The influence of chemical-thermal treatment on granulometric characteristics of titanium sponge powder
Date
2017-01-01
Journal Title
Journal ISSN
Volume Title
Publisher
Lviv Politechnic Publishing House
Abstract
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
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.
Description
Keywords
structure, titanium, phase hydride, granulometric characteristics, properties, powder
Citation
The 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.