Investigation of Titanium Hydride Produced from Titanium Waste

  • 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

Résumé

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.

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Références

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Publiée
2010-12-15
Rubrique
Articles

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