Investigation of Titanium Hydride Produced from Titanium Waste

Yavor LUKARSKI; Jordan GEORGIEV; Lubomir ANESTIEV; Rositsa GAVRILOVA; Simona BEJAN

Autor/innen

Yavor LUKARSKI Bulgarian Academy of Sciences, Sofia, Bulgaria
Jordan GEORGIEV Bulgarian Academy of Sciences, Sofia, Bulgaria
Lubomir ANESTIEV Bulgarian Academy of Sciences, Sofia, Bulgaria
Rositsa GAVRILOVA University of Chemical Technologies and Metallurgy, Sofia, Bulgaria
Simona BEJAN Politehnica University of Bucharest, Romania

Schlagwörter:

hydrogen, titanium waste, titanium hydride

Abstract

The work presents an original method for titanium hydride production by hydrogenation and dehydrogenation of titanium waste in a specially designed for this purpose vacuum chamber. Laboratory quantities of titanium hydride were prepared using LaNi₅ hydrogen accumulator as a source of pure hydrogen. Chemical, X-ray, DTA, TG and granulometric analysis of the obtained hydride were made. The analyses carried out in the temperature range, 680-1070 К, DTA, TG and mass-spectrometry analysis allowed determining the activation energy of decomposition of the obtained TiH₂ which was approximately E = -135.5 kJ/mol and the standard enthalpy of formation ΔH = -140 kJ/mol.