Prof. Wipf

Investigated Systems

  • hydrogen metal systems
  • oxydic ceramics (e.g. YBa_2Cu_3O_x)
  • nanocrystalline materials
  • shape memory alloys

Investigated Properties

  • crystalline structure
  • solubility (of hydrogen or oxyigen)
  • diffusion
  • phase transitions
  • behavior and influence of lattice defects (e.g. interstitials, grain bounderies and phase bounderies)
  • lattice vibrations
  • mechanical (elastic) properties

Methods

  • preparation of alloys and hydrogen metal systems
  • mechanical milling
  • solubility measurements (hydrogen and oxygen)
  • x-ray diffraction
  • elastic and inelastic (quasielastic) neutron scattering
  • mechanical spectroscopy (internal friction, elastic aftereffect)