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Characterization of Defects in Titanium Created by Hydrogen Charging

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Hruška P., Čížek J., Knapp J., Melikhova O., Havela L., Mašková S., Lukáč F.

Acta Physica Polonica A

2017

vol. 132

issue 5

1606-1610

Hydrogen interaction with vacancies in α-Ti was investigated employing positron lifetime spectroscopy combined with ab initio theoretical modeling of vacancy-hydrogen complexes. Ab initio modeling revealed that multiple hydrogen atoms up to 7 can be trapped at vacancies in the α-Ti lattice. Trapped H atoms are located close to the nearest neighbor tetrahedral sites around the centre of vacancy. Lifetimes of positrons trapped at vacancies associated with various numbers of hydrogen atoms were calculated. Positron lifetime measurement of H-loaded α-Ti samples revealed that phase transition into the hydride phase introduced dislocations. Vacancies were created by H loading as well and agglomerated into small vacancy clusters.

Four years of EZ-IO® system in the preand in-hospital emergency setting

84%

Reinhardt L., Brenner T., Bernhard M., Knapp J., Sikinger M., Martin E., Helm M., Popp E.

Open Medicine

2013

vol. 8

issue 2

166-171

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1 Acta Physica Polonica A

1 Open Medicine

1 2017

1 2013

2 Knapp J.

1 Bernhard M.

1 Brenner T.

1 Havela L.

1 Helm M.

1 Hruška P.

1 Lukáč F.

1 Martin E.

1 Mašková S.

1 Melikhova O.

1 Popp E.

1 Reinhardt L.

1 Sikinger M.

1 Čížek J.

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Characterization of Defects in Titanium Created by Hydrogen Charging

Four years of EZ-IO® system in the preand in-hospital emergency setting