• 
  Banhart, J.; Ritter, C.: Decomposition of Ti and Zr Hydrides Studied by Neutron Diffraction. In: Nihad Dukhan [Ed.] : Proceedings of the 11th International Conference on Porous Metals and Metallic Foams (MetFoam 2019) Cham: Springer, 2020 The Minerals, Metals & Materials Series. - ISBN 978-3-030-42797-9, p. 39-46

10.1007/978-3-030-42798-6_4

Abstract:
TiH2 and ZrH2 are the most frequently used blowing agents for foaming low-melting alloys based on aluminium or zinc. In order to tailor the temperature range of decomposition such hydrides are often pre-annealed in Ar or air prior to their use. The decomposition behaviour of such compounds is usually studied by thermogravimetry and calorimetry. We applied neutron diffraction to gather more information about the decomposition of treated and untreated hydrides. In order to avoid strong incoherent scattering effects from hydrogen (1H), we used deuterated ( 2H) variants and could obtain high-quality diffraction patterns. In this way, we were able to quantify the amount of hydrogen for different decomposition stages as well as changes of the lattice structure for a range of Ti- and Zr-based blowing agents.