Electrometallurgy Today, 2023, №02



2023 №02 (06)

DOI of Article 10.37434/sem2023.02.07

2023 №02 (01)

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Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2023, #2, 46-56 pages

Problems of producing titanium hydride and determination of the concentrations of hydrogen and oxygen, nitrogen and carbon admixtures in it

O.M. Kalynyuk, R.V. Kozin, M.M. Kalynyuk, O.L. Puzrin

E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

Abstract
The negative infl uence of oxygen, nitrogen, and carbon admixtures in titanium hydride production is shown. The procedures were developed for determination in titanium hydride of the content of carbon admixtures in ceramic crucibles, and of oxygen and nitrogen in graphite crucibles by stepwise heating. Removal of the gas phase and part of the adsorbed layer of admixtures from the titanium hydride allows reducing the amount of oxygen and nitrogen admixtures in it by approximately 3 times. A procedure was developed for determination of hydrogen content in titanium hydride by burning this compound in a fl ow of gaseous oxygen with н2о formation. Recommendations are provided as regards the instruments to be used for analysis of titanium hydride for hydrogen content. The problem of formation of titanium hydride with superstoichiometric hydrogen content is considered. The papers published on this subject do not provide a convincing proof of the existence of such hydrides. 34 Ref., 4 Tables, 5 Figures.
Keywords: hydride, titanium, hydrogen, oxygen, nitrogen; carbon, determination

Received 6.09.2022

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