journal Of Mechanical Engineering Andmaterials Science. — Lviv : Lviv Politechnic Publishing House, 2017. — Vol 3. — No 1. — P. 73–80.2411-8001https://ena.lpnu.ua/handle/ntb/39554The 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 TiH2±х phase, while with the increase in the degree of phase dehydrogenation the percentage of TiH2±х decreases, and under perfect the dehydrogenation the structure consists mainly of α-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 α-phase to TiH2±х can be synthesized. It is shown that the presence of titanium hydride contributes to stabilization of the structure of formed powders.73-80enstructuretitaniumphase hydridegranulometric characteristicspropertiespowderArticle© Національний університет "Львівська політехніка"© Duriagina Z., Trostyanchyn A., Lemishka I., Skrebtsov A., Ovchinnikov O., 20178